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X-WR-CALNAME:IAS Academic
BEGIN:VEVENT
UID:61343163-3535-4939-a239-303835373163
DTSTAMP:20231205T044449Z
CREATED:20230901T165906Z
DESCRIPTION:The Bahcall Lunch follow the astrophysics colloquium lecture.\n
Registration is required by 6pm the previous Thursday so a meal can be\npr
ovided. Email Amanda at cenker@ias.edu with questions.
DTSTART:20230905T163000Z
DTEND:20230905T173000Z
LAST-MODIFIED:20230901T170011Z
LOCATION:Simons Hall Dilworth Room
SUMMARY:Institute for Advanced Study / Princeton University Bahcall Lunch
URL:https://www.ias.edu/sns/events/institute-advanced-study-princeton-unive
rsity-bahcall-lunch-59
END:VEVENT
BEGIN:VEVENT
UID:37393736-3835-4839-a661-646362633238
DTSTAMP:20231205T044449Z
CREATED:20230901T171707Z
DESCRIPTION:Topic: Radiative Transfer in Astrophysics\n\nSpeakers: Romain T
eyssier\n\nAffiliation: Princeton University
DTSTART:20230905T190000Z
DTEND:20230905T200000Z
LAST-MODIFIED:20230901T171803Z
LOCATION:Peyton Hall\, Grand Central
SUMMARY:Princeton University Computational Astrophysics Club
URL:https://www.ias.edu/sns/events/princeton-university-computational-astro
physics-club-14
END:VEVENT
BEGIN:VEVENT
UID:66636235-3963-4763-b261-343632666130
DTSTAMP:20231205T044449Z
CREATED:20230901T174222Z
DESCRIPTION:Topic: Computational and Data Science in a Post-Exascale World
\n\nSpeakers: Todd Munson\n\nAffiliation: Argonne National Laboratory\n\nT
he Exascale Computing Project (ECP) is delivering two exascale\nsystems\,
Frontier and Aurora\, and the applications and software\ntechnologies to r
un on them. Trends in scientific applications and\ncomputer architecture d
uring the course of the ECP and the rise of\nAI/ML point toward an increas
ingly complex future. Architectures are\nrelying upon accelerators of diff
erent types for performance.\nScientific applications are adding physics\,
coupling models\, and\nencountering new scientific workflow challenges. D
uring this\npresentation\, I will focus on the implications of these trend
s on how\nwe will perform computational and data science and strategies th
at\nembrace the complexity with the goal of sustainably growing a\ncomputa
tional and data science program.
DTSTART:20230906T200000Z
DTEND:20230906T211500Z
LAST-MODIFIED:20230901T174304Z
LOCATION:Virtual Meeting
SUMMARY:Princeton Plasma Physics Laboratory (PPPL) Colloquium
URL:https://www.ias.edu/sns/events/princeton-plasma-physics-laboratory-pppl
-colloquium-7
END:VEVENT
BEGIN:VEVENT
UID:33663736-6133-4032-b065-663038333366
DTSTAMP:20231205T044449Z
CREATED:20230712T200403Z
DESCRIPTION:Topic: Nonlinear Dynamics of Distorted Astrophysical Discs: War
ps and All\n\nSpeakers: Callum W. Fairbairn\n\nAffiliation: The Institute
for Advanced Study\n\nThe classical perspective of astrophysical discs mod
els them as being\nflat\, circular and coplanar. However\, a wealth of obs
ervational\nevidence has highlighted the ubiquity of warped geometries in
a\nvariety of contexts. This has motivated theoretical efforts to explain
\nthe origins of such distortions and understand their ensuing dynamical\n
evolution. Despite marked progress\, a complete theory remains elusive\,\n
particularly in the observationally relevant regime of large warp\namplitu
des wherein nonlinear effects and hydrodynamic instabilities\nsignificantl
y modify the warp evolution.\n\nIn this talk I will take you down this war
ped and winding path as I\nintroduce a novel analytical ‘ring’ model for u
nderstanding the\nfundamental distorted dynamics. Our simplifying assumpti
ons\ncharacterise the activation of extreme compressive motions for the\nf
irst time\, which are an essential feature for sufficiently large warp\nam
plitudes. I will then turn towards local numerical experiments which\nrein
troduce all hydrodynamical degrees of freedom. This will reveal\nthe feedb
ack of small-scale hydrodynamic turbulence on the bulk\nwarping motions an
d highlight the rich range of scales intrinsic to\nthe detailed evolution.
\n\nIf I have time at the end\, I will briefly introduce the institute to
\nsome of my other interests regards dust-gas interactions\, the dynamics
\nof debris discs and eccentric planet-disc interactions.
DTSTART:20230907T150000Z
DTEND:20230907T160000Z
LAST-MODIFIED:20230901T153232Z
LOCATION:Bloomberg Lecture Hall
SUMMARY:Institute for Advanced Study Astrophysics Seminar
URL:https://www.ias.edu/sns/events/institute-advanced-study-astrophysics-se
minar-72
END:VEVENT
BEGIN:VEVENT
UID:38333139-3562-4737-b165-316535386539
DTSTAMP:20231205T044449Z
CREATED:20230908T141001Z
DESCRIPTION:Topic: 1. The Evolving Effect of Cosmic Web Environment on Gala
xy Quenching 2. Merging\, fragmentation\, and collapse of interstellar fil
aments\n\nSpeakers: Farhanul Hasan\, Elena Hoemann\n\nEach week\, we hold
a relatively informal seminar/discussion series\nwith an emphasis on extra
-galactic and large-scale structure\nastrophysics.\n\nDuring Galread a lea
der/visitor presents a recent paper to the\ndiscussion group. The PDF of t
he paper is projected onto a large\nscreen\, and a guest explains the pape
r\, section by section\, in greater\ndetail than may be explained within t
he text of the article. To aid\nwith discussion\, only the article PDF is
presented -- no\npowerpoint-style slides. Galread discussions are very fri
endly and\ninteractive.
DTSTART:20230911T150000Z
DTEND:20230911T160000Z
LAST-MODIFIED:20230908T142723Z
LOCATION:Zoom and Peyton Hall\, Grand Central
SUMMARY:Princeton University Galread [Galactic/Extragalactic Reading Group]
URL:https://www.ias.edu/sns/events/princeton-university-galread-galacticext
ragalactic-reading-group-71
END:VEVENT
BEGIN:VEVENT
UID:34306238-6562-4134-b564-663766613235
DTSTAMP:20231205T044449Z
CREATED:20230908T163207Z
DESCRIPTION:Topic: General Discussion
DTSTART:20230911T160000Z
DTEND:20230911T170000Z
LAST-MODIFIED:20230908T163221Z
LOCATION:Zoom and Peyton Dome Rm\, Princeton University
SUMMARY:Princeton University Extrasolar Planet Discussion Group
URL:https://www.ias.edu/sns/events/princeton-university-extrasolar-planet-d
iscussion-group-85
END:VEVENT
BEGIN:VEVENT
UID:34333837-3237-4432-a635-623738616565
DTSTAMP:20231205T044449Z
CREATED:20230908T150241Z
DESCRIPTION:Topic: Gravitational waves cosmology in the era of third genera
tion detectors.\n\nSpeakers: Sumit Kumar\n\nThe third-generation (3G) Grav
itational wave (GW) detectors such as\nthe Einstein telescope (ET) or Cosm
ic Explorer (CE) are expected to\ndetect thousands of GW merger events per
year with localization area\nless than a degree square. This will enable
us to probe the\nlarge-scale structure (LSS) features such as baryon acous
tic\noscillations (BAO)\, and clustering bias solely from the GW\nobservat
ions. In this talk\, I will discuss the methods to detect these\nLSS featu
res in 3G detectors era and their implications for cosmology.\nDetection o
f LSS features will help us in provide an independent probe\nfor cosmology
\, and strengthening the science case for the 3G\ndetectors. I will additi
onally cover optimal techniques for\nsynergizing data from BAO observation
s in galaxy surveys with that of\nGW events. Analyzing the redshift-depend
ent evolution of LSS features\ncould provide insights into the connection
between compact binary\nformation and broader structure formation.
DTSTART:20230911T163000Z
DTEND:20230911T180000Z
LAST-MODIFIED:20230908T150416Z
LOCATION:West Building Seminar
SUMMARY:Institute for Advanced Study/Princeton University Early Universe/Co
smology Lunch Discussion
URL:https://www.ias.edu/sns/events/institute-advanced-studyprinceton-univer
sity-early-universecosmology-lunch-discussion-58
END:VEVENT
BEGIN:VEVENT
UID:62386435-6366-4636-a261-656430656462
DTSTAMP:20231205T044449Z
CREATED:20230901T165932Z
DESCRIPTION:The Bahcall Lunch follow the astrophysics colloquium lecture.\n
Registration is required by 6pm the previous Thursday so a meal can be\npr
ovided. Email Amanda at cenker@ias.edu with questions.
DTSTART:20230912T163000Z
DTEND:20230912T173000Z
LAST-MODIFIED:20230901T165949Z
LOCATION:Simons Hall Dilworth Room
SUMMARY:Institute for Advanced Study / Princeton University Bahcall Lunch
URL:https://www.ias.edu/sns/events/institute-advanced-study-princeton-unive
rsity-bahcall-lunch-60
END:VEVENT
BEGIN:VEVENT
UID:33393639-3736-4535-a432-373864626262
DTSTAMP:20231205T044449Z
CREATED:20230908T173229Z
DESCRIPTION:Topic: Foundation of radiation hydrodynamics\n\nSpeakers: Romai
n Teyssier
DTSTART:20230912T180000Z
DTEND:20230912T190000Z
LAST-MODIFIED:20230908T191934Z
LOCATION:Peyton Hall\, Grand Central
SUMMARY:Princeton University Computational Astrophysics Club
URL:https://www.ias.edu/sns/events/princeton-university-computational-astro
physics-club-16
END:VEVENT
BEGIN:VEVENT
UID:63373739-6637-4730-b734-363430363730
DTSTAMP:20231205T044449Z
CREATED:20230908T173442Z
DESCRIPTION:Topic: Looking Backwards with the Cosmic Microwave Background\n
\nSpeakers: Suzanne T. Staggs\n\nThe cosmic microwave background (CMB) ema
nates from a brilliant plasma\nthat suffused the universe in its first mom
ents. Since the first\ndeliberate measurements of the radiation comprising
the CMB in the\nmid-60s\, our capacity to detect and decode its cosmologi
cal signatures\nhas increased remarkably. Prof. Staggs will describe the w
ay the CMB\nencodes information about not only the large-scale dynamics an
d\nstructure of the universe\, but also about its earliest instants and\ni
ts likely future. To study the largest length scales in the universe\,\nre
searchers use thousands and thousands of tiny thermometers which\nmeasure
the fluctuations in the heat delivered by the CMB\, and\nspecial-purpose t
elescopes located in some of the most extreme\nenvironments on and above t
he surface of the earth. After describing\nsome of this instrumentation\,
Prof. Staggs will conclude by discussing\nfuture prospects for even more k
nowledge she and her research team\nintend to pry from the CMB.
DTSTART:20230912T233000Z
DTEND:20230913T013000Z
LAST-MODIFIED:20230908T173531Z
LOCATION:Peyton Hall & Zoom
SUMMARY:Amateur Astronomers Association of Princeton (AAAP) Monthly Meeting
URL:https://www.ias.edu/sns/events/amateur-astronomers-association-princeto
n-aaap-monthly-meeting-22
END:VEVENT
BEGIN:VEVENT
UID:66633330-6136-4131-b539-323032653763
DTSTAMP:20231205T044449Z
CREATED:20230908T173652Z
DESCRIPTION:Topic: Introductions
DTSTART:20230913T180000Z
DTEND:20230913T190000Z
LAST-MODIFIED:20230908T173720Z
LOCATION:Peyton 025
SUMMARY:Princeton University HSC+PFS+Rubin Discussions
URL:https://www.ias.edu/sns/events/princeton-university-hscpfsrubin-discuss
ions-8
END:VEVENT
BEGIN:VEVENT
UID:34383238-3436-4937-a661-626565646638
DTSTAMP:20231205T044449Z
CREATED:20230712T200423Z
DESCRIPTION:Topic: Thermonuclear Supernovae\n\nSpeakers: Robert Fisher\n\nA
ffiliation: University of Massachusetts \n\nType Ia supernovae (SNe Ia) ar
e thermonuclear explosions of white\ndwarfs that serve as pivotal standard
izable candles in cosmology.\nWhile their role in cosmic distance determin
ation is well-established\,\nlong-standing questions regarding their stell
ar progenitors and\nexplosion mechanisms persist. In this talk\, I will pr
esent recent\nmultidimensional simulations of leading SNe Ia channels\, an
d show how\nthese naturally give rise to both normal brightness as well as
\nsubluminous failed detonation events. Furthermore\, I'll elucidate how\n
a range of observational data\, from transient optical light curves and\nX
-ray observations of supernova remnants to the 511 keV Galactic\npositron
annihilation emission\, can all be employed to constrain the\norigin of SN
e Ia.
DTSTART:20230914T150000Z
DTEND:20230914T160000Z
LAST-MODIFIED:20230908T174419Z
LOCATION:Bloomberg Lecture Hall
SUMMARY:Institute for Advanced Study Astrophysics Seminar
URL:https://www.ias.edu/sns/events/institute-advanced-study-astrophysics-se
minar-73
END:VEVENT
BEGIN:VEVENT
UID:30313733-3561-4564-a666-653036336139
DTSTAMP:20231205T044449Z
CREATED:20230908T175617Z
DESCRIPTION:Topic: General Discussion
DTSTART:20230915T163000Z
DTEND:20230915T173000Z
LAST-MODIFIED:20230908T175705Z
LOCATION:Dome Room\, Peyton Hall or Zoom
SUMMARY:Princeton University Astroplasmas Seminar
URL:https://www.ias.edu/sns/events/princeton-university-astroplasmas-semina
r-50
END:VEVENT
BEGIN:VEVENT
UID:61663539-3430-4265-b761-316339636364
DTSTAMP:20231205T044449Z
CREATED:20230908T141231Z
DESCRIPTION:Topic: Extending the Chemical Reach of the H3 Survey: Detailed
Abundances of the Dwarf-galaxy Stellar Stream Wukong/LMS-1\n\nSpeakers: Gu
ilherme Limberg\n\nEach week\, we hold a relatively informal seminar/discu
ssion series\nwith an emphasis on extra-galactic and large-scale structure
\nastrophysics.\n\nDuring Galread a leader/visitor presents a recent paper
to the\ndiscussion group. The PDF of the paper is projected onto a large
\nscreen\, and a guest explains the paper\, section by section\, in greate
r\ndetail than may be explained within the text of the article. To aid\nwi
th discussion\, only the article PDF is presented -- no\npowerpoint-style
slides. Galread discussions are very friendly and\ninteractive.
DTSTART:20230918T150000Z
DTEND:20230918T160000Z
LAST-MODIFIED:20230915T164650Z
LOCATION:Zoom and Peyton Hall\, Grand Central
SUMMARY:Princeton University Galread [Galactic/Extragalactic Reading Group]
URL:https://www.ias.edu/sns/events/princeton-university-galread-galacticext
ragalactic-reading-group-72
END:VEVENT
BEGIN:VEVENT
UID:65353034-3336-4432-a232-613335383331
DTSTAMP:20231205T044449Z
CREATED:20230908T163256Z
DESCRIPTION:Topic: General Discussion
DTSTART:20230918T160000Z
DTEND:20230918T170000Z
LAST-MODIFIED:20230915T164716Z
LOCATION:Zoom and Peyton Dome Rm\, Princeton University
SUMMARY:Princeton University Extrasolar Planet Discussion Group
URL:https://www.ias.edu/sns/events/princeton-university-extrasolar-planet-d
iscussion-group-86
END:VEVENT
BEGIN:VEVENT
UID:36383865-3834-4634-b232-623839656633
DTSTAMP:20231205T044449Z
CREATED:20230815T204157Z
DESCRIPTION:Topic: Optimization\, Complexity and Math (or\, can we prove P!
=NP by gradient descent?).\n\nSpeakers: Avi Wigderson\n\nAffiliation: Herb
ert H. Maass Professor\, School of Mathematics\n\nThis talk will summarize
a project I was involved in during the past 8\nyears. It started with att
empts to understand the PIT (Polynomial\nIdentity Testing) problem - a cen
tral problem involving randomness and\nhardness. It has led us to pursue m
any other goals. I hope to explain\nour most complete understanding we hav
e so far\, as well as challenges\nand open problems. The main messages of
this project are summarized\nbelow\; I plan to describe\, through examples
\, many of the concepts they\nrefer to\, and the evolution of ideas leadin
g to them. No special\nbackground is assumed. \n\n * The most basic tools
of convex optimization in Euclidean space\nextend to a far more general se
tting of Riemannian manifolds that\narise from the symmetries of noncommut
ative groups. We develop\nfirst-order and second-order algorithms\, and an
alyze their performance\nin general. While proving convergence bounds requ
ires heavy algebraic\nand analytic tools\, convergence itself depends in a
n elegant way on\nnatural ``smoothness’’ parameters\, in analogy with the
Euclidean\n(commutative) case. \n * These algorithms give exponential (or
better) improvements in\nrun-time for solving algorithmic many problems ac
ross CS\, Math and\nPhysics. In particular\, these include problems in alg
ebra (e.g.\ntesting rational identities in non-commutative variables)\, in
analysis\n(testing the feasibility and tightness of Brascamp-Lieb inequal
ities)\,\nin quantum information theory (to the quantum marginals problem)
\, in\nalgebraic geometry (to computing Kronecker coefficients)\, in\ncomp
utational complexity (to derandomizing new special cases of the\nPIT probl
em) and in optimization (to testing membership in large\,\nimplicitly desc
ribed polytopes). \n * The focus on symmetries exposes old and reveals new
relations\nbetween the problems above. Essentially\, they are all members
hip\nproblems in null cones and moment polytopes of natural group actions
\non natural spaces. Invariant theory\, which studies such group actions\,
\nplays an essential role in this development. In particular\, a\nbeautifu
l non-commutative duality theory (expending linear programming\nduality in
the commutative case)\, and notions of geodesic convexity\n(extending the
Euclidean one) and moment maps (extending the Euclidean\ngradient) are ce
ntral to the algorithms and their analysis.\nInterestingly\, most algorith
ms in invariant theory are\nsymbolic/algebraic\, and these new numeric/ana
lytic algorithms proposed\nhere often significntly improve on them. \n\nBa
sed on joint works with Zeyuan Allen-Zhu\, Peter Bürgisser\, Cole\nFranks\
, Ankit Garg\, Leonid Gurvits\, Pavel Hrubes\, Yuanzhi Li\, Visu\nMakam\,
Rafael Oliveira and Michael Walter.
DTSTART:20230919T143000Z
DTEND:20230919T163000Z
LAST-MODIFIED:20231003T200851Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Computer Science/Discrete Mathematics Seminar II
URL:https://www.ias.edu/math/events/computer-sciencediscrete-mathematics-se
minar-ii-547
END:VEVENT
BEGIN:VEVENT
UID:39366336-6464-4532-b630-343730336130
DTSTAMP:20231205T044449Z
CREATED:20230901T170024Z
DESCRIPTION:The Bahcall Lunch follow the astrophysics colloquium lecture.\n
Registration is required by 6pm the previous Thursday so a meal can be\npr
ovided. Email Amanda at cenker@ias.edu with questions.
DTSTART:20230919T163000Z
DTEND:20230919T173000Z
LAST-MODIFIED:20230914T130001Z
LOCATION:Simons Hall\, Dilworth Room
SUMMARY:Institute for Advanced Study / Princeton University Bahcall Lunch
URL:https://www.ias.edu/sns/events/institute-advanced-study-princeton-unive
rsity-bahcall-lunch-57
END:VEVENT
BEGIN:VEVENT
UID:39613934-6635-4635-b037-326531653338
DTSTAMP:20231205T044449Z
CREATED:20230915T164905Z
DESCRIPTION:Topic: Foundation of radiation hydrodynamics\n\nSpeakers: Romai
n Teyssier
DTSTART:20230919T180000Z
DTEND:20230919T190000Z
LAST-MODIFIED:20230915T164919Z
LOCATION:Peyton Hall\, Grand Central
SUMMARY:Princeton University Computational Astrophysics Club
URL:https://www.ias.edu/sns/events/princeton-university-computational-astro
physics-club-17
END:VEVENT
BEGIN:VEVENT
UID:63363437-3865-4261-a261-313330376662
DTSTAMP:20231205T044449Z
CREATED:20230918T153842Z
DESCRIPTION:Topic: Organizational Meeting\n\nSpeakers: Xinwen Zhu\n\nAffili
ation: Stanford University\; Member\, School of Mathematics\n\nThis is the
organizational meeting for a learning seminar during the\nfall term on to
pics related to non-abelian _p_-adic Hodge theory.
DTSTART:20230921T140000Z
DTEND:20230921T160000Z
LAST-MODIFIED:20230920T195123Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Special Year Seminar
URL:https://www.ias.edu/math/events/special-year-seminar-2
END:VEVENT
BEGIN:VEVENT
UID:30323563-3733-4965-a436-393036316565
DTSTAMP:20231205T044449Z
CREATED:20230712T200501Z
DESCRIPTION:Topic: Studying neutron stars with gravitational waves\n\nSpeak
ers: Katerina Chatziioannou\n\nAffiliation: California Institute of Techno
logy\n\nDetections of neutron stars in binaries through gravitational wave
s\noffer a novel way to probe the properties of extremely dense matter.\nI
n this talk I will describe the properties of the signals we have\nobserve
d\, what they have already taught us\, and what we expect to\nlearn in the
future. I will also discuss how information from\ngravitational waves can
be combined and compared against other\nastrophysical and terrestrial pro
bes of neutron star matter to unveil\nto the properties of the most dense
material objects that we know of.
DTSTART:20230921T150000Z
DTEND:20230921T160000Z
LAST-MODIFIED:20230914T194400Z
LOCATION:Bloomberg Lecture Hall
SUMMARY:Institute for Advanced Study Astrophysics Seminar
URL:https://www.ias.edu/sns/events/institute-advanced-study-astrophysics-se
minar-74
END:VEVENT
BEGIN:VEVENT
UID:61646136-6535-4362-a561-366336376336
DTSTAMP:20231205T044449Z
CREATED:20230915T171458Z
DESCRIPTION:Topic: Study of the transition of the pulsar RX J0440.9+4431 to
the supercritical accretion regime.\n\nSpeakers: Alexander Salganik
DTSTART:20230922T163000Z
DTEND:20230922T173000Z
LAST-MODIFIED:20230915T172004Z
LOCATION:Dome Room\, Peyton Hall or Zoom
SUMMARY:Princeton University Astroplasmas Seminar
URL:https://www.ias.edu/sns/events/princeton-university-astroplasmas-semina
r-51
END:VEVENT
BEGIN:VEVENT
UID:36363437-3130-4164-a331-316136303937
DTSTAMP:20231205T044449Z
CREATED:20230908T141352Z
DESCRIPTION:Topic: TDEs and their hosts (dwarfs galaxies)\n\nSpeakers: Eric
a Hammerstein\n\nEach week\, we hold a relatively informal seminar/discuss
ion series\nwith an emphasis on extra-galactic and large-scale structure\n
astrophysics.\n\nDuring Galread a leader/visitor presents a recent paper t
o the\ndiscussion group. The PDF of the paper is projected onto a large\ns
creen\, and a guest explains the paper\, section by section\, in greater\n
detail than may be explained within the text of the article. To aid\nwith
discussion\, only the article PDF is presented -- no\npowerpoint-style sli
des. Galread discussions are very friendly and\ninteractive.
DTSTART:20230925T150000Z
DTEND:20230925T160000Z
LAST-MODIFIED:20230908T141524Z
LOCATION:Zoom and Peyton Hall\, Grand Central
SUMMARY:Princeton University Galread [Galactic/Extragalactic Reading Group]
URL:https://www.ias.edu/sns/events/princeton-university-galread-galacticext
ragalactic-reading-group-75
END:VEVENT
BEGIN:VEVENT
UID:34633864-3565-4161-a537-663730653461
DTSTAMP:20231205T044449Z
CREATED:20230908T163322Z
DESCRIPTION:Topic: General Discussion
DTSTART:20230925T160000Z
DTEND:20230925T170000Z
LAST-MODIFIED:20230922T134702Z
LOCATION:Zoom and Peyton Dome Rm\, Princeton University
SUMMARY:Princeton University Extrasolar Planet Discussion Group
URL:https://www.ias.edu/sns/events/princeton-university-extrasolar-planet-d
iscussion-group-87
END:VEVENT
BEGIN:VEVENT
UID:35376330-3666-4635-b063-616261653738
DTSTAMP:20231205T044449Z
CREATED:20230922T134848Z
DESCRIPTION:Topic: Scaling simulation-based inference for the next generati
on of cosmological surveys\n\nSpeakers: Chirag Modi\n\nSimulation-based in
ference (SBI) is a promising approach to leverage\ncosmological simulation
s and extract information from the\nnon-Gaussian\, non-linear scales that
cannot be modeled analytically.\nHowever\, scaling SBI to the volumes and
resolutions probed by the next\ngeneration of galaxy clustering surveys ca
n be computationally\nprohibitive. This is exacerbated by the fact that if
we do not use\naccurate high fidelity simulations\, SBI is susceptible to
model\nmisspecification. I will begin by putting this in context with\ndi
scussing the sensitivity of SBI on the various components of\ncosmological
simulations: gravity model\, halo-finder and the\ngalaxy-halo distributio
n models (halo-occupation distribution\, HOD).\nThen\, to overcome this co
mputational bottleneck\, I will present a new\nframework for cosmological
analysis called Hybrid simulation-based\ninference (HySBI). HySBI combines
perturbative methods (PT) on large\nscales with conditional SBI on small
scales\, thus learning the\nsmall-scale likelihood for a wide range of sta
tistics using only\nsmall-volume simulations and drastically reduces compu
tational costs.\nAs a proof-of-principle\, I will show results of using Hy
SBI to\nconstrain cosmological parameters on dark matter density fields us
ing\nboth the power spectrum and wavelet coefficients\, finding promising
\nresults that significantly outperform classical PT methods. Finally\, I
\nwill discuss a roadmap for the next steps necessary to implement HySBI\n
on actual survey data\, including consideration of bias\, systematics\,\na
nd customized simulations.
DTSTART:20230925T163000Z
DTEND:20230925T180000Z
LAST-MODIFIED:20230922T134946Z
LOCATION:IAS\, West Seminar Room
SUMMARY:Institute for Advanced Study/Princeton University Early Universe/Co
smology Lunch Discussion
URL:https://www.ias.edu/sns/events/institute-advanced-studyprinceton-univer
sity-early-universecosmology-lunch-discussion-59
END:VEVENT
BEGIN:VEVENT
UID:61626131-3361-4762-b365-353734613537
DTSTAMP:20231205T044449Z
CREATED:20230922T142813Z
DESCRIPTION:Topic: Decomposing variable AGN and their host galaxies in HSC
with scarlet\n\nSpeakers: Charlotte Ward
DTSTART:20230925T200000Z
DTEND:20230925T210000Z
LAST-MODIFIED:20230922T144724Z
LOCATION:Zoom and Broadmead 102
SUMMARY:Princeton University Survey Science Discussion
URL:https://www.ias.edu/sns/events/princeton-university-survey-science-disc
ussion
END:VEVENT
BEGIN:VEVENT
UID:30346532-6132-4638-a534-343561646632
DTSTAMP:20231205T044449Z
CREATED:20230911T173051Z
DESCRIPTION:Speakers: Karen Uhlenbeck\, Maryna Viazovska\, Ingrid Daubechie
s\n\nIAS School of Mathematics Faculty and Members are invited to attend a
\nhybrid panel discussion as part of the 10th annual Heidelberg Laureate\n
Forum on Tuesday\, September 26\, 2023 at 10:15am EST in Simonyi Hall\n101
.\n\nConfirmed participants include:\n\n1. Ingrid Daubechies\; Distinguish
ed Professor of Mathematics and\nElectrical and Computer Engineering\, Duk
e University \n\n2. Karen Uhlenbeck\n[https://www.ias.edu/scholars/karen-u
hlenbeck]\; Distinguished\nVisiting Professor\, Institute for Advanced Stu
dy\n\n3. Maryna Viazovska\n[https://www.ias.edu/scholars/maryna-viazovska]
\; Member\, Institute\nfor Advanced Study\n\n4. Anna Wienhard\n[https://ww
w.ias.edu/scholars/anna-wienhard]\, Discussion Moderator\;\nScientific Cha
irperson of the Heidelberg Laureate Forum Foundation\n\n_The Heidelberg La
ureate Forum Foundation organizes the annual\nHeidelberg Laureate Forum (H
LF)\, a scientific networking conference\nwhere 200 outstanding young rese
archers in mathematics and computer\nscience meet the laureates of the mos
t renowned prizes in these fields\n(ACM Turing award\, ACM Prize of Comput
ing\, Fields Medal\, Abel Prize\,\nNevanlinna Prize\, IMU Abacus Medal). T
he 10th Heidelberg Laureate\nForum will take place from September 24 - 29\
, 2023 in Heidelberg\,\nGermany._
DTSTART:20230926T141500Z
DTEND:20230926T150000Z
LAST-MODIFIED:20230928T181346Z
LOCATION:Simonyi Hall 101
SUMMARY:Heidelberg Laureate Forum Panel Discussion
URL:https://www.ias.edu/math/events/heidelberg-laureate-forum-panel-discuss
ion
END:VEVENT
BEGIN:VEVENT
UID:62663965-3265-4136-b332-653233376332
DTSTAMP:20231205T044449Z
CREATED:20230901T170051Z
DESCRIPTION:The Bahcall Lunch follow the astrophysics colloquium lecture.\n
Registration is required by 6pm the previous Thursday so a meal can be\npr
ovided. Email Amanda at cenker@ias.edu with questions.\n\nNOTE: CHANGE OF
LOCATION TO RUBENSTEIN ROOM 5
DTSTART:20230926T163000Z
DTEND:20230926T173000Z
LAST-MODIFIED:20230901T170823Z
LOCATION:Rubenstein Commons | Meeting Room 5
SUMMARY:Institute for Advanced Study / Princeton University Bahcall Lunch
URL:https://www.ias.edu/sns/events/institute-advanced-study-princeton-unive
rsity-bahcall-lunch-62
END:VEVENT
BEGIN:VEVENT
UID:31323837-3635-4233-a235-353838313433
DTSTAMP:20231205T044449Z
CREATED:20230615T122523Z
DESCRIPTION:Topic: Non Abelian Hodge Theorems in Characteristics 0 and p\n
\nSpeakers: Siqing Zhang\n\nAffiliation: Member\, School of Mathematics
DTSTART:20230926T180000Z
DTEND:20230926T181500Z
LAST-MODIFIED:20231003T201127Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Short Talks by Postdoctoral Members
URL:https://www.ias.edu/math/events/short-talks-postdoctoral-members-611
END:VEVENT
BEGIN:VEVENT
UID:61646464-3731-4633-b837-613161656362
DTSTAMP:20231205T044449Z
CREATED:20230615T123111Z
DESCRIPTION:Topic: p-adic Shimura Varieties\n\nSpeakers: Mingjia Zhang\n\nA
ffiliation: Veblen Research Instructor\, School of Mathematics
DTSTART:20230926T182000Z
DTEND:20230926T183500Z
LAST-MODIFIED:20231003T201226Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Short Talks by Postdoctoral Members
URL:https://www.ias.edu/math/events/short-talks-postdoctoral-members-612
END:VEVENT
BEGIN:VEVENT
UID:35653830-3631-4036-a563-386430383132
DTSTAMP:20231205T044449Z
CREATED:20230615T123148Z
DESCRIPTION:Topic: Poincare Duality\n\nSpeakers: Bogdan Zavyalov\n\nAffilia
tion: Member\, School of Mathematics
DTSTART:20230926T184000Z
DTEND:20230926T185500Z
LAST-MODIFIED:20231003T201303Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Short Talks by Postdoctoral Members
URL:https://www.ias.edu/math/events/short-talks-postdoctoral-members-613
END:VEVENT
BEGIN:VEVENT
UID:33643434-3436-4461-b066-393561303566
DTSTAMP:20231205T044449Z
CREATED:20230615T123216Z
DESCRIPTION:Topic: From Rings to Ring Spectra\n\nSpeakers: Allen Yuan\n\nAf
filiation: Member\, School of Mathematics
DTSTART:20230926T200000Z
DTEND:20230926T201500Z
LAST-MODIFIED:20231003T202303Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Short Talks by Postdoctoral Members
URL:https://www.ias.edu/math/events/short-talks-postdoctoral-members-614
END:VEVENT
BEGIN:VEVENT
UID:36613933-3432-4536-a339-613432313634
DTSTAMP:20231205T044449Z
CREATED:20230615T123311Z
DESCRIPTION:Topic: Non-Archimedean Methods in K-stability\n\nSpeakers: Yueq
iao Wu\n\nAffiliation: Member\, School of Mathematics
DTSTART:20230926T202000Z
DTEND:20230926T203500Z
LAST-MODIFIED:20231003T202347Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Short Talks by Postdoctoral Members
URL:https://www.ias.edu/math/events/short-talks-postdoctoral-members-615
END:VEVENT
BEGIN:VEVENT
UID:65623365-3363-4361-b230-666134353138
DTSTAMP:20231205T044449Z
CREATED:20230615T123336Z
DESCRIPTION:Topic: On Hitchin-type Fibrations\n\nSpeakers: Xiao (Griffin) W
ang\n\nAffiliation: Member\, School of Mathematics
DTSTART:20230926T204000Z
DTEND:20230926T205500Z
LAST-MODIFIED:20231003T202426Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Short Talks by Postdoctoral Members
URL:https://www.ias.edu/math/events/short-talks-postdoctoral-members-616
END:VEVENT
BEGIN:VEVENT
UID:31306465-3762-4731-a630-323065363131
DTSTAMP:20231205T044449Z
CREATED:20230615T124014Z
DESCRIPTION:Topic: Triangulated Surfaces in Moduli Space\n\nSpeakers: Sahan
a Vasudevan\n\nAffiliation: Member\, School of Mathematics
DTSTART:20230927T180000Z
DTEND:20230927T181500Z
LAST-MODIFIED:20231003T202510Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Short Talks by Postdoctoral Members
URL:https://www.ias.edu/math/events/short-talks-postdoctoral-members-617
END:VEVENT
BEGIN:VEVENT
UID:64633834-3437-4365-b331-306330313532
DTSTAMP:20231205T044449Z
CREATED:20230615T124046Z
DESCRIPTION:Topic: Multiple Correlation Sequences and Higher Order Spectral
Theory\n\nSpeakers: Or Shalom\n\nAffiliation: Member\, School of Mathemat
ics
DTSTART:20230927T182000Z
DTEND:20230927T183500Z
LAST-MODIFIED:20231003T202551Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Short Talks by Postdoctoral Members
URL:https://www.ias.edu/math/events/short-talks-postdoctoral-members-618
END:VEVENT
BEGIN:VEVENT
UID:63303861-6365-4332-b137-383639623038
DTSTAMP:20231205T044449Z
CREATED:20230615T124120Z
DESCRIPTION:Topic: Infinite Cycles in the Interchange Process in Five Dimen
sions and First-Passage Percolation\n\nSpeakers: Dor Elboim\n\nAffiliation
: Member\, School of Mathematics
DTSTART:20230927T184000Z
DTEND:20230927T185500Z
LAST-MODIFIED:20231003T202632Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Short Talks by Postdoctoral Members
URL:https://www.ias.edu/math/events/short-talks-postdoctoral-members-619
END:VEVENT
BEGIN:VEVENT
UID:35653435-6139-4235-a464-356639323336
DTSTAMP:20231205T044449Z
CREATED:20230615T124231Z
DESCRIPTION:Topic: Full Exceptional Collections on Linear GIT Quotients\n\n
Speakers: Kimoi Kemboi\n\nAffiliation: Member\, School of Mathematics
DTSTART:20230927T200000Z
DTEND:20230927T201500Z
LAST-MODIFIED:20231003T202715Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Short Talks by Postdoctoral Members
URL:https://www.ias.edu/math/events/short-talks-postdoctoral-members-620
END:VEVENT
BEGIN:VEVENT
UID:35633335-3133-4834-b337-666133376136
DTSTAMP:20231205T044449Z
CREATED:20230615T130540Z
DESCRIPTION:Topic: The Complexity of Log-Concave Sampling\n\nSpeakers: Sinh
o Chewi\n\nAffiliation: Member\, School of Mathematics
DTSTART:20230927T202000Z
DTEND:20230927T203500Z
LAST-MODIFIED:20230928T114737Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Short Talks by Postdoctoral Members
URL:https://www.ias.edu/math/events/short-talks-postdoctoral-members-641
END:VEVENT
BEGIN:VEVENT
UID:62396231-3563-4465-b961-633736653634
DTSTAMP:20231205T044449Z
CREATED:20230712T200852Z
DESCRIPTION:Topic: Probing dark matter with resonant dynamics of the Galact
ic bar\n\nSpeakers: Rimpei Chiba\n\nAffiliation: University of Toronto\, C
ITA\n\nI will present a new evidence for dark matter from the measurement
of\nthe deceleration of the Galactic bar. Galactic bars are linear\nstruct
ures that form and rotate at the center of galactic disks. In\nthe presenc
e of dark matter haloes\, these bars are predicted to\ngradually spin down
by gravitationally transferring their energy and\nangular momentum to dar
k matter\, a process known as dynamical\nfriction. In contrast\, MOND theo
ries predict no bar slowdown since\ndisk stars alone cannot provide enough
friction on the bar. I will\ndemonstrate that the slowdown of the Galacti
c bar can be inferred from\nthe stars trapped in resonance with the bar: j
ust like annual\ntree-rings\, the resonant island in phase space evolves i
nside-out\,\ncapturing new stars by expanding its surface while conserving
the\ninternal distribution. Using the recent data from Gaia\, I will show
\nthat the bar's corotation resonance bears this tree-ring structure\,\nal
lowing us to infer the bar's slowdown history. In the latter part of\nmy t
alk\, I will also present a new approach to model dynamical\nfriction in t
he realistic nonlinear regime.
DTSTART:20230928T150000Z
DTEND:20230928T160000Z
LAST-MODIFIED:20230913T192828Z
LOCATION:Bloomberg Lecture Hall
SUMMARY:Institute for Advanced Study Astrophysics Seminar
URL:https://www.ias.edu/sns/events/institute-advanced-study-astrophysics-se
minar-77
END:VEVENT
BEGIN:VEVENT
UID:33623533-3730-4033-a265-653662306137
DTSTAMP:20231205T044449Z
CREATED:20230615T125153Z
DESCRIPTION:Topic: Motivic Filtrations and Evenness\n\nSpeakers: Arpon Raks
it\n\nAffiliation: Member\, School of Mathematics
DTSTART:20230928T180000Z
DTEND:20230928T181500Z
LAST-MODIFIED:20231003T201944Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Short Talks by Postdoctoral Members
URL:https://www.ias.edu/math/events/short-talks-postdoctoral-members-623
END:VEVENT
BEGIN:VEVENT
UID:61363864-3333-4162-a265-643861333862
DTSTAMP:20231205T044449Z
CREATED:20230615T125232Z
DESCRIPTION:Topic: On de Rham Cohomology in Characteristic p\n\nSpeakers: A
lexander Petrov\n\nAffiliation: Member\, School of Mathematics\n\nVideo\nl
ink: https://www.ias.edu/video/de-rham-cohomology-characteristic-p
DTSTART:20230928T182000Z
DTEND:20230928T183500Z
LAST-MODIFIED:20231003T201905Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Short Talks by Postdoctoral Members
URL:https://www.ias.edu/math/events/short-talks-postdoctoral-members-624
END:VEVENT
BEGIN:VEVENT
UID:32653033-6462-4261-b965-333834333338
DTSTAMP:20231205T044449Z
CREATED:20230615T125301Z
DESCRIPTION:Topic: Non-uniqueness Phenomena in Fluid Mechanics\n\nSpeakers:
Stan Palasek\n\nAffiliation: Member\, School of Mathematics
DTSTART:20230928T184000Z
DTEND:20230928T185500Z
LAST-MODIFIED:20231003T201817Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Short Talks by Postdoctoral Members
URL:https://www.ias.edu/math/events/short-talks-postdoctoral-members-625
END:VEVENT
BEGIN:VEVENT
UID:63623333-6264-4632-b839-363930653239
DTSTAMP:20231205T044449Z
CREATED:20230615T125406Z
DESCRIPTION:Topic: How Much Does a Characteristic p Variety Know About it's
Liftings?\n\nSpeakers: Shizhang Li\n\nAffiliation: Member\, School of Mat
hematics
DTSTART:20230928T200000Z
DTEND:20230928T201500Z
LAST-MODIFIED:20231003T201724Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Short Talks by Postdoctoral Members
URL:https://www.ias.edu/math/events/short-talks-postdoctoral-members-622
END:VEVENT
BEGIN:VEVENT
UID:65363631-6432-4264-b732-346633373737
DTSTAMP:20231205T044449Z
CREATED:20230615T125430Z
DESCRIPTION:Topic: K-rings of Wonderful Varieties and Matroids\n\nSpeakers:
Shiyue Li\n\nAffiliation: Member\, School of Mathematics
DTSTART:20230928T202000Z
DTEND:20230928T203500Z
LAST-MODIFIED:20231003T201640Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Short Talks by Postdoctoral Members
URL:https://www.ias.edu/math/events/short-talks-postdoctoral-members-627
END:VEVENT
BEGIN:VEVENT
UID:61623961-6265-4166-b962-306630623136
DTSTAMP:20231205T044449Z
CREATED:20230921T122630Z
DESCRIPTION:Topic: Why Do Cusp Forms Exist?\n\nSpeakers: A. Raghuram\n\nI
will begin this talk by reviewing the Eichler-Shimura isomorphism\nbetween
the space of cusp forms of weight k and level N\, and a certain\ncohomolo
gy group. Shimura called this cohomology group as parabolic\ncohomology. I
n the context of automorphic forms on higher groups\, such\na cohomology g
roup takes the form of cuspidal cohomology. The\nexistence of cusp forms o
f prescribed weight then may be reformulated\ninto the nonvanishing of cus
pidal cohomology with prescribed\ncoefficients. I will review the relevant
definitions to be able to\nstate the nonvanishing problem for cuspidal co
homology for GL(n) over\na number field. After briefly surveying what's kn
own\, I will discuss\nsome recent results obtained in joint work with Dars
han Nasit making\nsome modest progress towards this problem.
DTSTART:20230928T203000Z
DTEND:20230928T213000Z
LAST-MODIFIED:20230925T141151Z
LOCATION:Fine Hall 214\, Princeton University
SUMMARY:Joint PU/IAS Number Theory
URL:https://www.ias.edu/math/events/joint-puias-number-theory-10
END:VEVENT
BEGIN:VEVENT
UID:30656132-6463-4037-b237-323166386264
DTSTAMP:20231205T044449Z
CREATED:20230922T152135Z
DESCRIPTION:Topic: TBA
DTSTART:20230929T163000Z
DTEND:20230929T173000Z
LAST-MODIFIED:20230922T152153Z
LOCATION:Dome Room\, Peyton Hall or Zoom
SUMMARY:Princeton University Astroplasmas Seminar
URL:https://www.ias.edu/sns/events/princeton-university-astroplasmas-semina
r-52
END:VEVENT
BEGIN:VEVENT
UID:65656362-3866-4463-b830-663965633835
DTSTAMP:20231205T044449Z
CREATED:20230926T133442Z
DESCRIPTION:Topic: Organizational Meeting\n\nSpeakers: Bogdan Zavyalov\n\nT
his is the introductory talk for a semester-long learning seminar on\nthe
notion of solid modules and the resulting 6-functor formalism for\ncoheren
t cohomology.
DTSTART:20230929T183000Z
DTEND:20230929T203000Z
LAST-MODIFIED:20230926T133556Z
LOCATION:Princeton University\, Fine Hall 314
SUMMARY:Condensed Learning Seminar
URL:https://www.ias.edu/math/events/condensed-learning-seminar-7
END:VEVENT
BEGIN:VEVENT
UID:37653363-3136-4830-a362-306139373633
DTSTAMP:20231205T044449Z
CREATED:20230908T141538Z
DESCRIPTION:Topic: Trinity I: Self-Consistently Modeling the Dark Matter Ha
lo-Galaxy-Supermassive Black Hole Connection from\n\nSpeakers: Haowen Zhan
g\n\nEach week\, we hold a relatively informal seminar/discussion series\n
with an emphasis on extra-galactic and large-scale structure\nastrophysics
.\n\nDuring Galread a leader/visitor presents a recent paper to the\ndiscu
ssion group. The PDF of the paper is projected onto a large\nscreen\, and
a guest explains the paper\, section by section\, in greater\ndetail than
may be explained within the text of the article. To aid\nwith discussion\,
only the article PDF is presented -- no\npowerpoint-style slides. Galread
discussions are very friendly and\ninteractive.
DTSTART:20231002T150000Z
DTEND:20231002T160000Z
LAST-MODIFIED:20230908T141638Z
LOCATION:Zoom and Peyton Hall\, Grand Central
SUMMARY:Princeton University Galread [Galactic/Extragalactic Reading Group]
URL:https://www.ias.edu/sns/events/princeton-university-galread-galacticext
ragalactic-reading-group-76
END:VEVENT
BEGIN:VEVENT
UID:65643663-3962-4630-a632-323735613735
DTSTAMP:20231205T044449Z
CREATED:20230809T185555Z
DESCRIPTION:Topic: The Diffraction Limit and Extremal Functions\n\nSpeakers
: Ankur Moitra\n\nIt is widely believed that the physics of diffraction im
poses certain\nfundamental limits on the resolution of an optical system.
In this\nwork we study the diffraction limit as a statistical inverse prob
lem\nin increasingly more realistic mathematical models and prove rigorous
\nupper and lower bounds on the sample complexity of resolving\nclosely-sp
aced point sources. Our techniques center around extremal\nfunctions\, nam
ely the Beurling-Selberg majorant and its\nhigher-dimensional generalizati
ons\, which we use to show the emergence\nof a sharp phase transition that
governs when it is possible to\nrecover fine-grained structure from low-f
requency measurements. \n\nBased on joint work with Sitan Chen.
DTSTART:20231002T151500Z
DTEND:20231002T161500Z
LAST-MODIFIED:20231003T200950Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Computer Science/Discrete Mathematics Seminar I
URL:https://www.ias.edu/math/events/computer-sciencediscrete-mathematics-se
minar-i-546
END:VEVENT
BEGIN:VEVENT
UID:63306536-3463-4230-b032-626263346537
DTSTAMP:20231205T044449Z
CREATED:20230908T163352Z
DESCRIPTION:Topic: Characterizing white dwarf planetary systems with dynami
cal theory\n\nSpeakers: Chris O’Connor\n\nThe planetary systems of white d
warf (WD) stars are fertile ground for\ninsight on the properties and evol
ution of planetary systems in\ngeneral. Interest in WD planets has grown d
ramatically of late\,\nsparking collaborative efforts across diverse resea
rch areas like\norbital dynamics\, cosmochemistry\, planetary atmospheres\
, and\nastrobiology. I will discuss recent progress in understanding the\n
dynamical evolution of WD planetary systems and show how this provides\nke
y context for interpreting existing and future observations. First\,\nI wi
ll focus on the short-period giant planet WD1856+534b and efforts\nto unde
rstand its survival and orbital migration. I will then turn to\nthe origin
s of metal pollution in WDs\, describing how dynamical models\nhint at the
typical properties of unseen\, long-period planets in these\nsystems.
DTSTART:20231002T160000Z
DTEND:20231002T170000Z
LAST-MODIFIED:20230929T145347Z
LOCATION:Zoom and Peyton Dome Rm\, Princeton University
SUMMARY:Princeton University Extrasolar Planet Discussion Group
URL:https://www.ias.edu/sns/events/princeton-university-extrasolar-planet-d
iscussion-group-88
END:VEVENT
BEGIN:VEVENT
UID:36396231-3363-4732-b637-303838643537
DTSTAMP:20231205T044449Z
CREATED:20230922T140127Z
DESCRIPTION:Topic: The first pieces of the gravitational-wave progenitor po
pulation puzzle\n\nSpeakers: Lieke Van Son\n\nAbstract: As the event catal
og has grown from O(10) to O(100)\, the\nfield of gravitational-wave astro
nomy has been rapidly unfolding. We\nare moving from a phase of initial di
scovery into an era of population\nstudies. The hope is that these observa
tions help place new\nconstraints on the otherwise elusive lives and death
s of massive stars\nthroughout cosmic history. I will discuss how the firs
t pieces of the\ngravitational-wave progenitor population puzzle have help
ed us so far\nto form a picture of their massive stellar ancestors. Additi
onally\, I\nwill touch upon some of the hopes but also pitfalls of populat
ion\nstudies and discuss why the coming decades will be particularly\nexci
ting.
DTSTART:20231002T163000Z
DTEND:20231002T180000Z
LAST-MODIFIED:20230929T150814Z
LOCATION:Peyton Hall\, Grand Central
SUMMARY:Institute for Advanced Study/Princeton University Early Universe/Co
smology Lunch Discussion
URL:https://www.ias.edu/sns/events/institute-advanced-studyprinceton-univer
sity-early-universecosmology-lunch-discussion-60
END:VEVENT
BEGIN:VEVENT
UID:31373434-3366-4134-a561-333032303034
DTSTAMP:20231205T044449Z
CREATED:20230615T125505Z
DESCRIPTION:Topic: Sparsifying Generalized Linear Model\n\nSpeakers: Yang L
iu\n\nAffiliation: Member\, School of Mathematics
DTSTART:20231002T180000Z
DTEND:20231002T181500Z
LAST-MODIFIED:20231003T201607Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Short Talks by Postdoctoral Members
URL:https://www.ias.edu/math/events/short-talks-postdoctoral-members-628
END:VEVENT
BEGIN:VEVENT
UID:38393764-3863-4435-b833-333539663961
DTSTAMP:20231205T044449Z
CREATED:20230615T125602Z
DESCRIPTION:Topic: Cohomology of Classifying Stacks (and Spaces)\n\nSpeaker
s: Dmitry Kubrak\n\nAffiliation: Member\, School of Mathematics
DTSTART:20231002T182000Z
DTEND:20231002T183500Z
LAST-MODIFIED:20231003T201529Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Short Talks by Postdoctoral Members
URL:https://www.ias.edu/math/events/short-talks-postdoctoral-members-629
END:VEVENT
BEGIN:VEVENT
UID:32306464-3738-4666-a236-313137373034
DTSTAMP:20231205T044449Z
CREATED:20230615T125626Z
DESCRIPTION:Topic: The Geometry of Polynomials in Algorithms\n\nSpeakers: N
athan Klein\n\nAffiliation: Member\, School of Mathematics
DTSTART:20231002T184000Z
DTEND:20231002T185500Z
LAST-MODIFIED:20231003T201447Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Short Talks by Postdoctoral Members
URL:https://www.ias.edu/math/events/short-talks-postdoctoral-members-630
END:VEVENT
BEGIN:VEVENT
UID:66356661-3432-4166-b565-353439303965
DTSTAMP:20231205T044449Z
CREATED:20230615T125704Z
DESCRIPTION:Topic: The Subspace Flatness Conjecture and Faster Integer Prog
ramming\n\nSpeakers: Victor Reis\n\nAffiliation: Member\, School of Mathem
atics
DTSTART:20231002T200000Z
DTEND:20231002T201500Z
LAST-MODIFIED:20231003T201409Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Short Talks by Postdoctoral Members
URL:https://www.ias.edu/math/events/short-talks-postdoctoral-members-631
END:VEVENT
BEGIN:VEVENT
UID:64376130-6139-4366-a565-333030393934
DTSTAMP:20231205T044449Z
CREATED:20230615T125827Z
DESCRIPTION:Topic: Moduli Stacks of p-adic Galois Representations\n\nSpeake
rs: Kalyani Kansal\n\nAffiliation: Member\, School of Mathematics
DTSTART:20231002T202000Z
DTEND:20231002T203500Z
LAST-MODIFIED:20231003T201341Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Short Talks by Postdoctoral Members
URL:https://www.ias.edu/math/events/short-talks-postdoctoral-members-632
END:VEVENT
BEGIN:VEVENT
UID:63303961-6262-4434-b438-623638643861
DTSTAMP:20231205T044449Z
CREATED:20230809T190328Z
DESCRIPTION:Topic: Learning from Dynamics\n\nSpeakers: Ankur Moitra\n\nLine
ar dynamical systems are the canonical model for time series data.\nThey h
ave wide-ranging applications and there is a vast literature on\nlearning
their parameters from input-output sequences. Moreover they\nhave received
renewed interest because of their connections to\nrecurrent neural networ
ks.\n\nBut there are wide gaps in our understanding. Existing works have o
nly\nasymptotic guarantees or else make restrictive assumptions\, e.g. tha
t\npreclude having any long-range correlations. In this work\, we give a\n
new algorithm based on the method of moments that is computationally\neffi
cient and works under essentially minimal assumptions. Our work\npoints to
several missed connections\, whereby tools from theoretical\nmachine lear
ning including tensor methods\, can be used in\nnon-stationary settings.
\n\nBased on joint work with Ainesh Bakshi\, Allen Liu\, and Morris Yau.
DTSTART:20231003T143000Z
DTEND:20231003T163000Z
LAST-MODIFIED:20231003T200922Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Computer Science/Discrete Mathematics Seminar II
URL:https://www.ias.edu/math/events/computer-sciencediscrete-mathematics-se
minar-ii-539
END:VEVENT
BEGIN:VEVENT
UID:32626530-6163-4537-a633-353162623761
DTSTAMP:20231205T044449Z
CREATED:20230712T191309Z
DESCRIPTION:The Bahcall Lunch follow the astrophysics colloquium lecture.\n
Registration is required by 6pm the previous Thursday so a meal can be\npr
ovided. Email Amanda at cenker@ias.edu with questions.
DTSTART:20231003T163000Z
DTEND:20231003T173000Z
LAST-MODIFIED:20230901T171048Z
LOCATION:Simons Hall Dilworth Room
SUMMARY:Institute for Advanced Study / Princeton University Bahcall Lunch
URL:https://www.ias.edu/sns/events/institute-advanced-study-princeton-unive
rsity-bahcall-lunch-48
END:VEVENT
BEGIN:VEVENT
UID:31616536-3665-4137-a133-396637626133
DTSTAMP:20231205T044449Z
CREATED:20230615T125955Z
DESCRIPTION:Topic: p-adic Local Systems and their Sen Operators\n\nSpeakers
: Tongmu He\n\nAffiliation: Member\, School of Mathematics
DTSTART:20231003T180000Z
DTEND:20231003T181500Z
LAST-MODIFIED:20231003T202015Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Short Talks by Postdoctoral Members
URL:https://www.ias.edu/math/events/short-talks-postdoctoral-members-634
END:VEVENT
BEGIN:VEVENT
UID:62656437-3264-4330-a237-376539363131
DTSTAMP:20231205T044449Z
CREATED:20230615T130019Z
DESCRIPTION:Topic: Uniqueness of Belief Propagation Fixed Point\n\nSpeakers
: Yuzhou Gu\n\nAffiliation: Member\, School of Mathematics
DTSTART:20231003T182000Z
DTEND:20231003T183500Z
LAST-MODIFIED:20231003T190917Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Short Talks by Postdoctoral Members
URL:https://www.ias.edu/math/events/short-talks-postdoctoral-members-635
END:VEVENT
BEGIN:VEVENT
UID:39393436-6439-4339-a235-303332633166
DTSTAMP:20231205T044449Z
CREATED:20230615T130047Z
DESCRIPTION:Topic: Homotopies Without Homotopy\n\nSpeakers: Toni Mikael Ann
ala\n\nAffiliation: Member\, School of Mathematics
DTSTART:20231003T184000Z
DTEND:20231003T185500Z
LAST-MODIFIED:20231003T191017Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Short Talks by Postdoctoral Members
URL:https://www.ias.edu/math/events/short-talks-postdoctoral-members-636
END:VEVENT
BEGIN:VEVENT
UID:36656432-6533-4731-b265-393665343963
DTSTAMP:20231205T044449Z
CREATED:20230615T130205Z
DESCRIPTION:Topic: p-adic Hodge Theory for Analytic Varieties\n\nSpeakers:
Sally Gilles\n\nAffiliation: Member\, School of Mathematics
DTSTART:20231003T200000Z
DTEND:20231003T201500Z
LAST-MODIFIED:20231003T203050Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Short Talks by Postdoctoral Members
URL:https://www.ias.edu/math/events/short-talks-postdoctoral-members-637
END:VEVENT
BEGIN:VEVENT
UID:65386233-6638-4134-a364-383234633130
DTSTAMP:20231205T044449Z
CREATED:20230615T130228Z
DESCRIPTION:Topic: Symmetries in Floer Homology\n\nSpeakers: Semon Kirillov
ich Rezchikov\n\nAffiliation: Veblen Research Instructor\, School of Mathe
matics
DTSTART:20231003T202000Z
DTEND:20231003T203500Z
LAST-MODIFIED:20231005T131537Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Short Talks by Postdoctoral Members
URL:https://www.ias.edu/math/events/short-talks-postdoctoral-members-638
END:VEVENT
BEGIN:VEVENT
UID:62643335-3465-4362-b830-376332333135
DTSTAMP:20231205T044449Z
CREATED:20230615T125854Z
DESCRIPTION:Topic: Minimal Slicings and Applications\n\nSpeakers: Sven Hirs
ch\n\nAffiliation: Member\, School of Mathematics
DTSTART:20231003T204000Z
DTEND:20231003T205500Z
LAST-MODIFIED:20231005T131732Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Short Talks by Postdoctoral Members
URL:https://www.ias.edu/math/events/short-talks-postdoctoral-members-633
END:VEVENT
BEGIN:VEVENT
UID:33663836-3961-4238-b361-636334613638
DTSTAMP:20231205T044449Z
CREATED:20230615T130444Z
DESCRIPTION:Topic: PCPs and Derandomized Agreement Tests\n\nSpeakers: Yotam
Dikstein\n\nAffiliation: Member\, School of Mathematics
DTSTART:20231004T180000Z
DTEND:20231004T181500Z
LAST-MODIFIED:20231005T131813Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Short Talks by Postdoctoral Members
URL:https://www.ias.edu/math/events/short-talks-postdoctoral-members-639
END:VEVENT
BEGIN:VEVENT
UID:39616532-3535-4266-b732-363764323937
DTSTAMP:20231205T044449Z
CREATED:20230615T130514Z
DESCRIPTION:Topic: Zero Sets of Solutions to Elliptic Equations\n\nSpeakers
: Stefano Decio\n\nAffiliation: Member\, School of Mathematics
DTSTART:20231004T182000Z
DTEND:20231004T183500Z
LAST-MODIFIED:20231005T131849Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Short Talks by Postdoctoral Members
URL:https://www.ias.edu/math/events/short-talks-postdoctoral-members-640
END:VEVENT
BEGIN:VEVENT
UID:33336333-3264-4231-b136-333931646233
DTSTAMP:20231205T044449Z
CREATED:20230615T124306Z
DESCRIPTION:Topic: Comparison Theorems in p-adic Geometry\n\nSpeakers: Eman
uel Reinecke\n\nAffiliation: Veblen Research Instructor\, School of Mathem
atics
DTSTART:20231004T184000Z
DTEND:20231004T185500Z
LAST-MODIFIED:20231005T131929Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Short Talks by Postdoctoral Members
URL:https://www.ias.edu/math/events/short-talks-postdoctoral-members-621
END:VEVENT
BEGIN:VEVENT
UID:31366536-3065-4632-a134-623033656361
DTSTAMP:20231205T044449Z
CREATED:20230615T130619Z
DESCRIPTION:Topic: Detecting Closed Orbits via Holomorphic Curves Measureme
nts\n\nSpeakers: Shira Tanny\n\nAffiliation: Member\, School of Mathematic
s
DTSTART:20231004T200000Z
DTEND:20231004T201500Z
LAST-MODIFIED:20231005T132308Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Short Talks by Postdoctoral Members
URL:https://www.ias.edu/math/events/short-talks-postdoctoral-members-642
END:VEVENT
BEGIN:VEVENT
UID:66386138-6666-4835-a563-643431386134
DTSTAMP:20231205T044449Z
CREATED:20230929T155455Z
DESCRIPTION:Topic: The Great Dimming of Betelgeuse: A Surface Mass Ejection
and its Consequences\n\nSpeakers: Andrea Dupree\n\nThis presentation exam
ines the behind-the-scenes details of the\ncreation of the heart of the JW
ST Observatory\, it’s mirrors. We\novercame many technical challenges\, in
cluding “Micro-Yield”\,\npitting and “edge-relief”\; not to mention that t
he particles we\ncreated in our grinding and polishing were toxic! The res
ulting mirror\nsegments exceeded their stringent requirements and represen
ted what we\nlike to call\, “the heart” of the world’s greatest of all spa
ce\nobservatories. The images and scientific data from the Webb are being
\nrevealed at an exciting pace and have “set the astronomical world on\nit
’s ear”\, challenging even the most fundamental theories\, like\nthe “Hubb
le Constant” and even the “Big Bang!” This story\ncannot be found anywhere
else\, enjoy.
DTSTART:20231004T200000Z
DTEND:20231004T211500Z
LAST-MODIFIED:20230929T155825Z
LOCATION:Virtual Meeting
SUMMARY:Princeton Plasma Physics Laboratory (PPPL) Colloquium
URL:https://www.ias.edu/sns/events/princeton-plasma-physics-laboratory-pppl
-colloquium-9
END:VEVENT
BEGIN:VEVENT
UID:36616261-3863-4431-a238-616565643036
DTSTAMP:20231205T044449Z
CREATED:20230615T130645Z
DESCRIPTION:Topic: On Wave Equations and Brownian Motion\n\nSpeakers: Bjoer
n Bringmann\n\nAffiliation: Member\, School of Mathematics
DTSTART:20231004T202000Z
DTEND:20231004T203500Z
LAST-MODIFIED:20231005T131619Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Short Talks by Postdoctoral Members
URL:https://www.ias.edu/math/events/short-talks-postdoctoral-members-643
END:VEVENT
BEGIN:VEVENT
UID:63643634-3939-4130-b332-326665383066
DTSTAMP:20231205T044449Z
CREATED:20230712T200817Z
DESCRIPTION:Topic: Dancing with the Black Holes: Spin Secrets of Merging Bi
naries\n\nSpeakers: Vishal Baibhav\n\nAffiliation: Peking University\n\n G
ravitational waves have uncovered a treasure trove of nearly 90\nmerging b
lack holes and neutron stars\, each with its own unique story\nto tell. In
this talk\, our focus centers on black hole spins\, seeking\nto decipher
the secrets hidden within\, including their origins\,\nhometowns\, and the
forces driving their mergers. We'll begin by\npeering into the heart of s
tar clusters\, where dynamical processes\ngive rise to second-generation (
2g) black holes and explore how their\nspins set them apart. These spins b
ecome a powerful tool for\nidentifying them\, and we discuss their signifi
cance in recent\ngravitational wave detections like GW190521 and GW190412.
Shifting\nfocus\, we will challenge the conventional belief that isolated
binary\nblack holes should have spins aligned with orbital angular moment
um.\nWe will explore mechanisms that can influence spins before and during
\nsupernovae\, leaving distinct imprints in observable spin\ndistributions
.
DTSTART:20231005T150000Z
DTEND:20231005T160000Z
LAST-MODIFIED:20231004T121407Z
LOCATION:Bloomberg Lecture Hall
SUMMARY:Institute for Advanced Study Astrophysics Seminar
URL:https://www.ias.edu/sns/events/institute-advanced-study-astrophysics-se
minar-76
END:VEVENT
BEGIN:VEVENT
UID:65343064-3836-4933-b061-316164326239
DTSTAMP:20231205T044449Z
CREATED:20230929T161428Z
DESCRIPTION:Topic: Using Supernovae to Study their Massive Star Progenitors
\n\nSpeakers: Azalee Kyra Bostroem\n\nAlthough massive stars have a profou
nd influence on the Universe at\nevery scale\, from the evolution of galax
ies to the formation of the\nelements necessary for life\, the answers to
key questions about their\nmass loss and explodability are unknown. This i
s because massive stars\nare rare and the final phases of their evolution
and explosions\, as\nsupernovae\, occur on very short time scales. Over th
e last 10 years\,\nwide-field surveys have greatly increased the number of
supernovae\ndiscovered\, with the potential to open a new window onto mas
sive star\nevolution if we can connect supernovae to their massive star\np
rogenitors. I will then present new insights we are gaining into\nmassive
stars including which stars explode\, how these stars lose\nmass\, and whi
ch stars are the progenitors of hydrogen-rich supernovae\nall derived from
recently developed post-explosion techniques\nincluding light curve model
ing\, spectral modeling\, and the combination\nof multi-wavelength observa
tions.
DTSTART:20231005T180000Z
DTEND:20231005T190000Z
LAST-MODIFIED:20230929T161725Z
LOCATION:Serin Hall Rm W330\, Rutgers and Zoom
SUMMARY:Rutgers University Astrophysics Seminar
URL:https://www.ias.edu/sns/events/rutgers-university-astrophysics-seminar-
30
END:VEVENT
BEGIN:VEVENT
UID:64363463-3865-4066-a433-326532663234
DTSTAMP:20231205T044449Z
CREATED:20230615T130757Z
DESCRIPTION:Topic: Drinfeld Modular Forms\n\nSpeakers: Liam Bradwin Baker\n
\nAffiliation: Member\, School of Mathematics
DTSTART:20231005T180000Z
DTEND:20231005T181500Z
LAST-MODIFIED:20231005T130532Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Short Talks by Postdoctoral Members
URL:https://www.ias.edu/math/events/short-talks-postdoctoral-members-644
END:VEVENT
BEGIN:VEVENT
UID:65366165-3133-4664-a436-376163623432
DTSTAMP:20231205T044449Z
CREATED:20230615T130822Z
DESCRIPTION:Topic: Non-Archimedean Harmonic Analysis\n\nSpeakers: Bodan Ars
ovski\n\nAffiliation: Member\, School of Mathematics
DTSTART:20231005T182000Z
DTEND:20231005T183500Z
LAST-MODIFIED:20231005T130601Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Short Talks by Postdoctoral Members
URL:https://www.ias.edu/math/events/short-talks-postdoctoral-members-645
END:VEVENT
BEGIN:VEVENT
UID:34636132-6331-4465-a136-303133653934
DTSTAMP:20231205T044449Z
CREATED:20230615T130912Z
DESCRIPTION:Topic: Localizing Invariants in Adic Geometry\n\nSpeakers: Grig
ory Andreychev\n\nAffiliation: Member\, School of Mathematics
DTSTART:20231005T184000Z
DTEND:20231005T185500Z
LAST-MODIFIED:20231005T130631Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Short Talks by Postdoctoral Members
URL:https://www.ias.edu/math/events/short-talks-postdoctoral-members-646
END:VEVENT
BEGIN:VEVENT
UID:35323364-3264-4636-b636-373736666162
DTSTAMP:20231205T044449Z
CREATED:20231005T192219Z
DESCRIPTION:Topic: Polynomial Identity Testing\n\nSpeakers: Robert Andrews
\n\nAffiliation: Member\, School of Mathematics
DTSTART:20231005T200000Z
DTEND:20231005T201500Z
LAST-MODIFIED:20231005T192354Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Short Talks by Postdoctoral Members
URL:https://www.ias.edu/math/events/short-talks-postdoctoral-members-648
END:VEVENT
BEGIN:VEVENT
UID:62333631-3635-4038-a364-343635313738
DTSTAMP:20231205T044449Z
CREATED:20230615T125327Z
DESCRIPTION:Topic: Singularities in Minimal Submanifolds\n\nSpeakers: Paul
Minter\n\nAffiliation: Veblen Fellow\, School of Mathematics
DTSTART:20231005T202000Z
DTEND:20231005T203500Z
LAST-MODIFIED:20231005T131530Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Short Talks by Postdoctoral Members
URL:https://www.ias.edu/math/events/short-talks-postdoctoral-members-626
END:VEVENT
BEGIN:VEVENT
UID:65356630-3239-4832-b937-363835393935
DTSTAMP:20231205T044449Z
CREATED:20230928T125018Z
DESCRIPTION:Topic: Integral Points On The Clebsch-Klein Surfaces\n\nSpeaker
s: Rafael von Känel\n\nIn this talk we present explicit bounds for the Wei
l height and the\nnumber of integral points on classical surfaces first st
udied by\nClebsch (1871) and Klein (1873). Building on Hirzebruch's work i
n\nwhich he related these surfaces to a Hilbert modular surface\, we\ndedu
ced our bounds from a general result for integral points on coarse\nHilber
t moduli schemes. After explaining this deduction\, we discuss\nthe strate
gy of proof of the general result which combines the method\nof Faltings (
Arakelov\, Parsin\, Szpiro) with modularity\,\nMasser-Wuestholz isogeny es
timates\, and results based on effective\nanalytic estimates and/or Arakel
ov theory. Joint work with Arno\nKret.
DTSTART:20231005T203000Z
DTEND:20231005T213000Z
LAST-MODIFIED:20231004T184034Z
LOCATION:Fine Hall 214\, Princeton University
SUMMARY:Joint PU/IAS Number Theory
URL:https://www.ias.edu/math/events/joint-puias-number-theory-11
END:VEVENT
BEGIN:VEVENT
UID:36663938-3230-4530-b334-633165336136
DTSTAMP:20231205T044449Z
CREATED:20230929T162535Z
DESCRIPTION:Topic: News from phase space: universal equilibria\, constant-f
lux cascades\, and enduring mysteries\n\nSpeakers: Alex Schekochihin
DTSTART:20231006T160000Z
DTEND:20231006T170000Z
LAST-MODIFIED:20231003T170026Z
LOCATION:Dome Room\, Peyton Hall or Zoom
SUMMARY:Princeton University Astroplasmas Seminar
URL:https://www.ias.edu/sns/events/princeton-university-astroplasmas-semina
r-53
END:VEVENT
BEGIN:VEVENT
UID:62366561-3830-4230-b161-343631663538
DTSTAMP:20231205T044449Z
CREATED:20230809T153130Z
DESCRIPTION:Topic: What is Combinatorial Discrepancy?\n\nSpeakers: Peng Zha
ng\n\nCombinatorial discrepancy asks the following question: Given a groun
d\nset U and a collection S of subsets of U\, how do we color each element
\nin U red or blue so that each subset in S has almost an equal number\nof
each color? A straightforward idea is to color everyone uniformly\nand in
dependently at random. Our goal is to improve upon this simple\nrandom col
oring. In this talk\, we will introduce some basics of\ncombinatorial disc
repancy\, present a simple algorithm\, and discuss\nsome applications.
DTSTART:20231006T170000Z
DTEND:20231006T180000Z
LAST-MODIFIED:20231120T144629Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:What is...?
URL:https://www.ias.edu/math/events/what-11
END:VEVENT
BEGIN:VEVENT
UID:31306164-6664-4165-a461-333632663039
DTSTAMP:20231205T044449Z
CREATED:20230926T133635Z
DESCRIPTION:Topic: Condensed Sets\n\nSpeakers: Steven Jin\n\nSteven will co
ver the material from the first two lectures by Peter\nScholze (available
electronically at\nhttp://people.mpim-bonn.mpg.de/scholze/Condensed.pdf).
In particular\,\nhe will introduce the notion of condensed set and condens
ed abelian\ngroup.
DTSTART:20231006T183000Z
DTEND:20231006T203000Z
LAST-MODIFIED:20231004T123307Z
LOCATION:Princeton University\, Fine Hall 314
SUMMARY:Condensed Learning Seminar
URL:https://www.ias.edu/math/events/condensed-learning-seminar-9
END:VEVENT
BEGIN:VEVENT
UID:62653262-6637-4661-a432-633731343435
DTSTAMP:20231205T044449Z
CREATED:20230908T141718Z
DESCRIPTION:Topic: Globular Clusters\n\nSpeakers: Madeleine McKenzie\n\nEac
h week\, we hold a relatively informal seminar/discussion series\nwith an
emphasis on extra-galactic and large-scale structure\nastrophysics.\n\nDur
ing Galread a leader/visitor presents a recent paper to the\ndiscussion gr
oup. The PDF of the paper is projected onto a large\nscreen\, and a guest
explains the paper\, section by section\, in greater\ndetail than may be e
xplained within the text of the article. To aid\nwith discussion\, only th
e article PDF is presented -- no\npowerpoint-style slides. Galread discuss
ions are very friendly and\ninteractive.
DTSTART:20231009T150000Z
DTEND:20231009T160000Z
LAST-MODIFIED:20230908T141812Z
LOCATION:Zoom and Peyton Hall\, Grand Central
SUMMARY:Princeton University Galread [Galactic/Extragalactic Reading Group]
URL:https://www.ias.edu/sns/events/princeton-university-galread-galacticext
ragalactic-reading-group-77
END:VEVENT
BEGIN:VEVENT
UID:62353135-3730-4339-b532-633365306433
DTSTAMP:20231205T044449Z
CREATED:20231009T120647Z
DESCRIPTION:Topic: Private Optimization and Statistical Physics: Low-Rank M
atrix Approximation\n\nSpeakers: Nisheeth Vishnoi\n\nIn this talk\, I will
present the following two connections between\nprivate optimization and s
tatistical physics\, both via the problem of\napproximating a given covari
ance matrix with a low-rank matrix:\n\n * An efficient algorithm to privat
ely compute a low-rank\napproximation to a given matrix and how it leads t
o an efficient way\nto sample from Harish-Chandra-Itzykson-Zuber densities
studied in\nphysics and mathematics. (Based on https://arxiv.org/abs/2011
.05417)\n * A new way to analyze the 'utility' of the 'Gaussian Mechanism'
for\nprivate low-rank approximation using Dyson Brownian motion and how i
t\nleads to new eigenvalue gap bounds for random matrices. (Based on\nhttp
s://arxiv.org/abs/2211.06418 and https://arxiv.org/abs/2306.16648)
DTSTART:20231009T151500Z
DTEND:20231009T161500Z
LAST-MODIFIED:20231102T172940Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Computer Science/Discrete Mathematics Seminar I
URL:https://www.ias.edu/math/events/computer-sciencediscrete-mathematics-se
minar-i-556
END:VEVENT
BEGIN:VEVENT
UID:37636266-3836-4636-b565-346263336535
DTSTAMP:20231205T044449Z
CREATED:20230908T163432Z
DESCRIPTION:Topic: A Linearized Approach to Radial Velocity Extraction\n\nS
peakers: Sahar Shahaf\n\nHigh-precision radial velocity measurements are c
rucial for exoplanet\ndetection and characterization. Efforts to improve t
he precision have\nbeen made over the recent decades\, with significant ad
vancements in\ninstrumentation\, data reduction techniques\, and statistic
al inference\nmethods. However\, despite these efforts\, RV precision exce
eds the\nexpected instrumental noise floor\, largely due to parasitic sign
als\ninduced by stellar variability. This talk will propose a factorizatio
n\nmethod to overcome this limitation. This factorization is particularly
\nsuitable for controlling the effect of localized changes in the\nstellar
emission profile\, assuming some smooth function of a few\nastrophysical
parameters governs them. The velocities are inferred\nusing short-time Fou
rier transforms in a procedure equivalent to\nleast-squares minimization i
n the wavelength domain. I will outline\nthe method's potential\, present
the proof-of-concept tests conducted\nthus far\, and discuss its underlyin
g assumptions and challenges ahead.
DTSTART:20231009T160000Z
DTEND:20231009T170000Z
LAST-MODIFIED:20231006T134015Z
LOCATION:Zoom and Peyton Dome Rm\, Princeton University
SUMMARY:Princeton University Extrasolar Planet Discussion Group
URL:https://www.ias.edu/sns/events/princeton-university-extrasolar-planet-d
iscussion-group-89
END:VEVENT
BEGIN:VEVENT
UID:37393865-6137-4964-a564-326135373139
DTSTAMP:20231205T044449Z
CREATED:20230922T140213Z
DESCRIPTION:Topic: X-ray -- cosmic shear cross-correlations: first detectio
n and constraints on baryonic effects\n\nSpeakers: Tassia Ferreira
DTSTART:20231009T163000Z
DTEND:20231009T180000Z
LAST-MODIFIED:20231006T141441Z
LOCATION:IAS\, West Seminar Room
SUMMARY:Institute for Advanced Study/Princeton University Early Universe/Co
smology Lunch Discussion
URL:https://www.ias.edu/sns/events/institute-advanced-studyprinceton-univer
sity-early-universecosmology-lunch-discussion-61
END:VEVENT
BEGIN:VEVENT
UID:66373262-6439-4462-b437-313062623735
DTSTAMP:20231205T044449Z
CREATED:20230809T143356Z
DESCRIPTION:Topic: What is... $p$-adic geometry?\n\nSpeakers: Jacob Lurie\n
\nLet $p$ be a prime number. Roughly speaking\, rigid analytic geometry\ni
s a counterpart of complex analysis where one replaces the field\n$\mathbf
{C}$ of complex numbers by the field $\mathbf{Q}_{p}$ of\n$p$-adic rationa
l numbers (or some extension thereof).\n\nIn this talk\, I'll try to expla
in some of the motivations which led to\nthe development of this theory\,
and to give some flavor of the recent\nprogress which make it a timely sub
ject for our Special Year. No prior\nknowledge of $p$-adic geometry will b
e assumed.
DTSTART:20231009T180000Z
DTEND:20231009T190000Z
LAST-MODIFIED:20231009T123552Z
LOCATION:Simonyi 101
SUMMARY:Members' Colloquium
URL:https://www.ias.edu/math/events/members-colloquium-51
END:VEVENT
BEGIN:VEVENT
UID:31326165-3031-4263-b235-353635376366
DTSTAMP:20231205T044449Z
CREATED:20231006T135223Z
DESCRIPTION:Topic: Enabling precision photometric SN Ia cosmology with mach
ine learning\n\nSpeakers: Helen Qu\n\nThe discovery of the accelerating ex
pansion of the universe has led to\nincreasing interest in probing the nat
ure of dark energy. As very\nbright standardizable candles\, type Ia super
novae (SNe Ia) are used to\nmeasure precise distances on cosmological scal
es and thus have been\ninstrumental to this effort. Building a robust data
set of SNe Ia\nacross a wide range of redshifts will allow for the constru
ction of an\naccurate Hubble diagram\, enrich our understanding of the exp
ansion\nhistory of the universe\, as well as place constraints on the dark
\nenergy equation of state. However\, much of our analysis pipeline will\n
be overwhelmed by the data deluge of the LSST era. In this talk\, I\nwill
present recent improvements on two key pieces of SN Ia cosmology\nanalysis
: the purity of the photometric SNe Ia sample and the redshift\nidentifica
tion accuracy for these SNe. To address the SNe Ia purity\nproblem\, I wil
l present SCONE (Supernova Classification with a\nConvolutional Neural Net
work)\, a deep learning-based approach to early\nand full lightcurve photo
metric SN classification. On the redshift\nestimation front\, I will prese
nt work on characterizing inaccurate\nredshifts due to SN host galaxy mism
atch and its effect on cosmology\,\nas well as Photo-zSNthesis\, a machine
learning algorithm that uses SN\nphotometry to directly estimate redshift
. As long as logistical\nchallenges prevent the spectroscopic follow-up of
most detected SNe\, a\nreliable photometric SN classification algorithm a
nd redshift\nestimation strategy will allow us to tap into the vast potent
ial of\nthe photometric dataset.
DTSTART:20231009T180000Z
DTEND:20231009T190000Z
LAST-MODIFIED:20231006T135323Z
LOCATION:Zoom and Peyton 025
SUMMARY:Princeton University Survey Science Discussion
URL:https://www.ias.edu/sns/events/princeton-university-survey-science-disc
ussion-0
END:VEVENT
BEGIN:VEVENT
UID:36326463-6261-4835-b034-653238653262
DTSTAMP:20231205T044449Z
CREATED:20230811T153218Z
DESCRIPTION:Topic: Irregular Loci in the Emerton-Gee Stack for GL2\n\nSpeak
ers: Kalyani Kansal\n\nLet K be a finite extension of Qp. The Emerton-Gee
stack for GL2 is a\nstack of etale (phi\, Gamma)-modules of rank two. Its
reduced part\, X\,\nis an algebraic stack of finite type over a finite fie
ld\, and can be\nviewed as a moduli stack of two dimensional mod p represe
ntations of\nthe absolute Galois group of K. By the work of Caraiani\, Eme
rton\, Gee\nand Savitt\, it is known that in most cases\, the locus of mod
p\nrepresentations admitting crystalline lifts with specified regular\nHo
dge-Tate weights is an irreducible component of X. Their work relied\non a
detailed study of a closely related stack of etale phi-modules\nwhich adm
its a map from a stack of Breuil-Kisin modules with descent\ndata. In our
work\, we assume K is unramfied and further study this map\nwith a view to
studying the loci of mod p representations admitting\ncrystalline lifts w
ith small\, irregular Hodge-Tate weights. We\nidentify these loci as image
s of certain irreducible components of the\nstack of Breuil-Kisin modules
and obtain several inclusions of the\nnon-regular loci into the irreducibl
e components of X. This is joint\nwork with Rebecca Bellovin\, Neelima Bor
ade\, Anton Hilado\, Heejong Lee\,\nBrandon Levin\, David Savitt and Hanne
ke Wiersema.
DTSTART:20231009T193000Z
DTEND:20231009T203000Z
LAST-MODIFIED:20231101T150118Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Joint IAS/Princeton Arithmetic Geometry Seminar
URL:https://www.ias.edu/math/events/joint-iasprinceton-arithmetic-geometry-
seminar-4
END:VEVENT
BEGIN:VEVENT
UID:63656562-3231-4734-b161-653034323436
DTSTAMP:20231205T044449Z
CREATED:20230809T190440Z
DESCRIPTION:Topic: Shrinkage Under Random Restrictions\n\nSpeakers: Robert
Andrews\n\nRandom restrictions are a powerful tool used to study the compl
exity\nof boolean functions. Various classes of boolean circuits are known
to\nsimplify under random restrictions. A prime example of this\,\ndiscov
ered by Subbotovskaya more than 60 years ago\, is the fact that\nboolean f
ormulas over the {and\, or\, not} basis shrink in size when the\ninputs ar
e randomly restricted. Shrinkage can be used to prove worst-\nand average-
case lower bounds\, construct explicit pseudorandom\ngenerators\, and desi
gn satisfiability algorithms. This talk will\nsurvey what is known about s
hrinkage and its applications to formula\nlower bounds and pseudorandomnes
s. We will also discuss an analogue of\nshrinkage in the setting of algebr
aic formulas.
DTSTART:20231010T143000Z
DTEND:20231010T163000Z
LAST-MODIFIED:20231102T173014Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Computer Science/Discrete Mathematics Seminar II
URL:https://www.ias.edu/math/events/computer-sciencediscrete-mathematics-se
minar-ii-540
END:VEVENT
BEGIN:VEVENT
UID:35363630-6431-4163-a338-326534336230
DTSTAMP:20231205T044449Z
CREATED:20230712T191350Z
DESCRIPTION:The Bahcall Lunch follow the astrophysics colloquium lecture.\n
Registration is required by 6pm the previous Thursday so a meal can be\npr
ovided. Email Amanda at cenker@ias.edu with questions.
DTSTART:20231010T163000Z
DTEND:20231010T173000Z
LAST-MODIFIED:20230901T171113Z
LOCATION:Simons Hall Dilworth Room
SUMMARY:Institute for Advanced Study / Princeton University Bahcall Lunch
URL:https://www.ias.edu/sns/events/institute-advanced-study-princeton-unive
rsity-bahcall-lunch-49
END:VEVENT
BEGIN:VEVENT
UID:38353463-3537-4435-a334-626563303233
DTSTAMP:20231205T044449Z
CREATED:20231006T140518Z
DESCRIPTION:Topic: The Yerkes Observatory and the 40-inch Refractor\n\nSpea
kers: John Church & Michael DiMario
DTSTART:20231010T233000Z
DTEND:20231011T013000Z
LAST-MODIFIED:20231006T140626Z
LOCATION:Peyton Hall & Zoom
SUMMARY:Amateur Astronomers Association of Princeton (AAAP) Monthly Meeting
URL:https://www.ias.edu/sns/events/amateur-astronomers-association-princeto
n-aaap-monthly-meeting-23
END:VEVENT
BEGIN:VEVENT
UID:30393030-3834-4136-a633-333338663663
DTSTAMP:20231205T044449Z
CREATED:20230915T182350Z
DESCRIPTION:Topic: Prismatic F-gauges and Fontaine-Laffaille Modules\n\nSpe
akers: Vadim Vologodsky\n\nWith every bounded prism Bhatt and Scholze asso
ciated a cohomology\ntheory of formal _p_-adic schemes. The prismatic coho
mology comes\nequipped with the Nygaard filtration and the Frobenius endom
orphism.\nThe Bhatt-Scholze construction has been advanced further by Drin
feld\nand Bhatt-Lurie who constructed a cohomology theory with values in a
\nstable infinity-category of prismatic F-gauges. The new cohomology\ntheo
ry is universal\, meaning that\, for every bounded prism\, the\nassociated
prismatic cohomology theory factors through the category of\nprismatic F-
gauges.\n\nIn this talk\, I will explain how a full subcategory of the cat
egory of\nprismatic F-gauges formed by objects whose Hodge-Tate weights li
e in\nthe interval [0\,p-2] is equivalent to the derived category of\nFont
aine-Laffaille modules with a similar weight constraint. In the\ngeometric
context\, this means that the prismatic F-gauge associated\nwith a formal
ly smooth scheme over _p_-adic integers of dimension <\np-1 can be recover
ed from its Hodge filtered de Rham cohomology\nequipped with the Nygaard r
efined crystalline Frobenius endomorphism.\n\nIf time permits\, I will exp
lain a generalization of the above\nstatement to the case of prismatic F-g
auges over a smooth _p_-adic\nformal scheme.\n\nThe talk is based on a joi
nt work with Gleb Terentiuk and Yujie Xu.
DTSTART:20231011T180000Z
DTEND:20231011T190000Z
LAST-MODIFIED:20231120T153429Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Special Year Seminar
URL:https://www.ias.edu/math/events/special-year-seminar
END:VEVENT
BEGIN:VEVENT
UID:31656636-3037-4536-b538-333965346338
DTSTAMP:20231205T044450Z
CREATED:20230810T185411Z
DESCRIPTION:Topic: Gardner's Touching Cubes Problem\n\nSpeakers: Liam Bradw
in Baker\n\nIn 1971\, Martin Gardner proposed a deceptively simple problem
about\n'kissing cubes' in his Mathematical Games column in the Scientific
\nAmerican\, and more than three decades later it is still unsolved. In\nt
his talk I will introduce the problem\, the progress made so far on\nit\,
as well as some progress I've made recently.
DTSTART:20231011T220000Z
DTEND:20231012T000000Z
LAST-MODIFIED:20231005T175054Z
LOCATION:Simons Hall Dilworth Room
SUMMARY:Mathematical Conversations
URL:https://www.ias.edu/math/events/mathematical-conversations-262
END:VEVENT
BEGIN:VEVENT
UID:37663536-6462-4034-b833-633035353962
DTSTAMP:20231205T044450Z
CREATED:20230921T183216Z
DESCRIPTION:Topic: The Hodge-Tate Sequence\n\nSpeakers: Kalyani Kansal
DTSTART:20231012T140000Z
DTEND:20231012T160000Z
LAST-MODIFIED:20231120T153500Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Special Year Learning Seminar
URL:https://www.ias.edu/math/events/special-year-learning-seminar-14
END:VEVENT
BEGIN:VEVENT
UID:30323462-6632-4435-a239-353236646236
DTSTAMP:20231205T044450Z
CREATED:20230712T201911Z
DESCRIPTION:Topic: Unraveling Particle Acceleration and the Nonthermal Univ
erse\n\nSpeakers: Rebecca Rimai Diesing\n\nInterpreting observations of ex
treme astrophysical phenomena requires\na detailed understanding of partic
le acceleration in astrophysical\nenvironments. These accelerated particle
s\, known as cosmic rays\,\napproximately follow a power-law distribution
spanning more than ten\norders of magnitude in energy\, produce observable
nonthermal emission\nthat extends from radio to gamma rays\, and are a so
urce of cosmic\nneutrinos. In the standard picture\, supernova remnants an
d other\nastrophysical shocks accelerate Galactic cosmic rays via diffusiv
e\nshock acceleration. However\, both the multiwavelength emission from\ns
upernova remnants and the population of Galactic cosmic rays detected\nat
Earth reveal discrepancies between this standard theory and\nobservations.
In this seminar I will review the current paradigm of\nshock acceleration
and present a fast\, multi-zone modeling framework\nthat self-consistentl
y incorporates findings from state-of-the-art\nkinetic simulations. I will
show how this model can resolve key\ntensions between theory and observat
ions and make predictions for\nmulti-messenger observations. In particular
\, I will apply this model\nto a variety of astrophysical objects\, includ
ing supernova remnants\,\nnovae\, and winds launched by active galactic nu
clei.
DTSTART:20231012T150000Z
DTEND:20231012T160000Z
LAST-MODIFIED:20231006T141327Z
LOCATION:Bloomberg Lecture Hall
SUMMARY:Institute for Advanced Study Astrophysics Seminar
URL:https://www.ias.edu/sns/events/institute-advanced-study-astrophysics-se
minar-79
END:VEVENT
BEGIN:VEVENT
UID:65353065-3464-4034-a461-393963633631
DTSTAMP:20231205T044450Z
CREATED:20230809T151358Z
DESCRIPTION:Topic: TBD
DTSTART:20231012T190000Z
DTEND:20231012T200000Z
LAST-MODIFIED:20231002T193524Z
LOCATION:Simonyi 101
SUMMARY:Number Theory Learning Seminar
URL:https://www.ias.edu/math/events/number-theory-learning-seminar
END:VEVENT
BEGIN:VEVENT
UID:37396136-3461-4439-b839-633664393139
DTSTAMP:20231205T044450Z
CREATED:20230817T141257Z
DESCRIPTION:Topic: Modularity of Trianguline Galois Representations\n\nSpea
kers: Rebecca Bellovin\n\nThe Fontaine-Mazur conjecture (proved by Kisin a
nd Emerton) says that\n(under certain technical hypotheses) a Galois repre
sentation\n$\rho:Gal_Q\rightarrow GL_2(\overline{Q}_p)$ is modular if it i
s\nunramified outside finitely many places and de Rham at p. I will talk\n
about what this means\, and I will discuss an analogous modularity\nresult
for Galois representations $\rho:Gal_Q\rightarrow GL_2(L)$ when\nL is ins
tead a non-archimedean local field of characteristic p.
DTSTART:20231012T203000Z
DTEND:20231012T213000Z
LAST-MODIFIED:20231013T124103Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Joint PU/IAS Number Theory
URL:https://www.ias.edu/math/events/joint-puias-number-theory-5
END:VEVENT
BEGIN:VEVENT
UID:63646263-3439-4462-b461-666238396633
DTSTAMP:20231205T044450Z
CREATED:20230810T191817Z
DESCRIPTION:Topic: Symplectic Cohomology Relative to a Smooth Divisor\n\nSp
eakers: Paul Seidel\n\n(This is a somewhat old-fashioned talk.) I will rev
iew the definition\nof symplectic cohomology and its deformation\, for the
complement of a\nsmooth anticanonical divisor in a monotone symplectic ma
nifold. The\ndeformed group\, with the parameter q inverted\, has been the
subject of\nextensive work by Borman-Sheridan-Varolgunes\, but there are
additional\naspects that are as yet not fully understood.
DTSTART:20231013T131500Z
DTEND:20231013T144500Z
LAST-MODIFIED:20231013T132522Z
LOCATION:Remote Access
SUMMARY:Joint IAS/Princeton/Montreal/Paris/Tel-Aviv Symplectic Geometry Zoo
minar
URL:https://www.ias.edu/math/events/joint-iasprincetonmontrealparistel-aviv
-symplectic-geometry-zoominar-125
END:VEVENT
BEGIN:VEVENT
UID:63363035-6362-4534-a537-393235663763
DTSTAMP:20231205T044450Z
CREATED:20231204T141152Z
DESCRIPTION:Topic: Coherent Phenomena in Relativistic Astrophysical Plasmas
\n\nSpeakers: Alexander Chernoglazov\n\nIn this talk\, I will focus on the
emission signatures we can expect\nfrom magnetospheres of compact objects
\, with a strong focus on\npulsars. In the first part of the talk\, I will
describe the evolution\nof a three-dimensional collisionless reconnecting
relativistic current\nsheet with strong synchrotron cooling. I will discu
ss the acceleration\nmechanisms that play the most important role\, and ho
w their\ncontributions vary with the efficiency of the synchrotron cooling
. I\nwill also present the expected signatures of gamma-ray emission\, e.g
.\,\nits spectrum and anisotropy. These results will be (tentatively)\napp
lied to the recently observed TeV-emission from the Vela pulsar. In\nthe s
econd part of my talk\, I will describe the 2D and 3D models of\nthe polar
pair production discharge. These new multi-dimensional\nmodels will help
to understand how pulsar radio emission is produced\,\nand the mechanisms
behind its variability.
DTSTART:20231013T163000Z
DTEND:20231013T173000Z
LAST-MODIFIED:20231204T141318Z
LOCATION:Dome Room\, Peyton Hall or Zoom
SUMMARY:Princeton University Astroplasmas Seminar
URL:https://www.ias.edu/sns/events/princeton-university-astroplasmas-semina
r-60
END:VEVENT
BEGIN:VEVENT
UID:30373766-6534-4237-b534-323336656337
DTSTAMP:20231205T044450Z
CREATED:20231006T142414Z
DESCRIPTION:Topic: General Discussion
DTSTART:20231013T163000Z
DTEND:20231013T173000Z
LAST-MODIFIED:20231006T143945Z
LOCATION:Dome Room\, Peyton Hall or Zoom
SUMMARY:Princeton University Astroplasmas Seminar
URL:https://www.ias.edu/sns/events/princeton-university-astroplasmas-semina
r-54
END:VEVENT
BEGIN:VEVENT
UID:31323862-6461-4264-a532-353966643135
DTSTAMP:20231205T044450Z
CREATED:20231004T151049Z
DESCRIPTION:Topic: Branched Optimal Transport\n\nSpeakers: Annalisa Massacc
esi
DTSTART:20231013T170000Z
DTEND:20231013T180000Z
LAST-MODIFIED:20231120T144609Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:What is...?
URL:https://www.ias.edu/math/events/what-12
END:VEVENT
BEGIN:VEVENT
UID:32373965-3134-4264-b763-343163636432
DTSTAMP:20231205T044450Z
CREATED:20230809T194055Z
DESCRIPTION:Topic: Condensed Sets 2\n\nSpeakers: Longke Tang
DTSTART:20231013T183000Z
DTEND:20231013T203000Z
LAST-MODIFIED:20231004T123525Z
LOCATION:Fine 401\, Princeton University
SUMMARY:Condensed Learning Seminar
URL:https://www.ias.edu/math/events/condensed-learning-seminar
END:VEVENT
BEGIN:VEVENT
UID:63393165-3962-4032-b064-393739353065
DTSTAMP:20231205T044450Z
CREATED:20230928T143138Z
DESCRIPTION:Topic: On the Long-Time Behavior of Solutions to the 2d Euler E
quation\n\nSpeakers: Tarek Elgindi\n\nWe will describe a recent result on
the stability of twisting in 2d\nHamiltonian flows and its application to
various questions concerning\nthe long-time behavior of 2d Euler solutions
. We will look at\nstability properties of stationary solutions\, filament
ation and the\ngrowth of Sobolev norms\, and wandering.
DTSTART:20231013T183000Z
DTEND:20231013T193000Z
LAST-MODIFIED:20231010T155008Z
LOCATION:Princeton University\, Fine Hall 314
SUMMARY:Joint IAS/PU Analysis Seminar
URL:https://www.ias.edu/math/events/joint-iaspu-analysis-seminar-3
END:VEVENT
BEGIN:VEVENT
UID:63353163-3638-4034-b666-323038386564
DTSTAMP:20231205T044450Z
CREATED:20230925T130402Z
DESCRIPTION:Topic: Immortal Solutions of the Kähler-Ricci Flow\n\nSpeakers:
Valentino Tosatti\n\nI will discuss the problem of understanding the long
-time behavior of\nRicci flow on a compact Kähler manifold\, assuming that
a solution\nexists for all positive time. Inspired by an analogy with the
minimal\nmodel program in algebraic geometry\, Song and Tian posed severa
l\nconjectures which describe this behavior. I will report on recent work
\n(joint with Hein and Lee) which confirms these conjectures.
DTSTART:20231013T200000Z
DTEND:20231013T210000Z
LAST-MODIFIED:20230929T174836Z
LOCATION:Princeton University\, Fine Hall 314
SUMMARY:Joint IAS/PU Analysis Seminar
URL:https://www.ias.edu/math/events/joint-iaspu-analysis-seminar-1
END:VEVENT
BEGIN:VEVENT
UID:38633634-3165-4339-b762-356339663533
DTSTAMP:20231205T044450Z
CREATED:20230809T185840Z
DESCRIPTION:Topic: A Combinatorial Characterization of Minimax in 0/1 Games
\n\nSpeakers: Shay Moran\n\nWe will discuss a generalization of the celebr
ated Minimax Theorem\n(von Neumann\, 1928) for binary zero-sum games. A si
mple game which\nfails to satisfy Minimax is Ephraim Kishon's “Jewish Poke
r” (see\n[1\,2] below). In this game\, each player picks a number and the
larger\nnumber wins. The payoff matrix in this game is *infinite triangula
r*.\nWe show this is the only obstruction: if a game does not contain\ntri
angular submatrices of unbounded sizes then the Minimax Theorem\nholds. Th
is generalizes von Neumann's Minimax Theorem by removing\nrequirements of
finiteness or compactness.\n\n * http://www.ephraimkishon.de/en/my_favorit
e_stories.htm (english)\n *\nhttps://gesherfilmfund.org.il/documents/מקבץ%
20יצירות%20%20-%20אפרים%20…\n[https://gesherfilmfund.org.il/documents/%D7%
9E%D7%A7%D7%91%D7%A5%20%D7%99%D7%A6%D7%99%D7%A8%D7%95%D7%AA%20%20-%20%D7%9
0%D7%A4%D7%A8%D7%99%D7%9D%20%D7%A7%D7%99%D7%A9%D7%95%D7%9F.pdf]\n(hebrew\,
third story)
DTSTART:20231016T151500Z
DTEND:20231016T161500Z
LAST-MODIFIED:20231102T173041Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Computer Science/Discrete Mathematics Seminar I
URL:https://www.ias.edu/math/events/computer-sciencediscrete-mathematics-se
minar-i-548
END:VEVENT
BEGIN:VEVENT
UID:31383861-3135-4433-a264-666166386465
DTSTAMP:20231205T044450Z
CREATED:20230908T164251Z
DESCRIPTION:Topic: Giants Transiting Giants: Revealing planet demographics
of post-main sequence systems\n\nSpeakers: Sam Grunblatt\n\nDespite the th
ousands of planets discovered orbiting stars on the main\nsequence\, the p
lanetary systems of more evolved stars remain poorly\nunderstood. Studying
planetary systems around subgiant and red giant\nstars can reveal how pla
netary systems respond to stellar evolution at\nthe end of their life cycl
e. Over the last 5 years\, the 'Giants\nTransiting Giants' survey has incr
eased the number of planets known to\nbe transiting evolved stars by a fac
tor of three. These planetary\nsystems provide testbeds for understanding
planet inflation\, orbital\nalignment\, decay\, and chaotic disruption\, p
lanet engulfment and\nrelated chemical enhancement of host stars. Recent s
tudies have\nrevealed that the orbital configurations of these systems dif
fer from\nthose of main sequence systems--planets around evolved stars see
m to\nfollow unique period-eccentricity and orbital alignment trends that
\nare not seen in main sequence systems. Furthermore\, the discovery of a
\nlow-density hot Neptune around a red giant star suggests that these\npla
nets are more resilient to atmospheric erosion than previously\nthought. C
urrently proposed studies of these and similar systems with\nJWST and new
ground-based facilities will reveal how planet\natmospheres respond to the
evolution of their host stars in the next\nfew years\, and future mission
s like Roman will identify thousands of\nthese systems and revolutionize e
volved system demographics in the\nupcoming decade.
DTSTART:20231016T160000Z
DTEND:20231016T170000Z
LAST-MODIFIED:20231013T165839Z
LOCATION:Zoom and Peyton Dome Rm\, Princeton University
SUMMARY:Princeton University Extrasolar Planet Discussion Group
URL:https://www.ias.edu/sns/events/princeton-university-extrasolar-planet-d
iscussion-group-90
END:VEVENT
BEGIN:VEVENT
UID:66643462-3931-4565-a431-623134306637
DTSTAMP:20231205T044450Z
CREATED:20230810T193516Z
DESCRIPTION:Topic: Fixed Points of Small Hamiltonian diffeomorphisms and th
e Flux Conjectures\n\nSpeakers: Marcelo S Atallah\n\nThe $C^0$ flux conjec
ture predicts that a symplectic diffeomorphism\nthat can be $C^0$ approxim
ated by a Hamiltonian diffeomorphism is\nitself Hamiltonian. We describe h
ow the flux conjecture relates to new\ninstances of the strong Arnol’d con
jecture and make progress towards\nthe $C^0$ flux conjecture. This is join
t work in progress with Egor\nShelukhin.
DTSTART:20231016T163000Z
DTEND:20231016T174500Z
LAST-MODIFIED:20231016T191307Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Symplectic Geometry Seminar
URL:https://www.ias.edu/math/events/symplectic-geometry-seminar-0
END:VEVENT
BEGIN:VEVENT
UID:34363530-3535-4339-b430-303366336537
DTSTAMP:20231205T044450Z
CREATED:20230810T125507Z
DESCRIPTION:Topic: Fourier Uniqueness and Nonuniqueness Pairs\n\nSpeakers:
Mikhail Sodin\n\nMotivated by a discovery by Radchenko and Viazovska and b
y a work by\nRamos and Sousa\, we find conditions sufficient for a pair of
discrete\nsubsets of the real axis to be a uniqueness or a non-uniqueness
pair\nfor the Fourier transform. These conditions are not too far from ea
ch\nother. The uniqueness theorem can be upgraded to the frame bound and\n
an interpolation formula\, which in turn produce an abundance of\nPoisson-
like formulas (a.k.a. 'crystalline measures'). The talk is\nbased on a joi
nt work with A. Kulikov and F. Nazarov\nhttps://arxiv.org/abs/2306.14013 .
DTSTART:20231016T180000Z
DTEND:20231016T190000Z
LAST-MODIFIED:20231016T191651Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Members' Colloquium
URL:https://www.ias.edu/math/events/members-colloquium-52
END:VEVENT
BEGIN:VEVENT
UID:30376266-3639-4230-a133-386532303036
DTSTAMP:20231205T044450Z
CREATED:20230809T190502Z
DESCRIPTION:Topic: Extending Generalization Theory to Address Phenomena in
Contemporary Machine Learning\n\nSpeakers: Shay Moran\n\nRecent years have
seen remarkable progress in the field of Machine\nLearning (ML). \n\nHowe
ver recent breakthroughs exhibit phenomena that remain unexplained\nand at
times contradict conventional wisdom. A primary reason for\nthis discrep
ancy is that classical ML theory adopts a worst-case\nperspective which of
ten appears overly pessimistic for explaining\npractical ML scenarios. In
reality data is rarely worst-case and\nexperimental evidence suggests that
often much less data is needed\nthan predicted by traditional theory. \n
\nIn this tutorial we will overview the classical Vapnik-Chervonenkis\nThe
ory along with two variations that offer distribution- and\ndata-dependent
perspectives. These variations complement the\nclassical theory's worst-c
ase (distribution-free) perspective and are\nwell-suited for leveraging sp
ecific properties of a given learning\ntask. A unifying theme among these
models is their combinatorial\nnature\, marking a continuation of the rel
ationship between machine\nlearning and combinatorics—a connection dating
back to the discovery\nof the VC dimension over 50 years ago.
DTSTART:20231017T143000Z
DTEND:20231017T163000Z
LAST-MODIFIED:20231102T173119Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Computer Science/Discrete Mathematics Seminar II
URL:https://www.ias.edu/math/events/computer-sciencediscrete-mathematics-se
minar-ii-541
END:VEVENT
BEGIN:VEVENT
UID:33653664-3362-4265-a165-313463613765
DTSTAMP:20231205T044450Z
CREATED:20230915T183223Z
DESCRIPTION:Topic: Test Ideals in Mixed Characteristic via the p-adic Riema
nn-Hilbert Correspondence\n\nSpeakers: Linquan Ma\n\nMultiplier ideals in
characteristic zero and test ideals in positive\ncharacteristic are fundam
ental objects in the study of commutative\nalgebra and birational geometry
in equal characteristic. We\nintroduced a mixed characteristic version o
f the multiplier / test\nideal using the $p$-adic Riemann-Hilbert correspo
ndence of\nBhatt-Lurie. Under mild finiteness assumptions\, we show that
this\nversion of test ideal commutes with localization and can be computed
\nby a single alteration up to small perturbation.\n\nThis is based on joi
nt work in progress with Bhargav Bhatt\, Zsolt\nPatakfalvi\, Karl Schwede\
, Kevin Tucker\, Joe Waldron\, and Jakub\nWitaszek.
DTSTART:20231018T180000Z
DTEND:20231018T190000Z
LAST-MODIFIED:20231120T153529Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Special Year Seminar
URL:https://www.ias.edu/math/events/special-year-seminar-0
END:VEVENT
BEGIN:VEVENT
UID:34653666-6130-4339-b939-623064663863
DTSTAMP:20231205T044450Z
CREATED:20231002T154933Z
DESCRIPTION:Topic: The p-adic Simpson Correspondence for G_m\n\nSpeakers: B
urt Totaro
DTSTART:20231019T140000Z
DTEND:20231019T160000Z
LAST-MODIFIED:20231120T153552Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Special Year Learning Seminar
URL:https://www.ias.edu/math/events/special-year-learning-seminar-15
END:VEVENT
BEGIN:VEVENT
UID:34376561-3930-4731-b865-373238633133
DTSTAMP:20231205T044450Z
CREATED:20231013T165100Z
DESCRIPTION:Topic: Prospects of X-ray imaging of the outer heliosphere (and
other 'astrospheres')\n\nSpeakers: Mikhail Medvedev\n\nCharge-exchange (C
X) collisions of the solar wind (SW)\nhigh-ionization-state minor ions wit
h LISM neutrals are responsible\nfor much of X-ray production in the outer
heliosphere. In this talk\,\nwe discuss numerical modeling of the heliosp
heric CX X-ray production\nand its contribution to the soft X-ray backgrou
nd. We show that the\nevolution of the SW ion-composition and the accompan
ying spectral\nchanges can serve as a useful diagnostic tool for studies o
f the SW\nplasma state and evolution. We assess feasibility of CX X-ray\nd
etection from the outer heliosphere and astrospheres of nearby\nstars.
DTSTART:20231019T150000Z
DTEND:20231019T160000Z
LAST-MODIFIED:20231013T165333Z
LOCATION:Bloomberg Lecture Hall
SUMMARY:Institute for Advanced Study Astrophysics Seminar
URL:https://www.ias.edu/sns/events/institute-advanced-study-astrophysics-se
minar-83
END:VEVENT
BEGIN:VEVENT
UID:35313437-3162-4037-a136-633030383065
DTSTAMP:20231205T044450Z
CREATED:20230810T192100Z
DESCRIPTION:Topic: Convex Hypersurfaces\, Contact Homology\, and Relative G
W\n\nSpeakers: Russell Avdek\n\nWhile convex hypersurfaces are well unders
tood in 3d contact topology\,\nwe are just starting to explore their basic
properties in high\ndimensions. I will describe how to compute contact ho
mologies (CH) of\ntheir neighborhoods\, which can be used to infer tightne
ss in any\ndimension. Then I’ll give a general construction of high-dimens
ional\nconvex hypersurfaces in the style of Gompf’s fiber sum. For these\n
convex hypersurfaces\, relative Gromov-Witten can often compute CH in\nthe
style of Diogo-Lisi. We’ll work through some interesting\nexamples.
DTSTART:20231020T131500Z
DTEND:20231020T144500Z
LAST-MODIFIED:20231016T142108Z
LOCATION:Remote Access
SUMMARY:Joint IAS/Princeton/Montreal/Paris/Tel-Aviv Symplectic Geometry Zoo
minar
URL:https://www.ias.edu/math/events/joint-iasprincetonmontrealparistel-aviv
-symplectic-geometry-zoominar-126
END:VEVENT
BEGIN:VEVENT
UID:34323834-6331-4061-b737-326465636235
DTSTAMP:20231205T044450Z
CREATED:20231013T163805Z
DESCRIPTION:Topic: Kinetic simulations of strong non-relativistic shocks pr
opagating in a turbulent medium\n\nSpeakers: Karol Fulat\n\nStrong non-rel
ativistic shocks are known to accelerate particles up to\nrelativistic ene
rgies. However\, for Diffusive Shock Acceleration\nelectrons must have a h
ighly suprathermal energy\, implying a need for\nvery efficient pre-accele
ration. Most published studies consider\nshocks propagating through homoge
neous plasma\, which is an unrealistic\nassumption for astrophysical envir
onments. To address this limitation\,\nwe have developed a novel simulatio
n technique that provides a\nframework for studying shocks propagating in
turbulent media. In this\ntalk\, I will present results from PIC simulatio
ns of non-relativistic\nhigh-Mach-number shocks propagating in electron-io
n plasma with a\nturbulent upstream medium. We explore the impact of the f
luctuations\non electron heating and acceleration\, the dynamics of upstre
am\nelectrons\, and the driving of plasma instabilities. I will also\ndisc
uss our recent findings from oblique shock simulations.
DTSTART:20231020T163000Z
DTEND:20231020T173000Z
LAST-MODIFIED:20231013T164812Z
LOCATION:Dome Room\, Peyton Hall or Zoom
SUMMARY:Princeton University Astroplasmas Seminar
URL:https://www.ias.edu/sns/events/princeton-university-astroplasmas-semina
r-55
END:VEVENT
BEGIN:VEVENT
UID:66383432-6238-4365-a339-626639343764
DTSTAMP:20231205T044450Z
CREATED:20231013T131206Z
DESCRIPTION:Topic: What is a High Dimensional Expander?\n\nSpeakers: Siqi L
iu
DTSTART:20231020T170000Z
DTEND:20231020T180000Z
LAST-MODIFIED:20231120T144529Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:What is...?
URL:https://www.ias.edu/math/events/what-13
END:VEVENT
BEGIN:VEVENT
UID:30613236-6164-4166-b333-653465626363
DTSTAMP:20231205T044450Z
CREATED:20230809T194434Z
DESCRIPTION:Topic: Condensed Cohomology\n\nSpeakers: Vadim Vologodsky
DTSTART:20231020T183000Z
DTEND:20231020T203000Z
LAST-MODIFIED:20231004T124552Z
LOCATION:Princeton University\, Fine Hall 314
SUMMARY:Condensed Learning Seminar
URL:https://www.ias.edu/math/events/condensed-learning-seminar-0
END:VEVENT
BEGIN:VEVENT
UID:31303937-3335-4133-a535-323231646633
DTSTAMP:20231205T044450Z
CREATED:20230810T132029Z
DESCRIPTION:Topic: Lipschitz Graphs in Carnot Groups\n\nSpeakers: Davide Vi
ttone\n\nSubmanifolds with intrinsic Lipschitz regularity in Carnot groups
\n(i.e.\,\nstratified groups endowed with a sub-Riemannian structure) can
be\nintroduced using the theory of intrinsic Lipschitz graphs started\nyea
rs\nago by B. Franchi\, R. Serapioni and F. Serra Cassano. One of the main
\nrelated questions concerns a Rademacher-type theorem about the almost\ne
verywhere existence of a tangent plane to intrinsic Lipschitz graphs:\naft
er a gentle introduction to the topic\, I will discuss a positive\nsolutio
n to the problem in Heisenberg groups. The proof uses the\nlanguage of cur
rents in Heisenberg groups (in particular\, a version of\nthe Constancy Th
eorem) and a number of complementary results such as\nextension and smooth
approximation theorems for intrinsic Lipschitz\ngraphs. I will also show
a recent example\, joint with A. Julia and S.\nNicolussi Golo\, of an intr
insic Lipschitz graph in a Carnot group that\nis nowhere intrinsically dif
ferentiable. The talk will be kept at an\nintroductory level.
DTSTART:20231020T183000Z
DTEND:20231020T193000Z
LAST-MODIFIED:20231101T150223Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Analysis and Mathematical Physics
URL:https://www.ias.edu/math/events/analysis-and-mathematical-physics-13
END:VEVENT
BEGIN:VEVENT
UID:37333033-3437-4331-b635-393934366465
DTSTAMP:20231205T044450Z
CREATED:20230908T141822Z
DESCRIPTION:Topic: The Physical Drivers and Observational Tracers of CO-to-
H2 Conversion Factor Variations in Nearby Barred Galaxy Centers\n\nSpeaker
s: Eltha Yu-Hsuan Teng\n\nEach week\, we hold a relatively informal semina
r/discussion series\nwith an emphasis on extra-galactic and large-scale st
ructure\nastrophysics.\n\nDuring Galread a leader/visitor presents a recen
t paper to the\ndiscussion group. The PDF of the paper is projected onto a
large\nscreen\, and a guest explains the paper\, section by section\, in
greater\ndetail than may be explained within the text of the article. To a
id\nwith discussion\, only the article PDF is presented -- no\npowerpoint-
style slides. Galread discussions are very friendly and\ninteractive.
DTSTART:20231023T150000Z
DTEND:20231023T160000Z
LAST-MODIFIED:20230908T141924Z
LOCATION:Zoom and Peyton Hall\, Grand Central
SUMMARY:Princeton University Galread [Galactic/Extragalactic Reading Group]
URL:https://www.ias.edu/sns/events/princeton-university-galread-galacticext
ragalactic-reading-group-78
END:VEVENT
BEGIN:VEVENT
UID:62663964-3863-4861-a135-633164313334
DTSTAMP:20231205T044450Z
CREATED:20230809T185906Z
DESCRIPTION:Topic: A Proof of the RM Code Capacity Conjecture\n\nSpeakers:
Emmanuel Abbé\n\nIn 1948\, Shannon used a probabilistic argument to show t
he existence\nof codes achieving channel capacity. In 1954\, Muller and Re
ed\nintroduced a simple deterministic code construction\, conjectured\nsho
rtly after to achieve channel capacity. Major progress was made\ntowards e
stablishing this conjecture over the last decades\, with the\ninvolvement
of various areas of discrete mathematics. In particular\,\nthe special cas
e of the erasure channel was settled in 2015 by Kudekar\net al.\, relying
on Bourgain-Kalai's sharp threshold theorem for\nsymmetric monotone proper
ties. The case of error channels remained\nhowever unsettled\, due in part
icular to the property being\nnon-monotone\, and the absence of techniques
to obtain fast local error\ndecay. In this talk\, we provide a proof of t
he conjecture. The proof\ncircumvents the requirement of monotone properti
es to establish first\na 'weak' threshold property that relies solely on s
ymmetries. From\nthere on\, the proof proceeds with a new boosting framewo
rk for coding\,\nusing sunflower structures and weight enumerator bounds f
rom\nSberlo-Shpilka to control the global error down to capacity. Joint\nw
ork with Colin Sandon.
DTSTART:20231023T151500Z
DTEND:20231023T161500Z
LAST-MODIFIED:20231102T173221Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Computer Science/Discrete Mathematics Seminar I
URL:https://www.ias.edu/math/events/computer-sciencediscrete-mathematics-se
minar-i-549
END:VEVENT
BEGIN:VEVENT
UID:63623730-6535-4536-b737-646130306333
DTSTAMP:20231205T044450Z
CREATED:20230908T164333Z
DESCRIPTION:Topic: Envelopes of Giant Planets in Multifluid Radiation Hydro
dynamics Models\n\nSpeakers: Leonardo Krapp\n\nDuring the early stages of
giant planet formation\, the proto-planet\ncontinuously exchanges mass and
angular momentum with the\nprotoplanetary disks. This exchange process is
believed to happen\nthrough an extended gaseous envelope that connects th
e solid core with\nthe outer regions of the planet's Hill sphere. In this
talk\, I will\npresent 3D multi-fluid radiation hydrodynamics simulations
of a planet\nembedded in a disk and characterize two different types of en
velopes.\nI will focus on realistic cooling calculations with opacity base
d on\nself-consistent dust dynamics. In particular\, I will showcase the\n
regimes where the multifluid simulations reveal an opacity that\ndeviates
from spherical symmetry. This anisotropic opacity has\nimportant implicati
ons for the formation and contraction of the\nplanet’s atmosphere. Finally
\, I will discuss my simulations in the\ncontext of protoplanetary disk ob
servations and the detection of\nprotoplanets.
DTSTART:20231023T160000Z
DTEND:20231023T170000Z
LAST-MODIFIED:20231020T151922Z
LOCATION:Zoom and Peyton Dome Rm\, Princeton University
SUMMARY:Princeton University Extrasolar Planet Discussion Group
URL:https://www.ias.edu/sns/events/princeton-university-extrasolar-planet-d
iscussion-group-91
END:VEVENT
BEGIN:VEVENT
UID:34353733-3162-4736-a361-623130306565
DTSTAMP:20231205T044450Z
CREATED:20230810T193556Z
DESCRIPTION:Topic: Coarse Distance from Dynamically Convex to Convex\n\nSpe
akers: Jean Gutt\n\nChaidez and Edtmair have recently found the first exam
ples of\ndynamically convex domains in $R^4$ that are not symplectomorphic
to\nconvex domains (called symplectically convex domains)\, answering a\n
long-standing open question. In this talk we shall present new\nexamples o
f such domains without referring to Chaidez-Edtmair’s\ncriterion. We shall
show that these domains are arbitrarily far from\nthe set of symplectical
ly convex domains in $R^4$ with respect to the\ncoarse symplectic Banach-M
azur distance by using an explicit numerical\ncriterion for symplectic non
-convexity. This is joint work with\nJ.Dardennes\, V.Ramos and J.Zhang
DTSTART:20231023T163000Z
DTEND:20231023T174500Z
LAST-MODIFIED:20231023T200308Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Symplectic Geometry Seminar
URL:https://www.ias.edu/math/events/symplectic-geometry-seminar-1
END:VEVENT
BEGIN:VEVENT
UID:66333963-3038-4237-b933-363039363033
DTSTAMP:20231205T044450Z
CREATED:20230922T140524Z
DESCRIPTION:Topic: Gravitational Wave Paleontology: a new way to probe mass
ive stars through cosmic history\n\nSpeakers: Floor Broekgaarden\n\nI will
discuss the challenges and prospects of Gravitational-wave\nPaleontology:
studying massive (binary) stars from\ntheir “remnants” as compact object
mergers\, with the goal to\nanswer key open questions in gravitational-wa
ve astronomy today:\nWhat can we learn from these gravitational-wave sourc
es about the\nformation\, lives\, and explosive deaths of massive stars ac
ross cosmic\ntime? I’ll discuss the biggest bottleneck in gravitational-w
ave\npaleontology: the uncertainty challenge\, and would love to discuss n
ew\nprojects/collaborations to overcome it.
DTSTART:20231023T163000Z
DTEND:20231023T180000Z
LAST-MODIFIED:20231023T131051Z
LOCATION:IAS\, West Seminar Room
SUMMARY:Institute for Advanced Study/Princeton University Early Universe/Co
smology Lunch Discussion
URL:https://www.ias.edu/sns/events/institute-advanced-studyprinceton-univer
sity-early-universecosmology-lunch-discussion-62
END:VEVENT
BEGIN:VEVENT
UID:39663239-3535-4134-a238-373461633363
DTSTAMP:20231205T044450Z
CREATED:20231020T153119Z
DESCRIPTION:Topic: Photometric Redshifts for the Next Generation of Sky Sur
veys\n\nSpeakers: Biprateep Dey\n\nStudies of cosmology\, galaxy evolution
\, and astronomical transients\nwith the next generation of imaging survey
s (like LSST\, Euclid\,\nand Roman Observatories) are all critically depen
dent on\nestimates of galaxy redshifts from imaging data alone\; the\nresu
lting measurements are called photometric redshifts or\nphoto-z's. Traditi
onal photo-z estimation methods use galaxy colors\nand magnitudes as input
s thereby throwing away the rich pixel-level\ninformation present in resol
ved images. Moreover\, the uncertainty\nestimates produced by these method
s are not statistically well\ndefined. In this presentation\, I will discu
ss new deep learning-based\nphoto-z estimation methods that take images di
rectly as inputs and\nprovide state-of-the-art photo-z prediction accuracy
while being\ninterpretable and requiring less training data. I will also
present a\nstatistical formalism to produce well-calibrated photo-z uncert
ainty\nestimates that are agnostic and employ minimal assumptions. As thes
e\nmethods critically depend on the availability of complete and\nunbiased
training data\, I will also provide a short overview of our\nrecent effor
ts to obtain spectroscopic samples to train for photo-z\nalgorithms using
the Dark Energy Spectroscopic Instrument (DESI).
DTSTART:20231023T180000Z
DTEND:20231023T190000Z
LAST-MODIFIED:20231020T153421Z
LOCATION:Zoom and Broadmead 102
SUMMARY:Princeton University Survey Science Discussion
URL:https://www.ias.edu/sns/events/princeton-university-survey-science-disc
ussion-1
END:VEVENT
BEGIN:VEVENT
UID:37613334-3237-4337-a233-376132656438
DTSTAMP:20231205T044450Z
CREATED:20230810T125554Z
DESCRIPTION:Topic: High Dimensional Variants of the Finite Field Kakeya Pro
blem\n\nSpeakers: Zeev Dvir\n\nThe finite field Kakeya problem asks about
the size of the smallest\nset in (F_q)^n containing a line in every direct
ion. Raised by Wolff\nin 1999 as a ‘toy’ version of the Euclidean Kakeya
conjecture\,\nthis problem is now completely resolved using the polynomial
method.\nIn this talk I will describe recent progress on its higher dimen
sional\nvariant in which lines are replaced with k-dimensional flats. It t
urns\nout that\, unlike in the one dimensional case\, when k >=2\, one ca
n\nprove that there are no 'interesting’ constructions (with size\nsmaller
than trivial) even if one asks for sets that only have large\nintersectio
n with a flat in every direction. This theorem turns\nout to have surpri
sing applications in questions involving Lattice\ncoverings and linear has
h functions.\n\nBased on joint works with Ben Lund and Manik Dhar.
DTSTART:20231023T180000Z
DTEND:20231023T190000Z
LAST-MODIFIED:20231016T144627Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Members' Colloquium
URL:https://www.ias.edu/math/events/members-colloquium-54
END:VEVENT
BEGIN:VEVENT
UID:32393438-6136-4435-b363-353861623332
DTSTAMP:20231205T044450Z
CREATED:20230811T153702Z
DESCRIPTION:Topic: Solid Modules and Six Functors for Quasi-Coherent Sheave
s\n\nSpeakers: Lenny Taelman\n\nQuasi-coherent sheaves cannot support a si
x-functor formalism in the\nsame way that e.g. \ell-adic sheaves do. Claus
en and Scholze have\nshown that this can be fixed by extending the categor
y of\nquasi-coherent sheaves to `solid sheaves’. In this talk we will\nske
tch an alternative proof of this. We will define solid modules in a\npurel
y algebraic way (without reference to condensed mathematics)\, and\nproduc
e f_! and f^! similarly to how it is done in SGA. This talk will\nbe logic
ally independent of the rest of the seminar. Based on a group\nproject at
the 2023 Stacks Project Workshop\, with Emilie Arvidsson\,\nFinn Bartsch\,
Thomas Brazelton\, Sheela Devadas\, Karim Réga\, Gleb\nTerentiuk.
DTSTART:20231023T193000Z
DTEND:20231023T213000Z
LAST-MODIFIED:20231101T150305Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Condensed Learning Seminar
URL:https://www.ias.edu/math/events/condensed-learning-seminar-8
END:VEVENT
BEGIN:VEVENT
UID:36323337-6537-4833-b630-386131313939
DTSTAMP:20231205T044450Z
CREATED:20230809T190523Z
DESCRIPTION:Topic: An Optimization Perspective on Log-concave Sampling\n\nS
peakers: Sinho Chewi\n\nI will give an introduction to the problem of samp
ling from a strongly\nlog-concave density on Euclidean space through the l
ens of convex\noptimization. In particular\, I will focus on the interpre
tation\, due\nto Jordan\, Kinderlehrer\, and Otto\, of the Langevin diffus
ion as a\nWasserstein gradient flow.
DTSTART:20231024T143000Z
DTEND:20231024T163000Z
LAST-MODIFIED:20231102T173250Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Computer Science/Discrete Mathematics Seminar II
URL:https://www.ias.edu/math/events/computer-sciencediscrete-mathematics-se
minar-ii-542
END:VEVENT
BEGIN:VEVENT
UID:34363239-3237-4633-b561-306332366234
DTSTAMP:20231205T044450Z
CREATED:20230901T171152Z
DESCRIPTION:The Bahcall Lunch follow the astrophysics colloquium lecture.\n
Registration is required by 6pm the previous Thursday so a meal can be\npr
ovided. Email Amanda at cenker@ias.edu with questions.
DTSTART:20231024T163000Z
DTEND:20231024T173000Z
LAST-MODIFIED:20230901T171210Z
LOCATION:Simons Hall Dilworth Room
SUMMARY:Institute for Advanced Study / Princeton University Bahcall Lunch
URL:https://www.ias.edu/sns/events/institute-advanced-study-princeton-unive
rsity-bahcall-lunch-50
END:VEVENT
BEGIN:VEVENT
UID:35346630-6664-4132-b166-343234393839
DTSTAMP:20231205T044450Z
CREATED:20231020T161437Z
DESCRIPTION:Topic: Implementing radiative transfer with the M1 closure usin
g a Godunov type solver.\n\nSpeakers: Romain Teyssier
DTSTART:20231024T180000Z
DTEND:20231024T190000Z
LAST-MODIFIED:20231020T161545Z
LOCATION:Peyton Hall\, Grand Central
SUMMARY:Princeton University Computational Astrophysics Club
URL:https://www.ias.edu/sns/events/princeton-university-computational-astro
physics-club-18
END:VEVENT
BEGIN:VEVENT
UID:64346665-3933-4133-b437-656235323964
DTSTAMP:20231205T044450Z
CREATED:20231006T124744Z
DESCRIPTION:Topic: Fourier Uniqueness and Interpolation I\, II\, III\n\nSpe
akers: Maryna Viazovska\n\nCan we reconstruct a function by knowing only a
subset of its values\nand a subset of the values of the function's Fourie
r transform?\nHow many values do we need to know for such a reconstruction
? Can we\ninterpolate a given subset of values? What are the possible\napp
lications of such interpolation? In this series of lectures\, we\nwill try
to answer these questions.\nIn the first lecture\, we will speak about th
e Cohn-Elkies linear\nprogramming bound for the sphere packing and how thi
s bound's analysis\nled to the discovery of a Fourier interpolation formul
a. The second\nlecture will discuss explicit constructions of Fourier uniq
ueness sets\nand Fourier interpolation formulas. The third lecture will fo
cus on\nanalytic approaches to Fourier uniqueness and interpolation.
DTSTART:20231025T150000Z
DTEND:20231025T160000Z
LAST-MODIFIED:20231025T172122Z
LOCATION:Simonyi Hall 101 and Remote Access - see Zoom link below
SUMMARY:Hermann Weyl Lectures
URL:https://www.ias.edu/math/events/hermann-weyl-lectures-34
END:VEVENT
BEGIN:VEVENT
UID:35383064-3230-4963-a533-393965306531
DTSTAMP:20231205T044450Z
CREATED:20230804T133242Z
DESCRIPTION:Topic: Syriac Christianity and the Holy City of Jerusalem: Enta
ngled Histories in Late Antiquity and the Middle Ages\n\nSpeakers: Catalin
-Stefan Popa\n\nThe lecture introduces the audience to the process of inte
raction of\none of the most important Middle Eastern Church traditions\, S
yriac\nChristianity\, with the Holy City and the Holy Land. Even if schola
rs\nhave often argued that the late antique pilgrimage to the holy places
\nwas not of interest in Syriac Christianity\, the sources have\ndemonstra
ted the opposite. At the end of Late Antiquity and beginning\nof the Middl
e Ages\, the Holy City acted in Syriac Christian canon as a\nmatrix for en
countering holiness\, and a standardized process of\npilgrimage became par
t of a recurrent devotional custom of monks and\nlay people. \n\nREGISTRAT
ION IS REQUIRED for both in-person or virtual attendance. To\nregister vis
it HTTPS://BIT.LY/3CPZC9W [https://bit.ly/3CPZc9W].
DTSTART:20231025T160000Z
DTEND:20231025T160000Z
LAST-MODIFIED:20230828T115355Z
LOCATION:Hybrid event: IAS White-Levy Room and Zoom
SUMMARY:NES Lecture
URL:https://www.ias.edu/hs/events/nes-lecture
END:VEVENT
BEGIN:VEVENT
UID:62656265-3338-4830-b435-393537366463
DTSTAMP:20231205T044450Z
CREATED:20230915T183358Z
DESCRIPTION:Topic: p-adic Hodge Theory and Simpson’s Correspondence\n\nSpea
kers: Annette Werner\n\nThis talk will introduce background\, achievements
and challenges in\nthe quest to find non-Archimedean versions of the cele
brated\nCorlette-Simpson correspondence\, which on Kähler manifolds relate
s\nrepresentations of the fundamental group to certain Higgs bundles.\n\nI
n the non-Archimedean world\, vector bundles for the v-topology on\nScholz
e’s diamonds have proven to be a useful framework to study\nanalogous prob
lems. This leads to some results and many questions\neven beyond the scop
e of the classical setting. In particular\, I\nwill explain results for a
beloid varieties obtained jointly with Ben\nHeuer\, Lucas Mann and Mingjia
Zhang. \n
DTSTART:20231025T180000Z
DTEND:20231025T190000Z
LAST-MODIFIED:20231120T153625Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Special Year Seminar
URL:https://www.ias.edu/math/events/special-year-seminar-1
END:VEVENT
BEGIN:VEVENT
UID:37343136-3931-4532-a664-326263366435
DTSTAMP:20231205T044450Z
CREATED:20230810T190233Z
DESCRIPTION:Topic: Real Applications of Non-real Numbers\n\nSpeakers: Alexa
nder Lubotzky
DTSTART:20231025T220000Z
DTEND:20231026T000000Z
LAST-MODIFIED:20231019T180618Z
LOCATION:Birch Garden\, Simons Hall
SUMMARY:Mathematical Conversations
URL:https://www.ias.edu/math/events/mathematical-conversations-263
END:VEVENT
BEGIN:VEVENT
UID:34663436-6632-4262-b333-373538373033
DTSTAMP:20231205T044450Z
CREATED:20231002T155448Z
DESCRIPTION:Topic: Hitchin Maps in Non-abelian p-adic Hodge Theory\n\nSpeak
ers: Siqing Zhang
DTSTART:20231026T140000Z
DTEND:20231026T160000Z
LAST-MODIFIED:20231120T153656Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Special Year Learning Seminar
URL:https://www.ias.edu/math/events/special-year-learning-seminar-17
END:VEVENT
BEGIN:VEVENT
UID:66656634-3739-4332-b035-306461326638
DTSTAMP:20231205T044450Z
CREATED:20230712T201839Z
DESCRIPTION:Topic: Searching for “Lonely” Dark Objects with Microlensing\n
\nSpeakers: Subo Dong\n\nAffiliation: The Institute for Advanced Study\n\n
Galactic microlensing is the only known method to discover dark\nobjects r
anging from isolated stellar-mass black holes (BHs) down to\nEarth-mass fr
ee-floating planets (FFPs). The recent success of\ninterferometric resolut
ion of microlensed images with VLTI opens up a\nnew venue for discovering
isolated stellar remnants. I discuss how the\nVLTI-GRAVITY(+) instrument c
an significantly advance such discoveries\,\npotentially leading to measur
ing the mass function of isolated\nstellar-mass BHs. Ground-based surveys
have found more than a dozen\nultra-short microlensing events\, with the i
ntriguing implication that\nFFPs are a few times more common than planets
bound to stars. I will\ndiscuss the prospect of future space-based microle
nsing surveys to\ndiscover and characterize a large sample of low-mass FFP
s.
DTSTART:20231026T150000Z
DTEND:20231026T160000Z
LAST-MODIFIED:20231020T151621Z
LOCATION:Bloomberg Lecture Hall
SUMMARY:Institute for Advanced Study Astrophysics Seminar
URL:https://www.ias.edu/sns/events/institute-advanced-study-astrophysics-se
minar-78
END:VEVENT
BEGIN:VEVENT
UID:38313866-6134-4532-a433-396137306432
DTSTAMP:20231205T044450Z
CREATED:20230810T132000Z
DESCRIPTION:Topic: TBD
DTSTART:20231026T190000Z
DTEND:20231026T200000Z
LAST-MODIFIED:20230914T143847Z
LOCATION:*Princeton University\, Fine 214*
SUMMARY:Number Theory Learning Seminar
URL:https://www.ias.edu/math/events/number-theory-learning-seminar-1
END:VEVENT
BEGIN:VEVENT
UID:39366438-6461-4364-b630-663030313233
DTSTAMP:20231205T044450Z
CREATED:20230816T130531Z
DESCRIPTION:Topic: Tate Classes and Endoscopy for GSp4\n\nSpeakers: Naomi S
weeting\n\nWeissauer proved using the theory of endoscopy that the Galois
\nrepresentations associated to classical modular forms of weight two\napp
ear in the middle cohomology of both a modular curve and a Siegel\nmodular
threefold. Correspondingly\, there are large families of Tate\nclasses on
the product of these two Shimura varieties\, and it is\nnatural to ask wh
ether one can construct algebraic cycles giving rise\nto these Tate classe
s. It turns out that a natural algebraic cycle\ngenerates some\, but not a
ll\, of the Tate classes: to be precise\, it\ngenerates exactly the Tate c
lasses which are associated to generic\nmembers of the endoscopic L-packet
s on GSp4. In the non-generic case\,\none can at least show that all the T
ate classes arise from Hodge\ncycles. I'll explain these results and their
proofs\, which rely on the\ntheta correspondence.
DTSTART:20231026T203000Z
DTEND:20231026T213000Z
LAST-MODIFIED:20231023T154532Z
LOCATION:*Princeton University\, Fine 214*
SUMMARY:Joint PU/IAS Number Theory
URL:https://www.ias.edu/math/events/joint-puias-number-theory-0
END:VEVENT
BEGIN:VEVENT
UID:33616137-3436-4164-b038-616631633031
DTSTAMP:20231205T044450Z
CREATED:20230810T192152Z
DESCRIPTION:Topic: Three 20-min Research Talks\n\nSpeakers: Lukas Nakamura\
, Habib Alizadeh\, Han Lou\n\nLUKAS NAKAMURA (University of Upsala):\n\nA
METRIC ON THE CONTACTOMORPHISM GROUP OF AN ORDERABLE CONTACT\nMANIFOLD: We
discuss some properties of a pseudo-metric on the\ncontactomorphism group
of a strict contact manifold M induced by the\nmaximum/minimum of Hamilto
nians. We show that it is non-degenerate if\nand only if M is orderable an
d that its metric topology agrees with\nthe interval topology introduced b
y Chernov and Nemirovski. We also\ndiscuss analogous results on isotopy cl
asses of Legendrian\nsubmanifolds and on universal covers.\n\nHABIB ALIZAD
EH (University of Montreal):\n\nFRAGMENTATION IN DIMENSION FOUR AND ITS AP
PLICATION TO SPECTRAL\nESTIMATORS: We show a new Hamiltonian fragmentation
result for\nfour-dimensional symplectic polydisks. As an application to o
ur\nresult\, we prove $C^0$-continuity of the spectral estimators defined
\nby Polterovich and Shelukhin for polydisks.\n\nHAN LOU (University of Ge
orgia\, Athens):\n\nON THE HOFER ZEHNDER CONJECTURE FOR SEMIPOSITIVE SYMPL
ECTIC MANIFOLDS:\nArnold conjecture says that the number of 1-periodic orb
its of a\nHamiltonian diffeomorphism is greater than or equal to the dimen
sion\nof the Hamiltonian Floer homology. In 1994\, Hofer and Zehnder\nconj
ectured that there are infinitely many periodic orbits if the\nequality do
esn't hold. In this talk\, I will show that the\nHofer-Zehnder conjecture
is true for semipositive symplectic manifolds\nwith semisimple quantum hom
ology. This is a joint work with Marcelo\nAtallah.
DTSTART:20231027T131500Z
DTEND:20231027T144500Z
LAST-MODIFIED:20231027T160001Z
LOCATION:Remote Access
SUMMARY:Joint IAS/Princeton/Montreal/Paris/Tel-Aviv Symplectic Geometry Zoo
minar
URL:https://www.ias.edu/math/events/joint-iasprincetonmontrealparistel-aviv
-symplectic-geometry-zoominar-127
END:VEVENT
BEGIN:VEVENT
UID:64343638-3336-4265-b862-333664373336
DTSTAMP:20231205T044450Z
CREATED:20231020T142646Z
DESCRIPTION:Topic: What are the Malle-Bhargava Conjectures?\n\nSpeakers: Al
ina Bucur\n\nWe will explore some counting problems for number fields in w
hich the\nconjectures formulated first by Malle and refined by Bhargava pl
ay a\ncentral role. In the process we will see some standard techniques in
\nanalytic number theory.
DTSTART:20231027T170000Z
DTEND:20231027T180000Z
LAST-MODIFIED:20231120T144449Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:What is...?
URL:https://www.ias.edu/math/events/what-15
END:VEVENT
BEGIN:VEVENT
UID:31346664-6534-4336-a163-386163363337
DTSTAMP:20231205T044450Z
CREATED:20230810T132441Z
DESCRIPTION:Topic: Frobenius-type Results on Submanifolds and Currents\n\nS
peakers: Annalisa Massaccesi\n\nThe question of producing a foliation of t
he n-dimensional Euclidean\nspace with k-dimensional submanifolds which ar
e tangent to a\nprescribed k-dimensional simple vectorfield is part of the
celebrated\nFrobenius theorem: a decomposition in smooth submanifolds tan
gent to a\ngiven vectorfield is feasible (and then the vectorfield itself
is said\nto be integrable) if and only if the vectorfield is involutive. I
n\nthis seminar\, I will summarize the results obtained in collaboration\n
with G. Alberti\, A. Merlo and E. Stepanov when the smooth submanifolds\na
re replaced by weaker objects\, such as (integral or normal) currents\nor
even contact sets with 'some' boundary regularity. I will also\nprovide Lu
sin-type counterexamples to the Frobenius property for\nrectifiable curren
ts. Finally\, I will try to highlight the connection\nbetween involutivity
/integrability à la Frobenius and\nCarnot-Carathéodory spaces and how to a
pply our techniques in this\nframework.
DTSTART:20231027T183000Z
DTEND:20231027T193000Z
LAST-MODIFIED:20231101T150345Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Analysis and Mathematical Physics
URL:https://www.ias.edu/math/events/analysis-and-mathematical-physics-14
END:VEVENT
BEGIN:VEVENT
UID:32646437-3063-4334-b664-646334643634
DTSTAMP:20231205T044450Z
CREATED:20230809T194532Z
DESCRIPTION:Topic: Locally Compact Abelian Groups\n\nSpeakers: Sally Gilles
DTSTART:20231027T183000Z
DTEND:20231027T203000Z
LAST-MODIFIED:20231016T174018Z
LOCATION:Princeton University\, Fine Hall 314
SUMMARY:Condensed Learning Seminar
URL:https://www.ias.edu/math/events/condensed-learning-seminar-1
END:VEVENT
BEGIN:VEVENT
UID:64663933-3462-4238-b064-306563666339
DTSTAMP:20231205T044450Z
CREATED:20230908T143143Z
DESCRIPTION:Topic: Characterize the assembly of dark matter halos with prot
ohalo size histories\n\nSpeakers: Kai Wang\n\nEach week\, we hold a relati
vely informal seminar/discussion series\nwith an emphasis on extra-galacti
c and large-scale structure\nastrophysics.\n\nDuring Galread a leader/visi
tor presents a recent paper to the\ndiscussion group. The PDF of the paper
is projected onto a large\nscreen\, and a guest explains the paper\, sect
ion by section\, in greater\ndetail than may be explained within the text
of the article. To aid\nwith discussion\, only the article PDF is presente
d -- no\npowerpoint-style slides. Galread discussions are very friendly an
d\ninteractive.
DTSTART:20231030T150000Z
DTEND:20231030T160000Z
LAST-MODIFIED:20231027T164321Z
LOCATION:Zoom and Peyton Hall\, Grand Central
SUMMARY:Princeton University Galread [Galactic/Extragalactic Reading Group]
URL:https://www.ias.edu/sns/events/princeton-university-galread-galacticext
ragalactic-reading-group-79
END:VEVENT
BEGIN:VEVENT
UID:65323631-6565-4261-b966-636639666134
DTSTAMP:20231205T044450Z
CREATED:20230809T185937Z
DESCRIPTION:Topic: A High Dimensional Goldreich-Levin Theorem\n\nSpeakers:
Silas Richelson\n\nIn this work we prove a high dimensional analogue of th
e beloved\nGoldreich-Levin theorem (STOC 1989)\, which is the first _loca
l\nlist-decoding_ algorithm. We consider the following algorithmic\nprobl
em: given oracle access to a function $f: Z_q^m \longrightarrow\nZ_q^n$ su
ch that $Pr_{x ~ Z_q^m} [ f(x)=Ax ] \geq \epsilon$ for some\nmatrix $A \in
Z_q^{n x m}$ and $\epsilon>0$\, recover $A$ (or a list of\nall such matri
ces). \n\nThe original Goldreich-Levin theorem (which handles the case $n
=1$\nabove) actually handles the agreements $\epsilon \gt 1/q$ for any $n$
.\nHence\, we focus on _tiny _agreements $\epsilon \leq 1/q$. As stated\,
\nthis problem cannot be efficiently solved\, since when the list of\nmatr
ices $A$ with good agreement with $f$ might be exponentially\nlarge. Thus
we define a new notion of list-decoding\; a short list of\nsuch matrices `
`capturing'' all others.\n\nOur main theorem gives an algorithm which effi
ciently recovers a\n(small) list\, of size $O( \epsilon^{-1} )$\, of linea
r maps $A$ which\nsatisfy: (1) each $A$ good agreement with $f$\, and (2)
every linear\nmap which has good agreement with $f$\, also has good agreem
ent with\nsome map $A$ in our list. The proof makes novel use of Fourier\n
analysis.
DTSTART:20231030T151500Z
DTEND:20231030T161500Z
LAST-MODIFIED:20231102T173331Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Computer Science/Discrete Mathematics Seminar I
URL:https://www.ias.edu/math/events/computer-sciencediscrete-mathematics-se
minar-i-550
END:VEVENT
BEGIN:VEVENT
UID:66653234-3166-4263-b964-376531643833
DTSTAMP:20231205T044450Z
CREATED:20230908T164432Z
DESCRIPTION:Topic: General Discussion
DTSTART:20231030T160000Z
DTEND:20231030T170000Z
LAST-MODIFIED:20231027T164534Z
LOCATION:Zoom and Peyton Dome Rm\, Princeton University
SUMMARY:Princeton University Extrasolar Planet Discussion Group
URL:https://www.ias.edu/sns/events/princeton-university-extrasolar-planet-d
iscussion-group-92
END:VEVENT
BEGIN:VEVENT
UID:62653565-6538-4563-a335-393631653266
DTSTAMP:20231205T044450Z
CREATED:20230922T140352Z
DESCRIPTION:Topic: Probing the Ionized Gas Thermodynamics in Distant Galaxi
es with the Sunyaev-Zel’dovich Effect\n\nSpeakers: Ola Kusiak\n\nThe Sunya
ev-Zel’dovich Effect—the Doppler boost of low-energy\nCosmic Microwave Bac
kground photons scattering off free electrons—is\nan excellent probe of io
nized gas residing in distant galaxies. Its\ntwo main constituents are the
kinematic SZ effect (kSZ)\, where\nelectrons have a non-zero line-of-sigh
t (LOS) velocity and which\nprobes the electron line-of-sight momentum\, a
nd the thermal SZ effect\n(tSZ)\, where electrons have high energies due t
o their temperature\,\nand which probes the electron integrated pressure.
These two effects\nprovide complementary information to constrain the ther
modynamic\nprofile of gas residing in distant galaxies\, which can be furt
her used\nto understand feedback processes\, a necessary ingredient to des
cribe\nthe evolution of the large-scale structure in our Universe. Both tS
Z\nand kSZ can be measured in cross-correlation with large-scale\nstructur
e.\n\n \n\nIn this talk\, I will discuss my ongoing measurements of the tS
Z-galaxy\ncross-correlation using unWISE galaxies\, along with the measure
d kSZ\nsignal of unWISE galaxies with Planck using the projected-field\nes
timator with the ACT DR6 data. unWISE is a galaxy\ncatalog containing over
500 million galaxies on the full sky\nand consists of three subsamples of
mean redshifts z=0.5\, 1.1\, 1.5\n[callto:0.5\,1.1\,1.5]\, whose halo occ
upation distribution I have\nalready constrained. If time permits\, I will
also present my ongoing\nwork on mitigating foregrounds in the SZ cross-c
orrelations\,\nparticularly the Cosmic Infrared Background (CIB).
DTSTART:20231030T163000Z
DTEND:20231030T180000Z
LAST-MODIFIED:20231027T164653Z
LOCATION:Peyton Hall\, Grand Central
SUMMARY:Institute for Advanced Study/Princeton University Early Universe/Co
smology Lunch Discussion
URL:https://www.ias.edu/sns/events/institute-advanced-studyprinceton-univer
sity-early-universecosmology-lunch-discussion-63
END:VEVENT
BEGIN:VEVENT
UID:61626537-3338-4332-a236-373532396163
DTSTAMP:20231205T044450Z
CREATED:20230810T193856Z
DESCRIPTION:Topic: Rigidity and Flexibility of Periodic Hamiltonian Flows\n
\nSpeakers: Gabriele Benedetti\n\nAn old problem in classical mechanics is
the existence of periodic\nflows within specific classes of Hamiltonian s
ystems such as geodesic\nand magnetic flows\, and central forces. In the l
ast years\, interest in\nthis problem has been revitalized since recent re
search has unveiled a\ndeep relationship between periodic Hamiltonian flow
s and systolic\nquestions in symplectic and contact geometry. While only t
rivial\nexamples of periodic flows among magnetic and central systems exis
t\,\nZoll and\, later\, Guillemin have shown that there are many exotic\ne
xamples among geodesic flows on the two-sphere. Following Guillemin's\napp
roach\, the goal of this talk is to show how the Nash-Moser implicit\nfunc
tion theorem can be used to construct magnetic flows on the\ntwo-torus whi
ch are periodic for a single value of the energy. This is\njoint work with
Luca Asselle and Massimiliano Berti.
DTSTART:20231030T163000Z
DTEND:20231030T174500Z
LAST-MODIFIED:20231030T180358Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Symplectic Geometry Seminar
URL:https://www.ias.edu/math/events/symplectic-geometry-seminar-2
END:VEVENT
BEGIN:VEVENT
UID:64623462-3137-4938-b330-613562393233
DTSTAMP:20231205T044450Z
CREATED:20230810T125530Z
DESCRIPTION:Topic: TBD
DTSTART:20231030T180000Z
DTEND:20231030T190000Z
LAST-MODIFIED:20231016T141007Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Members' Colloquium
URL:https://www.ias.edu/math/events/members-colloquium-53
END:VEVENT
BEGIN:VEVENT
UID:34663461-6661-4162-a265-316262633937
DTSTAMP:20231205T044450Z
CREATED:20230908T184120Z
DESCRIPTION:Topic: Shimurian Generalizations of Truncated Barsotti-Tate Gro
ups (after V. Drinfeld)\n\nSpeakers: Akhil Mathew\n\nIn a recent article\,
Vladimir Drinfeld proposed (using prismatic\nF-gauges) new 'Shimurian' an
alogs of the stack of n-truncated\nBarsotti-Tate groups. I will give an ov
erview of Drinfeld’s work and\nthe relation to the prismatic Dieudonné the
ory of Anschütz and Le\nBras.
DTSTART:20231030T203000Z
DTEND:20231030T213000Z
LAST-MODIFIED:20231026T123525Z
LOCATION:Princeton University\, Fine Hall 314
SUMMARY:Joint IAS/Princeton Arithmetic Geometry Seminar
URL:https://www.ias.edu/math/events/joint-iasprinceton-arithmetic-geometry-
seminar-5
END:VEVENT
BEGIN:VEVENT
UID:39333966-3639-4634-b637-663062383932
DTSTAMP:20231205T044450Z
CREATED:20230809T190549Z
DESCRIPTION:Topic: High Dimensional Expanders and Sparsifications of the Jo
hnson Graph\n\nSpeakers: Yotam Dikstein\n\nHigh dimensional expanders are
an exciting generalization of expander\ngraphs to hypergraphs and other se
t systems. Loosely speaking\, high\ndimensional expanders are sparse appr
oximation to the complete\nhypergraph. In this talk\, we’ll give a gentle
introduction\nto these objects\, and see how they arise naturally when an
alyzing\nvarious random walks on hypergraphs. Finally\, we will see some
easy\napplications from the definition: including an algorithm for\napprix
mate sampling of matroid bases.
DTSTART:20231031T143000Z
DTEND:20231031T163000Z
LAST-MODIFIED:20231120T153134Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Computer Science/Discrete Mathematics Seminar II
URL:https://www.ias.edu/math/events/computer-sciencediscrete-mathematics-se
minar-ii-543
END:VEVENT
BEGIN:VEVENT
UID:64613262-3738-4461-b662-386339323362
DTSTAMP:20231205T044450Z
CREATED:20230712T191454Z
DESCRIPTION:The Bahcall Lunch follow the astrophysics colloquium lecture.\n
Registration is required by 6pm the previous Thursday so a meal can be\npr
ovided. Email Amanda at cenker@ias.edu with questions.
DTSTART:20231031T163000Z
DTEND:20231031T173000Z
LAST-MODIFIED:20230901T171234Z
LOCATION:Simons Hall Dilworth Room
SUMMARY:Institute for Advanced Study / Princeton University Bahcall Lunch
URL:https://www.ias.edu/sns/events/institute-advanced-study-princeton-unive
rsity-bahcall-lunch-51
END:VEVENT
BEGIN:VEVENT
UID:32343237-6561-4430-b231-626639366433
DTSTAMP:20231205T044450Z
CREATED:20231027T191516Z
DESCRIPTION:Topic: Time-dependent Radiation Transport Equation Based on Dis
crete Ordinates\n\nSpeakers: Yanfei Jiang
DTSTART:20231031T180000Z
DTEND:20231031T190000Z
LAST-MODIFIED:20231027T191643Z
LOCATION:Peyton Hall\, Grand Central
SUMMARY:Princeton University Computational Astrophysics Club
URL:https://www.ias.edu/sns/events/princeton-university-computational-astro
physics-club-19
END:VEVENT
BEGIN:VEVENT
UID:63636331-3732-4463-a137-303236366330
DTSTAMP:20231205T044450Z
CREATED:20231006T141910Z
DESCRIPTION:Topic: Fourier Uniqueness and Interpolation I\, II\, III\n\nSpe
akers: Maryna Viazovska\n\nCan we reconstruct a function by knowing only a
subset of its values\nand a subset of the values of the function's Fourie
r transform?\nHow many values do we need to know for such a reconstruction
? Can we\ninterpolate a given subset of values? What are the possible\napp
lications of such interpolation? In this series of lectures\, we\nwill try
to answer these questions.\nIn the first lecture\, we will speak about th
e Cohn-Elkies linear\nprogramming bound for the sphere packing and how thi
s bound's analysis\nled to the discovery of a Fourier interpolation formul
a. The second\nlecture will discuss explicit constructions of Fourier uniq
ueness sets\nand Fourier interpolation formulas. The third lecture will fo
cus on\nanalytic approaches to Fourier uniqueness and interpolation.
DTSTART:20231101T150000Z
DTEND:20231101T160000Z
LAST-MODIFIED:20231012T172806Z
LOCATION:Simonyi Hall 101 and Remote Access - see Zoom link below
SUMMARY:Hermann Weyl Lectures
URL:https://www.ias.edu/math/events/hermann-weyl-lectures-35
END:VEVENT
BEGIN:VEVENT
UID:30323861-3937-4233-b935-656235653835
DTSTAMP:20231205T044450Z
CREATED:20230920T183717Z
DESCRIPTION:Topic: On Local Systems of Geometric Origin\n\nSpeakers: Alexan
der Petrov\n\nI will discuss the following conjecture: an irreducible\n$\b
ar{Q}$$_{\ell}$-local system L on a smooth complex algebraic\nvariety S ar
ises in cohomology of a family of varieties over S if and\nonly if L can b
e extended to an etale local system over some descent\nof S to a finitely-
generated subfield of complex numbers. I will\ndescribe the motivation fo
r this conjecture coming from relative\np-adic Hodge theory\, known partia
l results\, and possible approaches\n(not very successful so far) to formu
lating a purely $p$-adic (and\nthus hopefully more tractable) version of t
his conjecture. A large\npart of the talk will be expository\, including
material based on the\nideas of Hélène Esnault\, Raju Krishnamoorthy\, and
Josh Lam.
DTSTART:20231101T180000Z
DTEND:20231101T190000Z
LAST-MODIFIED:20231120T153724Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Special Year Seminar
URL:https://www.ias.edu/math/events/special-year-seminar-4
END:VEVENT
BEGIN:VEVENT
UID:33373966-6630-4666-a131-613466386531
DTSTAMP:20231205T044450Z
CREATED:20231011T191946Z
DESCRIPTION:Topic: Stable Homology and the BKPLR Heuristics Over Function F
ields\n\nSpeakers: Jordan Ellenberg\n\nA basic question in arithmetic stat
istics is: what does the Selmer\ngroup of a random abelian variety look l
ike? This question is\ngoverned by the Poonen-Rains heuristics\, later ge
neralized by\nBhargava-Kane-Lenstra-Poonen-Rains\, which predict\, for ins
tance\, that\nthe mod p Selmer group of an elliptic curve has size p+1 on
average. \nResults towards these heuristics have been very partial but hav
e\nnonetheless enabled major progress in studying the distribution of\nran
ks of abelian varieties.\n\n \n\nWe will describe new work\, joint with Aa
ron Landesman\, which\nestablishes a version of these heuristics for the m
od n Selmer group\nof a random quadratic twist of a fixed abelian variety
over a global\nfunction field. This allows us\, for instance\, to bound t
he\nprobability that a random quadratic twist of an abelian variety A over
\na global function field has rank at least 2\, and to bound the\ndiscrepa
ncy between odd and even Selmer rank. The method is very\nmuch in the spi
rit of earlier work with Venkatesh and Westerland which\nproved a version
of the Cohen-Lenstra heuristics over function fields\nby means of homologi
cal stabilization for Hurwitz spaces. So part of\nthe goal of this talk i
s to give a general picture\nof _how_ questions in arithmetic statistics o
ver function fields can\nbe reduced to topological questions about homolog
ical stabilization\,\nand more speculatively\, _which_ questions can be so
reduced\, which I\nhope will also serve as a good lead-in to talks by Pet
ersen and\nWesterland later this week.
DTSTART:20231101T200000Z
DTEND:20231101T210000Z
LAST-MODIFIED:20231101T212859Z
LOCATION:Simonyi Hall101
SUMMARY:Special Seminar on Homological Stability and Number Theory
URL:https://www.ias.edu/events/special-seminar-homological-stability-and-nu
mber-theory
END:VEVENT
BEGIN:VEVENT
UID:37363836-6435-4239-a537-316438373566
DTSTAMP:20231205T044450Z
CREATED:20230810T190525Z
DESCRIPTION:Topic: Are Singularities Naked? \n\nSpeakers: Sven Hirsch
DTSTART:20231101T220000Z
DTEND:20231102T000000Z
LAST-MODIFIED:20231026T193551Z
LOCATION:Birch Garden\, Simons Hall
SUMMARY:Mathematical Conversations
URL:https://www.ias.edu/math/events/mathematical-conversations-264
END:VEVENT
BEGIN:VEVENT
UID:61323563-3964-4366-b437-643761383837
DTSTAMP:20231205T044450Z
CREATED:20231002T155145Z
DESCRIPTION:Topic: The Local Correspondence\n\nSpeakers: Tongmu He
DTSTART:20231102T140000Z
DTEND:20231102T160000Z
LAST-MODIFIED:20231120T153819Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Special Year Learning Seminar
URL:https://www.ias.edu/math/events/special-year-learning-seminar-16
END:VEVENT
BEGIN:VEVENT
UID:37383534-6662-4662-a635-313232396265
DTSTAMP:20231205T044450Z
CREATED:20230712T200617Z
DESCRIPTION:Topic: GRMHD simulations of radiatively non-inefficient black h
ole accretion\n\nSpeakers: Monika Moscibrodzka\n\nX-ray binaries are known
to exhibit different spectral states which\nare associated with different
black hole accretion modes. In\nparticular the geometry of the hot accret
ion flow in hard spectral\nstate is still not fully understood. Recent mea
surements of linear\npolarization of X-ray emission in X-ray binary Cygnus
X-1 allow us to\ntest models for the hard state of accretion in a unique
way. In this\ntalk I will discuss which general relativistic radiative\nma
gnetohydrodynamic simulations of accreting stellar black hole are\nconsist
ent with the new observational information and compare the\nnumerical resu
lts with the results from semi-analytic modeling\napproaches.
DTSTART:20231102T150000Z
DTEND:20231102T160000Z
LAST-MODIFIED:20231027T170107Z
LOCATION:Bloomberg Lecture Hall
SUMMARY:Institute for Advanced Study Astrophysics Seminar
URL:https://www.ias.edu/sns/events/institute-advanced-study-astrophysics-se
minar-75
END:VEVENT
BEGIN:VEVENT
UID:62653262-3266-4531-b137-333235396334
DTSTAMP:20231205T044450Z
CREATED:20231027T170533Z
DESCRIPTION:Topic: Near-field Cosmology with Stellar StreamsTBA\n\nSpeakers
: Nora Shipp\n\nStellar streams\, the tidal remnants of globular clusters
and dwarf\ngalaxies orbiting throughout the Milky Way’s halo\, are some of
the\nmost powerful tools in the study of near-field cosmology. In\npartic
ular\, they are sensitive probes of the distribution and\nproperties of da
rk matter across multiple scales\, from the smallest\nsubhalos\, to the en
tire dark matter halo\, as well as being excellent\ntracers of the growth
and structure of our Galaxy. Thanks to recent\nlarge photometric\, astrome
tric\, and spectroscopic surveys\, the\npopulation of stellar streams arou
nd the Milky Way is finally being\nrevealed. In this talk\, I will present
the discovery\,\ncharacterization\, and modeling of the Milky Way stellar
streams. I\nwill also present the first comparative study of stream popul
ations in\nobservations and cosmological simulations\, which revealed\ninc
onsistencies in orbital parameters\, as well as a wealth of\npotentially y
et to be detected stellar streams. In addition\, I will\npresent plans to
use upcoming surveys like the Rubin Observatory LSST\nin order to discover
and analyze tidal structures throughout the Milky\nWay and across the loc
al Universe. These data will further\nrevolutionize the study of near-fiel
d cosmology\, and reveal the\nanswers to critical questions about the stru
cture and assembly of our\nGalaxy and the nature of dark matter.
DTSTART:20231102T180000Z
DTEND:20231102T190000Z
LAST-MODIFIED:20231027T170840Z
LOCATION:Serin Hall Rm W330\, Rutgers and Zoom
SUMMARY:Rutgers University Astrophysics Seminar
URL:https://www.ias.edu/sns/events/rutgers-university-astrophysics-seminar-
31
END:VEVENT
BEGIN:VEVENT
UID:61373961-6463-4363-b164-626334626539
DTSTAMP:20231205T044450Z
CREATED:20230908T131511Z
DESCRIPTION:Topic: The Stable Homology of the Braid Group With Coefficients
Arising From the Hyperelliptic Representation\n\nSpeakers: Craig Westerla
nd\n\nThe braid group B_{2g+1} has a description in terms of the\nhyperell
iptic mapping class group of a curve X of genus g. This\nequips it with a
n action on V = H_1(X)\, and we may produce a wealth of\nnew representatio
ns S^{\lambda}(V) by applying Schur functors to V.\n The goal of this talk
is to describe the stable (in g) group\nhomology of these representations
. \n\n \n\nFollowing an idea of Randal-Williams in the setting of the ful
l\nmapping class group\, one may extract these homology groups as Taylor\n
coefficients of the functor given by the stable homology of the space\nof
maps from the universal hyperelliptic curve to a varying target\nspace. W
e compute that stable homology by way of a scanning\nargument\, much as in
Segal’s original computation of the stable\nhomology of configuration spa
ces.\n\n \n\nThis is joint work with Bergström\, Diaconu\, and Petersen.
Dan will\nspeak afterwards on the application of these results to the conj
ecture\nof Andrade-Keating on moments of quadratic L-functions in the func
tion\nfield setting.
DTSTART:20231102T190000Z
DTEND:20231102T200000Z
LAST-MODIFIED:20231102T215110Z
LOCATION:Institute for Advanced Study\, Simonyi Hall\, Room 101
SUMMARY:Special Seminar on Homological Stability and Number Theory
URL:https://www.ias.edu/math/events/special-seminar-homological-stability-a
nd-number-theory
END:VEVENT
BEGIN:VEVENT
UID:62623438-3638-4538-b731-366466656530
DTSTAMP:20231205T044450Z
CREATED:20230908T131259Z
DESCRIPTION:Topic: Moments of Families of Quadratic L-Functions Over Functi
on Fields Via Homotopy Theory\n\nSpeakers: Dan Petersen\n\nThis is a repor
t of joint work with Bergström-Diaconu-Westerland and\nMiller-Patzt-Randal
-Williams.\n\nBased on random matrix theory\, Conrey-Farmer-Keating-Rubins
tein-Snaith\nhave conjectured precise asymptotics for moments of families
of\nquadratic L-functions over number fields. There is an extremely\nsimil
ar function field analogue\, worked out by Andrade-Keating. I will\nexplai
n that one can relate this problem to understanding the homology\nof the b
raid group with certain symplectic coefficients. With\nBergström-Diaconu-W
esterland we compute the stable homology groups of\nthe braid groups with
these coefficients\, together with their\nstructure as Galois representati
ons. (This will be explained in Craig\nWesterland's lecture on Nov 2.) We
moreover show that the answer\nmatches the number-theoretic predictions. W
ith\nMiller-Patzt-Randal-Williams we prove an improved range for\nhomologi
cal stability with these coefficients. (This will be explained\nin my lect
ure on Nov 3.) Together\, these results imply the conjectured\nasymptotics
for all moments in the function field case\, for all\nsufficiently large
(but fixed) q.
DTSTART:20231102T203000Z
DTEND:20231102T213000Z
LAST-MODIFIED:20231103T112918Z
LOCATION:Institute for Advanced Study\, Simonyi Hall\, Room 101
SUMMARY:Joint PU/IAS Number Theory
URL:https://www.ias.edu/math/events/joint-puias-number-theory
END:VEVENT
BEGIN:VEVENT
UID:37643364-3363-4731-b364-386237663337
DTSTAMP:20231205T044450Z
CREATED:20230810T192256Z
DESCRIPTION:Topic: The Subleading Asymptotics of Symplectic Weyl Laws\,\n\n
Speakers: Oliver Edtmair\n\nSpectral invariants defined via Embedded Conta
ct Homology (ECH) or the\nclosely related Periodic Floer Homology (PFH) sa
tisfy a Weyl law:\nAsymptotically\, they recover symplectic volume. This W
eyl law has led\nto striking applications in dynamics (smooth closing lemm
a) and\nsymplectic geometry (simplicity conjecture). In this talk\, I will
\nreport on work in progress concerning the subleading asymptotics of\nsym
plectic Weyl laws. I will explain the connection to symplectic\npacking pr
oblems and the algebraic structure of groups of Hamiltonian\ndiffeomorphis
ms and homeomorphisms.\n
DTSTART:20231103T131500Z
DTEND:20231103T144500Z
LAST-MODIFIED:20231103T180543Z
LOCATION:Remote Access
SUMMARY:Joint IAS/Princeton/Montreal/Paris/Tel-Aviv Symplectic Geometry Zoo
minar
URL:https://www.ias.edu/math/events/joint-iasprincetonmontrealparistel-aviv
-symplectic-geometry-zoominar-128
END:VEVENT
BEGIN:VEVENT
UID:39333264-3733-4738-b161-613136653239
DTSTAMP:20231205T044450Z
CREATED:20231024T141759Z
DESCRIPTION: \nFriday\, November 3 through Sunday\, November 5\n\nClick her
e\n[https://indigenous.princeton.edu/events/third-annual-munsee-language-a
nd-history-symposium]\nfor details and registration.
DTSTART:20231103T133000Z
DTEND:20231105T170000Z
LAST-MODIFIED:20231031T195003Z
LOCATION:
SUMMARY:Munsee Language & History Symposium
URL:https://www.ias.edu/events/munsee-language-history-symposium
END:VEVENT
BEGIN:VEVENT
UID:38633333-3463-4166-b664-306337373831
DTSTAMP:20231205T044450Z
CREATED:20231027T171415Z
DESCRIPTION:Topic: General Discussion
DTSTART:20231103T163000Z
DTEND:20231103T173000Z
LAST-MODIFIED:20231027T171438Z
LOCATION:Dome Room\, Peyton Hall or Zoom
SUMMARY:Princeton University Astroplasmas Seminar
URL:https://www.ias.edu/sns/events/princeton-university-astroplasmas-semina
r-56
END:VEVENT
BEGIN:VEVENT
UID:38636238-6566-4333-a439-613235653934
DTSTAMP:20231205T044450Z
CREATED:20231023T184754Z
DESCRIPTION:Topic: What is a Bruhat-Tits Building?\n\nSpeakers: Annette Wer
ner
DTSTART:20231103T170000Z
DTEND:20231103T180000Z
LAST-MODIFIED:20231120T144428Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:What is...?
URL:https://www.ias.edu/math/events/what-16
END:VEVENT
BEGIN:VEVENT
UID:39633633-3366-4230-a666-336338326163
DTSTAMP:20231205T044450Z
CREATED:20230809T194605Z
DESCRIPTION:Topic: Analytic Rings\n\nSpeakers: Siqing Zhang\n\nThis talk is
an introduction to analytic rings. Some examples and\nnon-examples will b
e covered. Some nice properties of the module\ncategories will be proved.
DTSTART:20231103T183000Z
DTEND:20231103T203000Z
LAST-MODIFIED:20231031T183010Z
LOCATION:Princeton University\, Fine Hall 314
SUMMARY:Condensed Learning Seminar
URL:https://www.ias.edu/math/events/condensed-learning-seminar-2
END:VEVENT
BEGIN:VEVENT
UID:34373032-6436-4161-a232-333639313637
DTSTAMP:20231205T044450Z
CREATED:20230810T132519Z
DESCRIPTION:Topic: Optimization Problem Over the Space of Functions with Se
cond Order Bounded Variation\n\nSpeakers: Camillo Brena\n\nThis talk is a
discussion about the extremal points of the unit ball\nwith respect to the
Hessian-Schatten variation seminorm\, i.e. the\ntotal variation of the se
cond distributional differential with respect\nto the Schatten matrix norm
. The main result is an approximation\nresult of these extremal points wit
h continous and piecewise affine\nextremal points. Based on a work with L.
Ambrosio\, S. Aziznejad and M.\nUnser and on a work with L. Ambrosio and
S. Conti.
DTSTART:20231103T183000Z
DTEND:20231103T193000Z
LAST-MODIFIED:20231201T141113Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Analysis and Mathematical Physics
URL:https://www.ias.edu/math/events/analysis-and-mathematical-physics-15
END:VEVENT
BEGIN:VEVENT
UID:31396632-3664-4565-b466-363832363236
DTSTAMP:20231205T044450Z
CREATED:20231011T192042Z
DESCRIPTION:Topic: Uniform Twisted Homological Stability\n\nSpeakers: Dan P
etersen\n\nHomological stability is now well established as an organizing
\nprinciple and computational tool in algebraic topology and other\nareas.
In many cases it is of interest to obtain homological stability\nwith twi
sted coefficients\, and the standard choice of such\ncoefficients are the
*polynomial coefficient systems*. All\nknown approaches to homological sta
bility with polynomial\ncoefficients produce a stable range depending on t
he degree of\npolynomiality. I will explain a method of obtaining uniform
stable\nranges for some classes of groups and coefficients of natural\nint
erest. This has important consequences in arithmetic statistics\,\ndiscuss
ed in the number theory seminar on Nov 2. (Joint with Jeremy\nMiller\, Pet
er Patzt\, Oscar Randal-Williams.)
DTSTART:20231103T200000Z
DTEND:20231103T210000Z
LAST-MODIFIED:20231105T125918Z
LOCATION:Simonyi Hall101
SUMMARY:Special Seminar on Homological Stability and Number Theory
URL:https://www.ias.edu/events/special-seminar-homological-stability-and-nu
mber-theory-0
END:VEVENT
BEGIN:VEVENT
UID:37386239-6233-4535-b736-386535373033
DTSTAMP:20231205T044450Z
CREATED:20230908T143308Z
DESCRIPTION:Topic: The Cosmic Ultraviolet Baryon Survey (CUBS) VII: on the
warm-hot circumgalactic medium probed by OVI and NeVIII at z~0.4-0.7\n\nSp
eakers: Zhijie Qu\n\nEach week\, we hold a relatively informal seminar/dis
cussion series\nwith an emphasis on extra-galactic and large-scale structu
re\nastrophysics.\n\nDuring Galread a leader/visitor presents a recent pap
er to the\ndiscussion group. The PDF of the paper is projected onto a larg
e\nscreen\, and a guest explains the paper\, section by section\, in great
er\ndetail than may be explained within the text of the article. To aid\nw
ith discussion\, only the article PDF is presented -- no\npowerpoint-style
slides. Galread discussions are very friendly and\ninteractive.
DTSTART:20231106T160000Z
DTEND:20231106T170000Z
LAST-MODIFIED:20231103T164927Z
LOCATION:Zoom and Peyton Hall\, Grand Central
SUMMARY:Princeton University Galread [Galactic/Extragalactic Reading Group]
URL:https://www.ias.edu/sns/events/princeton-university-galread-galacticext
ragalactic-reading-group-80
END:VEVENT
BEGIN:VEVENT
UID:36353264-3433-4230-b935-633164626261
DTSTAMP:20231205T044450Z
CREATED:20230908T164457Z
DESCRIPTION:Topic: A Tale of Two Surveys: Leveraging Keck/HIRES for a Holis
tic View of Exoplanetary Systems\n\nSpeakers: Alex Polanski\n\nCurrently\,
our best window into the composition of exoplanets relies\non the synergy
of precise radii\, mass\, and stellar elemental\nabundance. The latter tw
o measurements have been enabled chiefly by\nhigh resolution\, ground-base
d spectroscopy of which Keck’s High\nResolution Echelle Spectrograph (HIRE
S) has been one of the premier\nfacilities for such observations for the p
ast 30 years. In this talk\,\nI will present the results of two surveys em
ploying HIRES spectra. \n\nFirst\, I will describe a major program aimed a
t measuring the masses\nof high-priority TESS planet candidates: the TESS
Keck Survey. I have\nled the effort to produce a fully uniform analysis of
all radial\nvelocity survey data\, resulting in mass constraints for 127
planets\nand candidate signals. This represents the primary top-level outc
ome\nof our survey. In this work\, I assess the success of our survey\,\nf
inding we have achieved at least a 3-sigma mass constraint for 74\nplanets
\, in addition to confirming 33 new planets from the TESS\nmission. I also
examine the validity of commonly used mass-radius\nrelations and find tha
t the Chen and Kipping 2017 relation\nsystematically underestimates planet
mass\, which may have implications\nfor future survey planning. \n\nNext\
, I will discuss the Keck Abundance Project\, a program to obtain\nprecise
stellar abundances for stars observed by HIRES. I have made\nmeasurements
for 15 chemical elements\, including those of primary\nimportance to plan
et formation\, for nearly 5\,000 F\, G\, and K stars.\nThese measurements
were made with KeckSpec\, an implementation of the\nmachine learning tool
the Cannon and I will describe the performance\nof KeckSpec across such a
large sample. Among our sample\,\napproximately 1\,700 are known planet ho
sts\, and their stellar chemical\nabundances are already serving as the re
levant baseline for studies of\ntheir atmospheres.
DTSTART:20231106T170000Z
DTEND:20231106T180000Z
LAST-MODIFIED:20231103T165301Z
LOCATION:Zoom and Peyton Dome Rm\, Princeton University
SUMMARY:Princeton University Extrasolar Planet Discussion Group
URL:https://www.ias.edu/sns/events/princeton-university-extrasolar-planet-d
iscussion-group-93
END:VEVENT
BEGIN:VEVENT
UID:37383032-6263-4530-b066-626237356637
DTSTAMP:20231205T044450Z
CREATED:20230810T194419Z
DESCRIPTION:Topic: Locally Maximal Closed Orbits of Reeb Flows\n\nSpeakers:
Marco Mazzucchelli\n\nA compact invariant set of a flow is called locally
maximal when it is\nthe largest invariant set in some neighborhood. In th
is talk\, based on\njoint work with Erman Cineli\, Viktor Ginzburg\, and B
asak Gurel\, I will\npresent a 'forced existence' result for the closed or
bits of certain\nReeb flows on spheres of arbitrary odd dimension:\n\n - I
f the contact form is non-degenerate and dynamically convex\, the\npresenc
e of a locally maximal closed orbit implies the existence of\ninfinitely m
any closed orbits. \n\n- If the locally maximal closed orbit is hyperbolic
\, the assertion of\nthe previous point also holds without the non-degener
acy and with a\nmilder dynamically convexity assumption. \n\nThese stateme
nts extend to the Reeb setting earlier results of Le\nCalvez-Yoccoz for su
rface diffeomorphisms\, and of Ginzburg-Gurel for\nHamiltonian diffeomorph
isms of certain closed symplectic manifolds. \n
DTSTART:20231106T173000Z
DTEND:20231106T184500Z
LAST-MODIFIED:20231106T195056Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Symplectic Geometry Seminar
URL:https://www.ias.edu/math/events/symplectic-geometry-seminar-3
END:VEVENT
BEGIN:VEVENT
UID:33326533-3662-4831-a264-353131393163
DTSTAMP:20231205T044450Z
CREATED:20230922T140600Z
DESCRIPTION:Topic: Galaxy bias renormalization group\n\nSpeakers: Henrique
Rubira\n\nThe effective field theory of large-scale structure allows for a
\nconsistent perturbative bias expansion of the rest-frame galaxy\ndensity
field. In this talk\, I present a systematic approach to\nrenormalize gal
axy bias and stochastic parameters using a finite\ncutoff scale Λ. I will
derive the differential equations of the\nWilson-Polchinski renormalizatio
n group that describe the evolution of\nthe finite-scale bias parameters w
ith Λ\, analogous to the\nβ-function running in QFT. We further provide th
e connection between\nthe finite-cutoff scheme and the renormalization pro
cedure for\nn-point functions that has been used as standard in the litera
ture so\nfar\; some inconsistencies in the treatment of renormalized bias
in\ncurrent EFT analyses are pointed out as well. The fixed-cutoff scheme
\nallows us to predict\, in a principled way\, the finite part of loop\nco
ntributions which is due to perturbative modes and which\, in the\nstandar
d renormalization approach\, is absorbed into counterterms. We\nexpect tha
t this will allow for the robust extraction of (a\nyet-to-be-determined am
ount of) additional cosmological information\nfrom galaxy clustering\, bot
h when using field-level techniques and\nn-point functions.
DTSTART:20231106T173000Z
DTEND:20231106T190000Z
LAST-MODIFIED:20231103T165506Z
LOCATION:IAS\, West Seminar Room
SUMMARY:Institute for Advanced Study/Princeton University Early Universe/Co
smology Lunch Discussion
URL:https://www.ias.edu/sns/events/institute-advanced-studyprinceton-univer
sity-early-universecosmology-lunch-discussion-66
END:VEVENT
BEGIN:VEVENT
UID:35613939-3562-4733-a565-323865633133
DTSTAMP:20231205T044450Z
CREATED:20230810T125615Z
DESCRIPTION:Topic: On the Birational Geometry of Matroids\n\nSpeakers: Anne
tte Werner\n\nThe theory of matroids provides a unified abstract treatment
of the\nconcept of dependence in linear algebra and graph theory. In this
talk\nwe explain Bergman fans of matroids\, and we investigate isomorphis
ms\nof Bergman fans for different fan structures. In particular\, we\nintr
oduce and study Cremona automorphisms. This is joint work with\nKris Shaw.
DTSTART:20231106T190000Z
DTEND:20231106T200000Z
LAST-MODIFIED:20231106T195224Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Members' Colloquium
URL:https://www.ias.edu/math/events/members-colloquium-55
END:VEVENT
BEGIN:VEVENT
UID:34633065-3731-4033-b561-386563323038
DTSTAMP:20231205T044450Z
CREATED:20230811T153739Z
DESCRIPTION:Topic: What is the K-theory of the Complex Numbers?\n\nSpeakers
: Dustin Clausen\n\nI will explain what the question means and how to make
it precise.\nThen I will give a conjectural answer. This is based on join
t work\nwith Peter Scholze.
DTSTART:20231106T213000Z
DTEND:20231106T223000Z
LAST-MODIFIED:20231201T141141Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Joint IAS/Princeton Arithmetic Geometry Seminar
URL:https://www.ias.edu/math/events/joint-iasprinceton-arithmetic-geometry-
seminar-6
END:VEVENT
BEGIN:VEVENT
UID:66343538-3737-4664-a635-343064333239
DTSTAMP:20231205T044450Z
CREATED:20230712T191558Z
DESCRIPTION:The Bahcall Lunch follow the astrophysics colloquium lecture.\n
Registration is required by 6pm the previous Thursday so a meal can be\npr
ovided. Email Amanda at cenker@ias.edu with questions.
DTSTART:20231107T173000Z
DTEND:20231107T183000Z
LAST-MODIFIED:20230901T171255Z
LOCATION:Simons Hall Dilworth Room
SUMMARY:Institute for Advanced Study / Princeton University Bahcall Lunch
URL:https://www.ias.edu/sns/events/institute-advanced-study-princeton-unive
rsity-bahcall-lunch-52
END:VEVENT
BEGIN:VEVENT
UID:63363864-6536-4639-a139-386262383465
DTSTAMP:20231205T044450Z
CREATED:20231103T174419Z
DESCRIPTION:Topic: Numerical methods for radiative hydrodynamics and genera
l relativity \n\nSpeakers: Chris White
DTSTART:20231107T190000Z
DTEND:20231107T200000Z
LAST-MODIFIED:20231103T174546Z
LOCATION:Peyton Hall\, Grand Central
SUMMARY:Princeton University Computational Astrophysics Club
URL:https://www.ias.edu/sns/events/princeton-university-computational-astro
physics-club-20
END:VEVENT
BEGIN:VEVENT
UID:35326466-6438-4437-b536-303036353832
DTSTAMP:20231205T044450Z
CREATED:20230712T201947Z
DESCRIPTION:Topic: The Albedos and Phase Curves of Celestial Bodies\n\nSpea
kers: Kevin Heng\n\nAffiliation: Ludwig Maximilian University of Munich\n
\nThe albedo of a celestial body is the fraction of incident starlight\nre
flected by it. The study of the albedos of Solar System objects is\nat lea
st a century old\, at least in the Western world. As examples:\nBond (1861
) speculated on the near-unity albedo of Jupiter\, while\nRussell (1916) o
bserved the opposition surge of the Moon near and at\nfull phase. The ligh
t of a planet or moon varying with orbital phase\nis known as its phase cu
rve. Modern astronomical facilities have\nenabled the measurement of phase
curves of reflected light and thermal\nemission from exoplanets (e.g. Kep
ler\, TESS\, CHEOPS\, Hubble\, Spitzer)\,\nwhich enables the investigation
of atmospheric dynamics and aerosols.\nIn the current talk\, I will begin
by reviewing the state of the art of\nobservations and phase curves of So
lar System objects and exoplanets.\nIn the second part\, I will concisely
review and discuss historically\nimportant work\, including seminal contri
butions by Lommel (1887)\,\nSeeliger (1888)\, Chandrasekhar (1960)\, Sobol
ev (1975) and Hapke\n(1981). These introductions set the stage for a detai
led discussion of\nour recent work on generalising these classic works to
derive\nclosed-form\, ab initio solutions for the geometric albedo and\nre
flected light phase curve. This novel theoretical framework is\napplied to
Kepler space telescope data of the hot Jupiter Kepler-7b\,\nwhere we demo
nstrate that one may infer fundamental aerosol\n(single-scattering albedo\
, scattering asymmetry factor) and\natmospheric (geometric albedo\, Bond a
lbedo\, phase integral) properties\nfrom precise photometry alone\, thus p
roviding powerful complementary\ninformation to spectra. Another case stud
y are the Cassini phase\ncurves of Jupiter\, which were measured in the ea
rly 2000s by the\nCassini space mission but never subjected to Bayesian in
ference. By\ninverting the Cassini phase curves\, we infer that aerosols
in the\nJovian atmosphere are large\, irregular\, polydisperse particles t
hat\nmay be responsible for causing coherent backscattering of sunlight. I
\nend by discussing the implications for interpreting data from the\nJames
Webb Space Telescope.
DTSTART:20231108T160000Z
DTEND:20231108T170000Z
LAST-MODIFIED:20231006T135645Z
LOCATION:Rubenstein Commons | Meeting Room 5
SUMMARY:Institute for Advanced Study Astrophysics Seminar
URL:https://www.ias.edu/sns/events/institute-advanced-study-astrophysics-se
minar-80
END:VEVENT
BEGIN:VEVENT
UID:34656437-3864-4663-b330-663433383939
DTSTAMP:20231205T044450Z
CREATED:20231006T141944Z
DESCRIPTION:Topic: Fourier Uniqueness and Interpolation I\, II\, III\n\nSpe
akers: Maryna Viazovska\n\nCan we reconstruct a function by knowing only a
subset of its values\nand a subset of the values of the function's Fourie
r transform?\nHow many values do we need to know for such a reconstruction
? Can we\ninterpolate a given subset of values? What are the possible\napp
lications of such interpolation? In this series of lectures\, we\nwill try
to answer these questions.\nIn the first lecture\, we will speak about th
e Cohn-Elkies linear\nprogramming bound for the sphere packing and how thi
s bound's analysis\nled to the discovery of a Fourier interpolation formul
a. The second\nlecture will discuss explicit constructions of Fourier uniq
ueness sets\nand Fourier interpolation formulas. The third lecture will fo
cus on\nanalytic approaches to Fourier uniqueness and interpolation.
DTSTART:20231108T160000Z
DTEND:20231108T170000Z
LAST-MODIFIED:20231108T151047Z
LOCATION:Simonyi Hall 101 and Remote Access - see Zoom link below
SUMMARY:Hermann Weyl Lectures
URL:https://www.ias.edu/math/events/hermann-weyl-lectures-36
END:VEVENT
BEGIN:VEVENT
UID:62303866-6163-4563-b638-656263343762
DTSTAMP:20231205T044450Z
CREATED:20230919T183036Z
DESCRIPTION:Topic: The Analytic de Rham Stack\n\nSpeakers: Juan Esteban Rod
riguez Camargo\n\nIn this talk\, we introduce the analytic de Rham stack f
or rigid\nvarieties over $Q_p$ (and more general analytic stacks). This ob
ject\nis an analytic incarnation of the (algebraic) de Rham stack of\nSimp
son\, and encodes a theory of analytic D-modules extending the\ntheory of
D-cap-modules of Ardakov and Wadsley. We mention how a very\ngeneral six f
unctor formalism can be construct in this set up\, as well\nas other featu
res such as Kashiwara equivalence and Poincaré duality\nfor smooth maps.
DTSTART:20231108T190000Z
DTEND:20231108T200000Z
LAST-MODIFIED:20231120T153846Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Special Year Seminar
URL:https://www.ias.edu/math/events/special-year-seminar-3
END:VEVENT
BEGIN:VEVENT
UID:39646366-3762-4632-b537-376234643463
DTSTAMP:20231205T044450Z
CREATED:20231024T121414Z
DESCRIPTION:Topic: Sphere Packings\, Spectral Gaps and the Conformal Bootst
rap\n\nSpeakers: Dalimil Mazac\n\nI will discuss infinite-dimensional line
ar programs producing bounds\non the spectral gap in various settings. Thi
s includes new bounds on\nthe spectral gap of hyperbolic manifolds as well
as the Cohn+Elkies\nbound on the density of sphere packings. The bounds a
llow us to\nessentially determine the complete set of spectral gaps achiev
ed by\nhyperbolic 2-orbifolds. The linear programs involved have been the
\nsubject of intense study by mathematical physicists in the context of\nt
he conformal bootstrap. \n\nI will review the method of analytic extremal
functionals\, introduced\nby the speaker to prove sharp bounds in the conf
ormal bootstrap. When\nused within the Cohn+Elkies linear program\, this m
ethod reproduces the\ngroundbreaking solution of Viazovska et al of the sp
here packing\nproblem in dimensions 8 and 24\, as well as the interpolatio
n basis\nused in the proof of universal optimality of the E8 and Leech lat
tice.\nThe connections covered in this talk offer a broader framework for
\nstudying optimality in infinite-dimensional linear programs.
DTSTART:20231108T213000Z
DTEND:20231108T223000Z
LAST-MODIFIED:20231108T214754Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Special Seminar on Sphere Packing
URL:https://www.ias.edu/math/events/special-seminar-sphere-packing
END:VEVENT
BEGIN:VEVENT
UID:65393730-6461-4239-a163-643062306534
DTSTAMP:20231205T044450Z
CREATED:20230810T190634Z
DESCRIPTION:Topic: Lambda Rings\, Random Matrices\, and L-Functions\n\nSpea
kers: Sean Howe\n\nClassical probability theory is set up to handle random
variables\nwhose values are a single complex number. What happens if our
random\nvariable is instead a multi-set of complex numbers? For example\,
on\nthe group of n by n orthogonal matrices\, you might want to study the
\nrandom variable that sends a matrix to its eigenvalues. Or\, if you're\n
a number theorist\, you might want to consider the random variable on\nthe
finite set of smooth plane curves over a finite field $F_q$ that\nsends a
curve C to the zeroes of its L-function. In this conversation\,\nwe'll ex
plain how a theory of probability for random variables valued\nin an algeb
raic structure called a lambda ring can help study these\nquestions. As a
concrete example\, we will sketch how this perspective\ncan be used to giv
e a simple proof a theorem of Diaconis and\nShahshahani on traces of power
s in classical groups\, and how this\nrelates to the behavior of zeros of
L-functions.
DTSTART:20231108T230000Z
DTEND:20231109T010000Z
LAST-MODIFIED:20231103T171451Z
LOCATION:Birch Garden\, Simons Hall
SUMMARY:Mathematical Conversations
URL:https://www.ias.edu/math/events/mathematical-conversations-265
END:VEVENT
BEGIN:VEVENT
UID:61393962-6165-4933-b865-393438333831
DTSTAMP:20231205T044450Z
CREATED:20231002T173536Z
DESCRIPTION:Topic: The Global p-adic Simpson Correspondence for Generalized
Representations\n\nSpeakers: Akhil Mathew
DTSTART:20231109T150000Z
DTEND:20231109T170000Z
LAST-MODIFIED:20231120T153920Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Special Year Learning Seminar
URL:https://www.ias.edu/math/events/special-year-learning-seminar-18
END:VEVENT
BEGIN:VEVENT
UID:65626130-3264-4664-b362-623636353664
DTSTAMP:20231205T044450Z
CREATED:20231024T172822Z
DESCRIPTION:Topic: The Shintani–Faddeev Modular Cocycle\n\nSpeakers: Gene K
opp\n\nWe ask the question\, “how does the infinite $q$-Pochhammer symbol
\ntransform under modular transformations?” and connect the answer to\ntha
t question to the Stark conjectures. The infinite $q$-Pochhammer\nsymbol t
ransforms by a generalized factor of automorphy\, or modular\n$1$-cocycle\
, that is analytic on a cut complex plane. This\n“Shintani–Faddeev modular
cocycle” is an ${\rm\nSL}_2(\mathbb{Z})$-parametrized family of functions
generalizing\nShintani’s double sine function and Faddeev’s noncompact qu
antum\ndilogarithm. We relate real multiplication values of the\nShintani–
Faddeev modular cocycle to exponentials of certain\nderivative $L$-values\
, conjectured by Stark to be algebraic units\ngenerating abelian extension
s of real quadratic fields.
DTSTART:20231109T213000Z
DTEND:20231109T223000Z
LAST-MODIFIED:20231109T232100Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Joint PU/IAS Number Theory
URL:https://www.ias.edu/math/events/joint-puias-number-theory-3
END:VEVENT
BEGIN:VEVENT
UID:62333966-6534-4739-a135-653632663062
DTSTAMP:20231205T044450Z
CREATED:20231103T172411Z
DESCRIPTION:Topic: Cosmic ray acceleration by merger shocks in galaxy clust
ers \n\nSpeakers: Kamlesh Rajpurohit\n\nGalaxy clusters undergoing mergers
host spectacular megaparsec-scale\,\nhighly polarized diffuse radio emiss
ion known as radio relics. With\ntheir enormous extent\, these sources tra
ce the largest particle\naccelerators in the Universe. Relics are usually
found at the cluster\noutskirts and illuminated by relativistic electrons
accelerated by\nmerger-driven shock fronts in the intracluster medium (ICM
). However\,\nthe currently proposed particle acceleration mechanisms are
not\nefficient enough to accelerate particles from the thermal pool of the
\nICM. There is increasing observational evidence that requires us to\ncon
sider the unknown acceleration processes across the entire lifetime\nof cl
usters\, not only in the proximity of large merger events. The new\ngenera
tion of radio telescopes permits wideband spectro-polarimetric\nradio obse
rvations with unprecedented sensitivity and spatial\nresolution\, thus all
owing the investigation of the finest details. In\nthis talk\, I will disc
uss recent results obtained with high-resolution\nradio observations of so
me well-known relics. These findings challenge\nour understanding of parti
cle acceleration mechanisms in galaxy\nclusters and highlight the need for
additional theoretical work to\nuncover the underlying physics.
DTSTART:20231110T173000Z
DTEND:20231110T183000Z
LAST-MODIFIED:20231103T172632Z
LOCATION:Dome Room\, Peyton Hall or Zoom
SUMMARY:Princeton University Astroplasmas Seminar
URL:https://www.ias.edu/sns/events/princeton-university-astroplasmas-semina
r-57
END:VEVENT
BEGIN:VEVENT
UID:66343136-3261-4364-a535-356332626130
DTSTAMP:20231205T044450Z
CREATED:20231013T172950Z
DESCRIPTION:Topic: What is...the Sum-Product Problem?\n\nSpeakers: Sarah Pe
luse
DTSTART:20231110T180000Z
DTEND:20231110T190000Z
LAST-MODIFIED:20231120T144334Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:What is...?
URL:https://www.ias.edu/math/events/what-14
END:VEVENT
BEGIN:VEVENT
UID:30613634-3331-4338-b935-653039626631
DTSTAMP:20231205T044450Z
CREATED:20230810T132540Z
DESCRIPTION:Topic: Probabilistic Scaling\, Propagation of Randomness and In
variant Gibbs Measures\n\nSpeakers: Andrea Nahmod\n\nIn this talk\, we wil
l start by describing how classical tools from\nprobability offer a robust
framework to understand the dynamics of\nwaves via appropriate ensembles
on phase space rather than particular\nmicroscopic dynamical trajectories.
We will continue by explaining the\nfundamental shift in paradigm that ar
ises from the “correct”\nscaling in this context and how it opened the doo
r to unveil the\nrandom structures of nonlinear waves that live on high fr
equencies and\nfine scales as they propagate. We will then discuss how the
se ideas\nbroke the logjam in the study of the Gibbs measures associated t
o\nnonlinear Schrödinger equations in the context of equilibrium\nstatisti
cal mechanics and of the hyperbolic $\Phi^4_3$ model in the\ncontext of co
nstructive quantum field theory. We will end with some\nopen challenges ab
out the long-time propagation of randomness and\nout-of-equilibrium dynami
cs.
DTSTART:20231110T193000Z
DTEND:20231110T203000Z
LAST-MODIFIED:20231201T141206Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Analysis and Mathematical Physics
URL:https://www.ias.edu/math/events/analysis-and-mathematical-physics-16
END:VEVENT
BEGIN:VEVENT
UID:33353239-3965-4265-b438-303239613934
DTSTAMP:20231205T044450Z
CREATED:20230809T194636Z
DESCRIPTION:Topic: Solid Abelian Groups\n\nSpeakers: Juan Esteban Rodriguez
Camargo\n\nWe will discuss the notion of solid abelian groups.
DTSTART:20231110T193000Z
DTEND:20231110T213000Z
LAST-MODIFIED:20231102T121221Z
LOCATION:Princeton University\, Fine Hall 314
SUMMARY:Condensed Learning Seminar
URL:https://www.ias.edu/math/events/condensed-learning-seminar-3
END:VEVENT
BEGIN:VEVENT
UID:33613763-3532-4031-a233-336435663334
DTSTAMP:20231205T044450Z
CREATED:20230908T143352Z
DESCRIPTION:Topic: The impact of cosmic rays on the interstellar medium and
galactic outflows of Milky Way analogues\n\nSpeakers: Francisco (Curro) R
odriguez Montero\n\nEach week\, we hold a relatively informal seminar/disc
ussion series\nwith an emphasis on extra-galactic and large-scale structur
e\nastrophysics.\n\nDuring Galread a leader/visitor presents a recent pape
r to the\ndiscussion group. The PDF of the paper is projected onto a large
\nscreen\, and a guest explains the paper\, section by section\, in greate
r\ndetail than may be explained within the text of the article. To aid\nwi
th discussion\, only the article PDF is presented -- no\npowerpoint-style
slides. Galread discussions are very friendly and\ninteractive.
DTSTART:20231113T160000Z
DTEND:20231113T170000Z
LAST-MODIFIED:20231114T190705Z
LOCATION:Zoom and Peyton Hall\, Grand Central
SUMMARY:Princeton University Galread [Galactic/Extragalactic Reading Group]
URL:https://www.ias.edu/sns/events/princeton-university-galread-galacticext
ragalactic-reading-group-81
END:VEVENT
BEGIN:VEVENT
UID:30623938-3465-4166-a136-383331363339
DTSTAMP:20231205T044450Z
CREATED:20230809T190029Z
DESCRIPTION:Topic: A Definition of Spectral Gap for Nonreversible Markov Ch
ains\n\nSpeakers: Sourav Chatterjee\n\nWhile the notion of spectral gap is
a fundamental and very useful\nfeature of reversible Markov chains\, ther
e is no standard analogue of\nthis notion for nonreversible chains. In thi
s talk\, I will present a\nsimple proposal for spectral gap of nonreversib
le chains\, and show\nthat it shares all of the nice properties of the rev
ersible spectral\ngap. The most important property of this spectral gap is
that its\nreciprocal gives an exact characterization\, with upper and low
er\nbounds\, of the time required for convergence of empirical averages.\n
This works even if there is no contraction\, such as in dynamical\nsystems
.
DTSTART:20231113T161500Z
DTEND:20231113T171500Z
LAST-MODIFIED:20231120T153212Z
LOCATION:Wolfensohn Hall and Remote Access
SUMMARY:Computer Science/Discrete Mathematics Seminar I
URL:https://www.ias.edu/math/events/computer-sciencediscrete-mathematics-se
minar-i-551
END:VEVENT
BEGIN:VEVENT
UID:31343833-3761-4866-a230-346234636364
DTSTAMP:20231205T044450Z
CREATED:20230908T164521Z
DESCRIPTION:Topic: Thermal and magnetic history of rocky exoplanets.\n\nSpe
akers: Jisheng Zhang\n\nPlanetary-scale magnetic fields provide a unique w
indow into a\nplanet's deep interior. From the magnetic field of Earth to
that of\nJupiter\, the existence of such fields is tied to the presence of
an\nelectrically conductive convecting fluid (dynamo source region) in th
e\ninterior. Thus\, detections of planetary-scale magnetic field signals\n
offer constraints on the planets’ thermal state\, interior structure\,\nan
d dynamics. In this thesis\, we present thermal evolution\ncalculations fo
r rocky exoplanets. We aim to determine whether\nsuper-Earths can host dyn
amo-generated magnetic fields and explore how\ndynamo lifetimes scale with
planet properties (such as planet mass\,\nM_pl\, and core mass fraction\,
CMF). To achieve this\, we couple a 1D\nthermal evolution model with a He
nyey solver to calculate their\nthermal evolution. The code solves the ene
rgy balance equation in the\nFe-dominated core and the silicate mantle. We
use a modified mixing\nlength formulation to model convection in the sili
cate mantle with low\nand high Reynolds numbers. In addition\, by includin
g the Henyey\nsolver\, the model self-consistently accounts for adjustment
s in the\ninterior structure as the planet evolves in time. We explore the
\npossibility of the planet-hosting a dynamo source in its Fe-dominated\nc
ore and/or magma ocean. We find that the heat loss rate of the core\nscale
s with M_pl. This results in a greater dynamo lifetime in the\ncore of a m
ore massive planet\, as long as convection shuts off before\nthe core full
y solidifies. However\, the dynamo lifetime in the core\ndecreases with in
creasing M_pl if the core fully solidifies before\nconvection shuts off\,
owing to the short lifetime of the liquid core\nassociated with the high c
ore heat loss rate. Depending on our choices\nof the rheology of post-pero
vskite\, we predict 6M_Earth planet with\nCMF=0.1 and 3M_Earth planet with
CMF=0.1 to have the longest dynamo\nlifetimes in their cores. In addition
\, a magma ocean could only host a\ndynamo if its melt fraction is high en
ough to have liquid-like\nconvection. The dynamo in the magma ocean in an
Earth-like planet\n(M_pl=1M_Earth and CMF=0.33) could only last ~0.25Myr.
However\, a\nmagma ocean may sustain a long-term dynamo on a lava planet o
r a\nsub-Neptune\, whose silicate mantle could stay molten or partially\nm
olten on a billion-year timescale. Future studies of these planets\nmay sh
ed light on the role of a magma ocean sustaining a\nplanetary-scale magnet
ic field.
DTSTART:20231113T170000Z
DTEND:20231113T180000Z
LAST-MODIFIED:20231114T190753Z
LOCATION:Zoom and Peyton Dome Rm\, Princeton University
SUMMARY:Princeton University Extrasolar Planet Discussion Group
URL:https://www.ias.edu/sns/events/princeton-university-extrasolar-planet-d
iscussion-group-94
END:VEVENT
BEGIN:VEVENT
UID:35383639-3564-4130-a433-653032316564
DTSTAMP:20231205T044450Z
CREATED:20230922T140430Z
DESCRIPTION:Topic: New Aspects of Local Primordial non-Gaussianity in Galax
y Surveys\n\nSpeakers: James Sullivan\n\nA signal of Local Primordial non-
Gaussianity (LPNG) in the\ncosmological density field heralds the presence
of multiple fields in\nthe inflationary era. Optical and NIR galaxy surve
ys will soon exceed\nthe sensitivity of the Cosmic Microwave Background an
d become the most\npowerful probe of such a signal. I will present recent
and current\nwork on the connection between galaxies tracing large-scale s
tructure\nand LPNG in the early universe. Specifically\, I will detail how
\nsplitting a population of galaxies in a survey by their clustering\nprop
erties can increase the survey sensitivity to LPNG if host halo\ninformati
on beyond mass is considered. I will also discuss a new\ntechnique for est
imating the response of galaxy number density to the\npresence of LPNG (th
e LPNG bias) directly from survey data. Finally\, I\nwill show the results
of a consistency test of the large-scale\nperturbative biasing framework
at the field level in the context of\nLPNG.
DTSTART:20231113T173000Z
DTEND:20231113T190000Z
LAST-MODIFIED:20231114T190641Z
LOCATION:Peyton Hall\, Grand Central
SUMMARY:Institute for Advanced Study/Princeton University Early Universe/Co
smology Lunch Discussion
URL:https://www.ias.edu/sns/events/institute-advanced-studyprinceton-univer
sity-early-universecosmology-lunch-discussion-64
END:VEVENT
BEGIN:VEVENT
UID:65643234-3835-4538-b064-393561333361
DTSTAMP:20231205T044450Z
CREATED:20230811T132734Z
DESCRIPTION:Topic: Symplectic Capacities of Domains Close to a Ball and Geo
desics in the Space of Contact Forms\n\nSpeakers: Alberto Abbondandolo\n\n
An old open question in symplectic geometry asks whether all\nnormalised s
ymplectic capacities coincide for convex domains in the\nstandard symplect
ic vector space. I will show that this question has a\npositive answer for
smooth convex domains which are $C^2$-close to a\nEuclidean ball. This is
related to the question of existence of\nminimising geodesics in the spac
e of contact forms on a closed contact\nmanifold equipped with a Banach-Ma
zur-like metric. On the other hand\,\nthere are smooth domains which are a
rbitrary $C^1$-close to the ball\nfor which the ball capacity is strictly
smaller than the cylindrical\ncapacity. This talk is based on recent joint
work with Gabriele\nBenedetti and Oliver Edtmair.\n \n\n \n\n
DTSTART:20231113T173000Z
DTEND:20231113T184500Z
LAST-MODIFIED:20231113T210141Z
LOCATION:Rubenstein Commons | Meeting Room 5
SUMMARY:Symplectic Geometry Seminar
URL:https://www.ias.edu/math/events/symplectic-geometry-seminar-9
END:VEVENT
BEGIN:VEVENT
UID:32666637-3664-4535-a638-383637366462
DTSTAMP:20231205T044450Z
CREATED:20231004T122314Z
DESCRIPTION:Topic: The Iterative Win-Win Method\, and Explicit Construction
s (without) Using It\n\nSpeakers: Hanlin Ren\n\nExplicit constructions of
'random-like' objects play an important role\nin complexity theory and pse
udorandomness. For many important objects\nsuch as prime numbers and rigid
matrices\, it remains elusive to find\nfast deterministic algorithms for
constructing them unconditionally\,\ndespite the fact that these objects a
re abundant and can be easily\nfound using randomness.\n\nThis lecture wil
l focus on two recent results: (1) an infinitely-often\npseudodeterministi
c construction for primes (and in fact any dense\nproperty in polynomial t
ime)\; (2) a pseudodeterministic algorithm for\nthe range avoidance proble
m with an NP oracle\, which implies novel\nnear-maximum circuit lower boun
ds. Previously\, only\nsubexponential-time algorithms are known for both e
xplicit\nconstruction problems. The main theme underlying both results is
a new\niterative win-win method that improves upon previous win-win argume
nts\nand leads to polynomial time bounds.\n\nThe first half of the lecture
will provide basic backgrounds of the\niterative win-win method\, offerin
g a high-level introduction. The\nsecond half will elaborate on the result
(2). If time permits\, we will\nalso explore the recent surprising improv
ement by Li\n(https://eccc.weizmann.ac.il/report/2023/156) that gets rid o
f the\niterative win-win method and proves an almost-everywhere\nexponenti
al-size circuit lower bound.\n\nBased on joint works with Lijie Chen\, Shu
ichi Hirahara\, Zhenjian Lu\,\nIgor Oliveira\, and Rahul Santhanam. The re
sults on circuit lower\nbounds and range avoidance are subsumed by the wor
k of Zeyong Li.
DTSTART:20231114T153000Z
DTEND:20231114T173000Z
LAST-MODIFIED:20231120T153239Z
LOCATION:Wolfensohn Hall and Remote Access
SUMMARY:Computer Science/Discrete Mathematics Seminar II
URL:https://www.ias.edu/math/events/computer-sciencediscrete-mathematics-se
minar-ii-551
END:VEVENT
BEGIN:VEVENT
UID:31373436-6262-4364-b637-393365306663
DTSTAMP:20231205T044450Z
CREATED:20230712T191626Z
DESCRIPTION:The Bahcall Lunch follow the astrophysics colloquium lecture.\n
Registration is required by 6pm the previous Thursday so a meal can be\npr
ovided. Email Amanda at cenker@ias.edu with questions.
DTSTART:20231114T173000Z
DTEND:20231114T183000Z
LAST-MODIFIED:20230901T171315Z
LOCATION:Simons Hall Dilworth Room
SUMMARY:Institute for Advanced Study / Princeton University Bahcall Lunch
URL:https://www.ias.edu/sns/events/institute-advanced-study-princeton-unive
rsity-bahcall-lunch-53
END:VEVENT
BEGIN:VEVENT
UID:66663932-3631-4165-b363-636461646431
DTSTAMP:20231205T044450Z
CREATED:20230712T202021Z
DESCRIPTION:Topic: Data-Driven Strong Lensing Science in the Era of Large S
ky Surveys\n\nSpeakers: Laurence Perreault-Levasseur\n\nAffiliation: Unive
rsity of Montreal\n\nDespite the remarkable success of the standard model
of cosmology\, the\nlambda CDM model\, at predicting the observed structur
e of the universe\nover many scales\, very little is known about the funda
mental nature of\nits principal constituents: dark matter and dark energy.
In the coming\nyears\, new surveys and telescopes will provide an opportu
nity to probe\nthese unknown components. Strong gravitational lensing is e
merging as\none of the most promising probes of the nature of dark matter\
, as it\ncan\, in principle\, measure its clustering properties on sub-gal
actic\nscales. The unprecedented volumes of data that will be produced by
\nupcoming surveys like LSST\, however\, will render traditional analysis
\nmethods entirely impractical. In recent years\, machine learning has\nbe
en transforming many aspects of the computational methods we use in\nastro
physics and cosmology. I will share our recent work in developing\nmachine
learning tools for the analysis of strongly lensed systems.
DTSTART:20231116T160000Z
DTEND:20231116T170000Z
LAST-MODIFIED:20231114T190532Z
LOCATION:Bloomberg Lecture Hall
SUMMARY:Institute for Advanced Study Astrophysics Seminar
URL:https://www.ias.edu/sns/events/institute-advanced-study-astrophysics-se
minar-81
END:VEVENT
BEGIN:VEVENT
UID:32343434-3665-4563-b465-306133363138
DTSTAMP:20231205T044450Z
CREATED:20230908T131325Z
DESCRIPTION:Topic: A Local Twisted Trace Formula For Some Spherical Varieti
es\n\nSpeakers: Chen Wan\n\nIn this talk\, I will discuss the geometric ex
pansion of a local\ntwisted trace formula for some special varieties. This
generalizes the\nlocal (twisted) trace formula for reductive groups prove
d by Arthur\nand Waldspurger. By applying the trace formula\, we prove a\n
multiplicity formula for these spherical varieties. And I will also\ndiscu
ss some applications to the multiplicity of the Galois model and\nthe unit
ary Shalika model. This is a joint work with Raphael\nBeuzart-Plessis.
DTSTART:20231116T213000Z
DTEND:20231116T223000Z
LAST-MODIFIED:20231109T194722Z
LOCATION:*Princeton University\, Fine 214*
SUMMARY:Joint PU/IAS Number Theory
URL:https://www.ias.edu/math/events/joint-puias-number-theory-1
END:VEVENT
BEGIN:VEVENT
UID:32353962-6332-4362-b936-306535386165
DTSTAMP:20231205T044450Z
CREATED:20230810T192548Z
DESCRIPTION:Topic: A Knot Floer Stable Homotopy Type\n\nSpeakers: Ciprian M
anolescu\n\nGiven a grid diagram for a knot or link in the three-sphere\,
we\nconstruct a spectrum whose homology is the knot Floer homology of . We
\nconjecture that the homotopy type of the spectrum is an invariant of .\n
Our construction does not use holomorphic geometry\, but rather builds\non
the combinatorial definition of grid homology. We inductively\ndefine mod
els for the moduli spaces of pseudo-holomorphic strips and\ndisk bubbles\,
and patch them together into a framed flow category. The\ninductive step
relies on the vanishing of an obstruction class that\ntakes values in a co
mplex of positive domains with partitions. (This\nis joint work with Sucha
rit Sarkar.)
DTSTART:20231117T141500Z
DTEND:20231117T154500Z
LAST-MODIFIED:20231117T183218Z
LOCATION:Remote Access
SUMMARY:Joint IAS/Princeton/Montreal/Paris/Tel-Aviv Symplectic Geometry Zoo
minar
URL:https://www.ias.edu/math/events/joint-iasprincetonmontrealparistel-aviv
-symplectic-geometry-zoominar-130
END:VEVENT
BEGIN:VEVENT
UID:64613566-6165-4364-a132-336630643265
DTSTAMP:20231205T044450Z
CREATED:20231114T191023Z
DESCRIPTION:Topic: Large-scale magnetic-field generation in turbulent black
-hole accretion disks and its imprint on black hole spin\n\nSpeakers: Jona
tan Jacquemin Ide\n\nJetted astrophysical phenomena with black hole (BH) e
ngines\, including\nbinary mergers\, jetted tidal disruption events\, and
X-ray binaries\,\nrequire a large-scale vertical magnetic field for effici
ent jet\nformation. I will present a possible mechanism for generating th
ese\ncrucial large-scale magnetic fields\, using 3D global general\nrelati
vistic magnetohydrodynamical (MHD) simulations of accretion\ndisks. I find
that the dynamo mechanism can be best understood as a\nnonlinear outcome
of the magnetorotational instability (MRI) and\nlarge-scale advection. We
characterize the complete dynamo mechanism\nwith two timescales: one for l
ocal magnetic field generation and one\nfor large-scale advection. The des
cription and understanding of the\ndynamo mechanism pave the way toward a
better understanding of jet\nlaunching. \n\nI will also describe the conse
quences of the large-scale vertical\nmagnetic fields on the black hole. I
will show that jet launching\nthrough a large-scale field leads to efficie
nt spin-down of the\ncentral black hole\, reducing the dimensionless black
hole spin from\na=1 to a=0.2 after accreting only 20% of its initial mass
. By\nseparating the contributions of the accretion disk and the large-sca
le\nmagnetic field\, we constructed a simplified black hole spin evolution
\nmodel. I used this model to explore the consequence of black hole\nspin-
down in the context of collapsing stars. My results show that\ncollapsar b
lack holes are born slowly spinning and should remain\nslowly spinning\, c
onsistent with LIGO/VIRGO/KARGA constraints on black\nhole spin.
DTSTART:20231117T173000Z
DTEND:20231117T183000Z
LAST-MODIFIED:20231114T191119Z
LOCATION:Dome Room\, Peyton Hall or Zoom
SUMMARY:Princeton University Astroplasmas Seminar
URL:https://www.ias.edu/sns/events/princeton-university-astroplasmas-semina
r-58
END:VEVENT
BEGIN:VEVENT
UID:62653136-3434-4563-b036-356635313061
DTSTAMP:20231205T044450Z
CREATED:20230908T143441Z
DESCRIPTION:Topic: Chemical Doppelgangers in GALAH DR3: the Distinguishing
Power of Neutron-Capture Elements Among Milky Way Disk Stars\n\nSpeakers:
Catherine Manea\n\nEach week\, we hold a relatively informal seminar/discu
ssion series\nwith an emphasis on extra-galactic and large-scale structure
\nastrophysics.\n\nDuring Galread a leader/visitor presents a recent paper
to the\ndiscussion group. The PDF of the paper is projected onto a large
\nscreen\, and a guest explains the paper\, section by section\, in greate
r\ndetail than may be explained within the text of the article. To aid\nwi
th discussion\, only the article PDF is presented -- no\npowerpoint-style
slides. Galread discussions are very friendly and\ninteractive.
DTSTART:20231120T160000Z
DTEND:20231120T170000Z
LAST-MODIFIED:20231117T170958Z
LOCATION:Zoom and Peyton Hall\, Grand Central
SUMMARY:Princeton University Galread [Galactic/Extragalactic Reading Group]
URL:https://www.ias.edu/sns/events/princeton-university-galread-galacticext
ragalactic-reading-group-82
END:VEVENT
BEGIN:VEVENT
UID:38323332-3765-4462-a532-373936333237
DTSTAMP:20231205T044450Z
CREATED:20230809T190053Z
DESCRIPTION:Topic: Strong Spatial Mixing for Colorings on Trees and its Alg
orithmic Applications\n\nSpeakers: Nitya Mani\n\nStrong spatial mixing (SS
M) is an important and widely studied\nquantitative notion of 'correlation
decay' for a variety of natural\ndistributions arising in statistical phy
sics\, probability theory\, and\ntheoretical computer science. One of the
most widely studied such\ndistributions is the uniform distribution over p
roper $q$-colorings on\na maximum degree $\Delta$ graph\, $\mu$. Provided
that $q \ge \Delta +\n1$\, any such graph has at least one proper $q$-colo
ring that can be\nidentified via e.g. a greedy search. It is a longstandin
g folklore\nconjecture that whenever $q$ satisfies this minimal inequality
\, $\mu$\nexhibits SSM and the correlations between the colors of vertices
in a\nsample from $\mu$ decay exponentially fast in the graph distance\nb
etween the vertices. However\, even the specialization of this basic\nques
tion to bounded-degree trees has remained wide open\, highlighting\nhow mu
ch there still is to learn about random colorings.\n\nApart from the nice
structural consequences of SSM\, notions of\ncorrelation decay (even restr
icted to trees) are of significant\ninterest in the theoretical computer s
cience community\; it is widely\nbelieved that as long as SSM holds on bou
nded-degree trees with $q$\ncolors\, one could obtain an efficient sampler
for $q$-colorings on all\nbounded-degree graphs via simple Markov chain a
lgorithms. \n\nWe essentially resolve the SSM conjecture on trees\, holds
for random\n$q$-colorings on trees of maximum degree $\Delta$ whenever $q
\ge\n\Delta + 3$. In the algorithmic direction\, we use SSM on trees to\ne
stablish optimal mixing of the Glauber dynamics (a classical Markov\nchain
) for sampling $q$-colorings on graphs of maximum degree $\Delta$\nand gir
th $g$_ _whenever $q \ge \Delta+3$.\n\nJoint work with Zongchen Chen\, Kui
kui Liu\, and Ankur Moitra.\n\n-------------------------
DTSTART:20231120T161500Z
DTEND:20231120T171500Z
LAST-MODIFIED:20231120T143852Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Computer Science/Discrete Mathematics Seminar I
URL:https://www.ias.edu/math/events/computer-sciencediscrete-mathematics-se
minar-i-552
END:VEVENT
BEGIN:VEVENT
UID:31306334-3431-4139-b631-393965383131
DTSTAMP:20231205T044450Z
CREATED:20230908T164543Z
DESCRIPTION:Topic: The Epoch of Giant Planet Migration: Searching for Young
Planets within the Noise\n\nSpeakers: Quang Tran\n\nThe presence of close
-in giant planets indicates that inward orbital\nmigration is a common phe
nomenon. However\, the processes by which\nthese gas giants arrived at the
ir locations are poorly constrained as\nradial velocity (RV) surveys have
largely avoided young stars. Young\nstars have intrinsic astrophysical RV
'jitter' primarily driven by\nrotationally-modulated starspots which can o
verwhelm planetary signals\nat visible wavelengths. Fortunately\, moving i
nto the near-infrared\n(NIR) has been shown to reduce this variability. I
am carrying out a\nlarge precision RV survey of intermediate-age (20-200 M
yr) GK dwarfs\nin young moving groups with the Habitable Zone Planet Finde
r (HPF)\, a\nstabilized high resolution\, NIR spectrograph located at the
\nHobby-Eberly Telescope. This program will clarify the timescale and\ndom
inant physical mechanism of giant planet migration by measuring\ntheir occ
urrence rate at young ages and comparing them to established\nfrequencies
at older ages. In this talk\, I will summarize the survey\ndesign and init
ial results\, including an overview of the first\ncandidate planets to eme
rge from this program. Furthermore\, I will\ndiscuss my adopted stellar ac
tivity mitigation schemes for these\ncandidates and also present a novel G
P framework that can\nsimultaneously model activity-based variability in b
oth photometric\nand RV time series. For synthetic data sets with simulate
d starspot\ncontamination\, this new method improves residual scatter from
\npredicting stellar activity signals as compared to other GP\ntechniques\
, facilitating the possibility of finding giant planets\naround young star
s.
DTSTART:20231120T170000Z
DTEND:20231120T180000Z
LAST-MODIFIED:20231117T163827Z
LOCATION:Zoom and Peyton Dome Rm\, Princeton University
SUMMARY:Princeton University Extrasolar Planet Discussion Group
URL:https://www.ias.edu/sns/events/princeton-university-extrasolar-planet-d
iscussion-group-95
END:VEVENT
BEGIN:VEVENT
UID:30333561-6565-4830-b061-646462313864
DTSTAMP:20231205T044450Z
CREATED:20230922T140626Z
DESCRIPTION:Topic: Probing primordial non-Gaussianity by reconstructing the
initial conditions with machine learning.\n\nSpeakers: Xinyi Chen\n\nInfl
ation remains one of the enigmas in fundamental physics. While it\nis diff
icult to distinguish different inflation models\, information\ncontained i
n primordial non-Gaussianity (PNG) offers a route to break\nthe degeneracy
. In galaxy surveys\, the local type PNG is usually\nprobed by measuring t
he scale-dependent bias in the galaxy power\nspectrum on large scales\, wh
ere cosmic variance and systematics are\nalso large. Other types of PNG ne
ed bispectrum\, which is\ncomputationally challenging and is contaminated
by gravity. I will\nintroduce a new approach to measuring PNG by using the
reconstructed\ndensity field\, a density field reversed to the initial co
nditions from\nlate time. With the reconstructed density field\, we can fi
t a new\ntemplate at the field level\, or compute a near optimal bispectru
m\nestimator\, to constrain PNG. By reconstructing the initial conditions\
,\nwe remove the nonlinearity induced by gravity\, which is a source of\nc
onfusion when measuring PNG. Near optimal bispectrum estimator\nmitigates
computational challenges. This new approach shows strong\nconstraining pow
er\, offers an alternative way to the existing method\nwith different syst
ematics\, and also follows organically the procedure\nof baryon acoustic o
scillation (BAO) analysis in large galaxy surveys.\nI will present a recon
struction method using convolutional neural\nnetworks that significantly i
mproves the performance of traditional\nreconstruction algorithms in the m
atter density field\, which is\ncrucial for more effectively probing PNG.
This pipeline can enable new\nobservational constraints on PNG from the on
going Dark Energy\nSpectroscopic Instrument (DESI) and Euclid surveys\, as
well as from\nupcoming surveys\, such as that of the Nancy Grace Roman Sp
ace\nTelescope.
DTSTART:20231120T173000Z
DTEND:20231120T190000Z
LAST-MODIFIED:20231117T163147Z
LOCATION:IAS\, West Seminar Room
SUMMARY:Institute for Advanced Study/Princeton University Early Universe/Co
smology Lunch Discussion
URL:https://www.ias.edu/sns/events/institute-advanced-studyprinceton-univer
sity-early-universecosmology-lunch-discussion-67
END:VEVENT
BEGIN:VEVENT
UID:34333334-6561-4237-b864-353238343630
DTSTAMP:20231205T044450Z
CREATED:20230810T194512Z
DESCRIPTION:Topic: On the Existence of Symplectic Barriers\n\nSpeakers: Paz
it Haim-Kislev\n\nResults concerning rigidity of Lagrangian submanifolds l
ie at the\nheart of symplectic topology\, and have been intensively studie
d since\nthe 1990s. An example for this phenomenon is the concept of Lagra
ngian\nBarriers\, a form of symplectic rigidity introduced by Biran in 200
1\,\nwhich involves obligatory intersections of symplectic embeddings with
\nLagrangian submanifolds not derived from mere topology. In this joint\nw
ork with Richard Hind and Yaron Ostrover\, we present what appears to\nbe
the first illustration of Symplectic Barriers (and in particular\nnot Lagr
angian). The key point being that Lagrangian submanifolds are\nnot the sol
e barriers\, and there exist situations where a symplectic\nsubmanifold do
es not exhibit flexibility. In our work\, we also tackle\na question by Sa
ckel–Song–Varolgunes–Zhu and provide bounds on\nthe capacity of the ball a
fter removing a codimension 2 hyperplane\nwith a prescribed Kähler angle.
DTSTART:20231120T173000Z
DTEND:20231120T184500Z
LAST-MODIFIED:20231120T191912Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Symplectic Geometry Seminar
URL:https://www.ias.edu/math/events/symplectic-geometry-seminar-4
END:VEVENT
BEGIN:VEVENT
UID:65326265-3039-4236-b862-616166623766
DTSTAMP:20231205T044450Z
CREATED:20230810T125702Z
DESCRIPTION:Topic: Mass Generation By The Higgs Mechanism At All Couplings
\n\nSpeakers: Sourav Chatterjee\n\nThe Higgs mechanism is a part of the St
andard Model of quantum\nmechanics that allows certain kinds of particles
to have nonzero mass.\nIn spite of its great importance\, there is no rigo
rous proof that the\nHiggs mechanism can indeed generate mass in situation
s that are\nrelevant for the Standard Model. In technical terms\, this cor
responds\nto the “coupling parameter” of the model being small\, and the\n
'gauge group” being non-Abelian (the most important cases are SU(2)\nor SU
(3)). I will present the first rigorous proof in this direction\,\nshowing
that SU(2) lattice Yang-Mills theory coupled to a Higgs field\ntransformi
ng in the fundamental representation of SU(2) has a mass gap\nat any value
of the coupling parameter\, provided that the interaction\nof the Higgs f
ield with the gauge field is strong enough. No\nbackground is needed.
DTSTART:20231120T190000Z
DTEND:20231120T200000Z
LAST-MODIFIED:20231120T192035Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Members' Colloquium
URL:https://www.ias.edu/math/events/members-colloquium-56
END:VEVENT
BEGIN:VEVENT
UID:36333138-3137-4463-a235-393334313930
DTSTAMP:20231205T044450Z
CREATED:20230811T153801Z
DESCRIPTION:Topic: Algebraic K-theory of Rings of Continuous Functions\n\nS
peakers: Ko Aoki\n\nRecent interactions between condensed mathematics and
K-theory have\nled us to revisit the topic of (nonconnective) algebraic K-
theory of\ntopological algebras. In this talk\, among recent developments\
, I will\nfocus on the ring of continuous functions on a compact Hausdorff
space\nvalued in a local field (or a local division ring). This work reso
lves\na previously unconfirmed claim about negative K-theory made by\nRose
nberg in 1990. The method employed is inspired by the resolution\nof Weibe
l's conjecture. The main result provides new counterexamples\nin K-theory
by importing pathology from general topology.
DTSTART:20231120T213000Z
DTEND:20231120T223000Z
LAST-MODIFIED:20231201T141246Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Joint IAS/Princeton Arithmetic Geometry Seminar
URL:https://www.ias.edu/math/events/joint-iasprinceton-arithmetic-geometry-
seminar-7
END:VEVENT
BEGIN:VEVENT
UID:31323764-6139-4064-b465-373137636664
DTSTAMP:20231205T044450Z
CREATED:20230809T190703Z
DESCRIPTION:Topic: Sparsifying Sums of Functions\n\nSpeakers: Yang Liu\n\nC
onsider a function on $R^n$ that can be written as a sum of functions\n$f
= f_1$ + $f_2$ + ... + $f_m$\, for $m >> n$.\n\nThe question of approximat
ing f by a reweighted sum using only a small\nnumber of summands has many
applications in CS theory\, mathematical\nanalysis\, data science\, and nu
merical linear algebra.\n\nWe'll see that sparsification is possible in su
bstantial generality.\nFor instance\, if the functions ${f_i}$ are arbitra
ry norms\, symmetric\nsubmodular functions\, or come from a general class
of linear models\,\nthen one can sparsify down to a number of terms that i
s nearly linear\nin the dimension. As an application\, we obtain algorithm
s with\nnear-optimal running time a variety of linear regression problems\
,\nincluding $l_p$ regression for $1 < p < 2$.\n\nThe most common way of b
uilding sparsifiers is by random sampling the\nfunctions $f_i$ to produce
a sparse reweighting. Attempting to analyze\nsuch a sampling algorithm nat
urally leads to the study of chaining\nmethods\, entropy numbers\, etc. In
the first part of the talk\, we will\nwalk through such a proof for the s
pecial case of _spectral\nsparsification_\, where each $f_i$ is the square
of a linear function\,\ni.e.\, $f_i(x):= ^2$ for some $a_i$ in $
R^n$. Then\, time\npermitting\, we will discuss extensions beyond this cas
e.\n\nBased on joint work with Arun Jambulapati\, James Lee\, and Aaron\nS
idford.
DTSTART:20231121T153000Z
DTEND:20231121T173000Z
LAST-MODIFIED:20231121T141106Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Computer Science/Discrete Mathematics Seminar II
URL:https://www.ias.edu/math/events/computer-sciencediscrete-mathematics-se
minar-ii-546
END:VEVENT
BEGIN:VEVENT
UID:37376337-6266-4333-b232-643237393862
DTSTAMP:20231205T044450Z
CREATED:20230712T191653Z
DESCRIPTION:The Bahcall Lunch follow the astrophysics colloquium lecture.\n
Registration is required by 6pm the previous Thursday so a meal can be\npr
ovided. Email Amanda at cenker@ias.edu with questions.
DTSTART:20231121T173000Z
DTEND:20231121T183000Z
LAST-MODIFIED:20230901T171334Z
LOCATION:Simons Hall Dilworth Room
SUMMARY:Institute for Advanced Study / Princeton University Bahcall Lunch
URL:https://www.ias.edu/sns/events/institute-advanced-study-princeton-unive
rsity-bahcall-lunch-54
END:VEVENT
BEGIN:VEVENT
UID:64613832-6165-4030-a335-336362313534
DTSTAMP:20231205T044450Z
CREATED:20231117T165215Z
DESCRIPTION:Topic: Modeling Cosmic Rays using a 2 moment approach within th
e TIGRESS framework\n\nSpeakers: Lucia Armillotta
DTSTART:20231121T190000Z
DTEND:20231121T200000Z
LAST-MODIFIED:20231117T165324Z
LOCATION:Peyton Hall\, Grand Central
SUMMARY:Princeton University Computational Astrophysics Club
URL:https://www.ias.edu/sns/events/princeton-university-computational-astro
physics-club-21
END:VEVENT
BEGIN:VEVENT
UID:63316233-6333-4064-b430-356566313665
DTSTAMP:20231205T044450Z
CREATED:20231115T163606Z
DESCRIPTION:Topic: C0 Stability of Topological Entropy for 3-Dimensional Re
eb Flows\n\nSpeakers: Matthias Meiwes\n\nThe C0 distance on the space of c
ontact forms on a contact manifold\nhas been studied recently by different
authors. It can be thought of\nas an analogue for Reeb flows of the Hofer
metric on the space of\nHamiltonian diffeomorphisms. In this talk\, I wil
l explain some recent\nprogress on the stability properties of the topolog
ical entropy with\nrespect to this distance obtained in collaboration with
M. Alves\, L.\nDahinden\, and A. Pirnapasov. Our main result states that
the\ntopological entropy for closed contact 3-manifolds is lower\nsemi-con
tinuous in the C0 distance for $C^{\infty}$-generic contact\nfroms. Applyi
ng our methods to geodesic flows of surfaces\, we obtain\nthat the points
of lower-semicontinuity of the topological entropy\ninclude non-degenerate
metrics. In particular\, given a geodesic flow\nof such a metric with pos
itive topological entropy\, the topological\nentropy does not vanish for s
ufficiently C0-small perturbations of the\nmetric.
DTSTART:20231124T141500Z
DTEND:20231124T154500Z
LAST-MODIFIED:20231129T133302Z
LOCATION:Remote Access
SUMMARY:Joint IAS/Princeton/Montreal/Paris/Tel-Aviv Symplectic Geometry Zoo
minar
URL:https://www.ias.edu/math/events/joint-iasprincetonmontrealparistel-aviv
-symplectic-geometry-zoominar-135
END:VEVENT
BEGIN:VEVENT
UID:35346164-6531-4564-b564-393731356564
DTSTAMP:20231205T044450Z
CREATED:20230908T143533Z
DESCRIPTION:Topic: Modeling Neutrino-Induced Scale-Dependent Galaxy Cluster
ing for Photometric Galaxy Surveys\n\nSpeakers: Paul Rogozenski\n\nEach we
ek\, we hold a relatively informal seminar/discussion series\nwith an emph
asis on extra-galactic and large-scale structure\nastrophysics.\n\nDuring
Galread a leader/visitor presents a recent paper to the\ndiscussion group.
The PDF of the paper is projected onto a large\nscreen\, and a guest expl
ains the paper\, section by section\, in greater\ndetail than may be expla
ined within the text of the article. To aid\nwith discussion\, only the ar
ticle PDF is presented -- no\npowerpoint-style slides. Galread discussions
are very friendly and\ninteractive.
DTSTART:20231127T160000Z
DTEND:20231127T170000Z
LAST-MODIFIED:20231127T144832Z
LOCATION:Zoom and Peyton Hall\, Grand Central
SUMMARY:Princeton University Galread [Galactic/Extragalactic Reading Group]
URL:https://www.ias.edu/sns/events/princeton-university-galread-galacticext
ragalactic-reading-group-83
END:VEVENT
BEGIN:VEVENT
UID:62393538-3736-4830-b931-323832303162
DTSTAMP:20231205T044450Z
CREATED:20230809T190121Z
DESCRIPTION:Topic: Recent Progress on Derandomizing Space-Bounded Computati
on\n\nSpeakers: William Hoza\n\nIs randomness ever necessary for space-eff
icient computation? It is\ncommonly conjectured that L = BPL\, meaning tha
t halting decision\nalgorithms can always be derandomized without increasi
ng their space\ncomplexity by more than a constant factor. In the past sev
eral years\,\nthere has been some exciting progress toward proving this co
njecture.\nThanks to recent work\, we have new pseudorandom generators (PR
Gs)\, new\nblack-box derandomization algorithms (generalizations of PRGs)\
, and\nnew non-black-box derandomization algorithms. In this talk\, we wil
l\nsurvey these recent developments\, with an emphasis on Laplacian\nmetho
ds\, error reduction procedures\, and weighted pseudorandom\ngenerators.
DTSTART:20231127T161500Z
DTEND:20231127T171500Z
LAST-MODIFIED:20231127T122933Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Computer Science/Discrete Mathematics Seminar I
URL:https://www.ias.edu/math/events/computer-sciencediscrete-mathematics-se
minar-i-553
END:VEVENT
BEGIN:VEVENT
UID:35346462-3461-4866-a662-333231623935
DTSTAMP:20231205T044450Z
CREATED:20230908T164606Z
DESCRIPTION:Topic: General Discussion
DTSTART:20231127T170000Z
DTEND:20231127T180000Z
LAST-MODIFIED:20231127T144907Z
LOCATION:Zoom and Peyton Dome Rm\, Princeton University
SUMMARY:Princeton University Extrasolar Planet Discussion Group
URL:https://www.ias.edu/sns/events/princeton-university-extrasolar-planet-d
iscussion-group-96
END:VEVENT
BEGIN:VEVENT
UID:35313265-6638-4632-b737-363231316430
DTSTAMP:20231205T044450Z
CREATED:20230922T140500Z
DESCRIPTION:Topic: Novel non-perturbative methods for constraining local pr
imordial non-Gaussianity\n\nSpeakers: Utkarsh Giri\n\nSearching for signat
ures of non-Gaussianity in primordial fluctuations\nis one of the foremost
quests in modern cosmology. In my talk\, I will\npresent a novel\, non-pe
rturbative formalism to constrain the local\ntype primordial non-Gaussiani
ty (PNG) parameter f_NL\, tapping into\ninformation from deeply non-linear
scales. Our formalism defines an\nauxiliary field\, \pi \, which is an es
timate of local small-scale power\nspectrum of a late-time cosmological de
nsity field. The local PNG\nsignature appears as a unique 1/k2 term in the
bias of \pi field with\nrespect to the density field. The auto-spectrum a
nd cross-spectrum of\nthe field with the large-scale density combines info
rmation about\nlocal PNG contained in the squeezed bispectrum and collapse
d\ntrispectrum in a computationally amenable and consistent way\, while\na
voiding the need to model complicated covariances of these higher\nN-point
functions. We subsequently generalize our work and train a\nneural networ
k to estimate the local amplitude of fluctuations. The\n\pi field returned
by the trained neural network is sensitive to PNG\nsignature contained in
the soft-limits of higher N-point functions. We\napply our method to simu
lations and show that constraints on f_NL are\nseveral times better than t
hose obtained from a standard matter+halo\nbased analysis. Our method is r
obust to systematics as symmetry\narguments imply that the signature canno
t be faked by any other\nphysics.
DTSTART:20231127T173000Z
DTEND:20231127T190000Z
LAST-MODIFIED:20231127T145016Z
LOCATION:Peyton Hall\, Grand Central
SUMMARY:Institute for Advanced Study/Princeton University Early Universe/Co
smology Lunch Discussion
URL:https://www.ias.edu/sns/events/institute-advanced-studyprinceton-univer
sity-early-universecosmology-lunch-discussion-65
END:VEVENT
BEGIN:VEVENT
UID:33376333-3161-4130-b538-346333336136
DTSTAMP:20231205T044450Z
CREATED:20230810T194714Z
DESCRIPTION:Topic: On the Rigidity of Integrable Twist Maps of the 2d-Dimen
sional Annulus\n\nSpeakers: Alfonso Sorrentino\n\nIn the study of Hamilton
ian systems\, integrable dynamics play a\ncrucial role. Integrability\, ho
wever\, appears to be a delicate\nproperty that is not expected to persist
under generic small\nperturbations. Understanding the essence of this fra
gility presents a\ncompelling task\, which turns out to be relevant across
different\ncontexts. In this talk\, I shall present some results aimed at
shedding\nmore light on this issue\, within the framework of symplectic t
wist\nmaps of the 2-dimensional annulus. Specifically\, I shall investigat
e\nthe persistence and the properties of invariant Lagrangian tori that\na
re foliated by periodic points and discuss how their fragility\nunderpins
the rigidity of completely integrable twist maps. This is\nbased on a join
t works with Marie-Claude Arnaud\, Jessica Massetti\, and\nCorentin Fierob
e.
DTSTART:20231127T173000Z
DTEND:20231127T184500Z
LAST-MODIFIED:20231127T190805Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Symplectic Geometry Seminar
URL:https://www.ias.edu/math/events/symplectic-geometry-seminar-5
END:VEVENT
BEGIN:VEVENT
UID:66643262-3230-4638-b135-383235343731
DTSTAMP:20231205T044450Z
CREATED:20230810T125726Z
DESCRIPTION:Topic: TBD
DTSTART:20231127T190000Z
DTEND:20231127T200000Z
LAST-MODIFIED:20231106T182153Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Members' Colloquium
URL:https://www.ias.edu/math/events/members-colloquium-58
END:VEVENT
BEGIN:VEVENT
UID:36303238-6136-4833-b130-643261346464
DTSTAMP:20231205T044450Z
CREATED:20230908T184247Z
DESCRIPTION:Topic: Duality for 𝑝-adic Proétale Cohomology of Stein Spaces\n
\nSpeakers: Sally Gilles\n\nI will discuss duality theorems for p-adic pro
étale cohomology of\nrigid analytic Stein spaces\, in both arithmetic and
geometric cases.\nThis is based on a joint work with Pierre Colmez and Wie
slawa Niziol.
DTSTART:20231127T213000Z
DTEND:20231127T223000Z
LAST-MODIFIED:20231201T141311Z
LOCATION:Princeton University\, Fine Hall 314
SUMMARY:Joint IAS/Princeton Arithmetic Geometry Seminar
URL:https://www.ias.edu/math/events/joint-iasprinceton-arithmetic-geometry-
seminar-10
END:VEVENT
BEGIN:VEVENT
UID:66326333-3364-4434-a533-323639386631
DTSTAMP:20231205T044450Z
CREATED:20230809T190727Z
DESCRIPTION:Topic: Weighted Pseudorandom Generators via Inverse Analysis of
Random Walks and Shortcutting\n\nSpeakers: William Hoza\n\nA weighted pse
udorandom generator (WPRG) is a generalization of a\npseudorandom generato
r (PRG) in which\, roughly speaking\, probabilities\nare replaced with wei
ghts that are permitted to be positive or\nnegative. In this talk\, we pre
sent new explicit constructions of WPRGs\nthat fool certain types of space
-bounded computation.\n\nWe focus on two classes of standard-order read-on
ce branching\nprograms\, namely width-3 programs and constant-width regula
r programs.\nIn both cases\, we are able to construct an explicit WPRG wit
h seed\nlength $\widetilde{O}\left(\log n \cdot \sqrt{\log(1/\varepsilon)}
+\n\log(1/\varepsilon)\right)$\, where $n$ is the length of the program\n
and $\varepsilon$ is the error of the WPRG. For comparison\, for both\nof
these models\, the best explicit unweighted PRGs known have seed\nlength $
\widetilde{O}(\log n \cdot \log(1/\varepsilon))$ (Meka\,\nReingold\, and T
al STOC 2019\; Braverman\, Rao\, Raz\, and Yehudayoff\nSICOMP 2014). Our W
PRG seed length is superior when $\varepsilon$ is\nsmall.\n\nOur results a
re based on a new\, general framework for error reduction.\nOur framework
builds on the remarkable recent work by Ahmadinejad\,\nKelner\, Murtagh\,
Peebles\, Sidford\, and Vadhan (FOCS 2020) that gave a\nnear-logarithmic s
pace algorithm for estimating random walk\nprobabilities in Eulerian digra
phs with high precision. Our framework\ncenters around the 'inverse analys
is' of random walks and a key\ncombinatorial structure termed 'shortcut gr
aphs.'\n\nBased on joint work with Lijie Chen\, Xin Lyu\, Avishay Tal\, an
d Hongxun\nWu (https://eccc.weizmann.ac.il/report/2023/114/).
DTSTART:20231128T153000Z
DTEND:20231128T173000Z
LAST-MODIFIED:20231128T133408Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Computer Science/Discrete Mathematics Seminar II
URL:https://www.ias.edu/math/events/computer-sciencediscrete-mathematics-se
minar-ii-544
END:VEVENT
BEGIN:VEVENT
UID:30616362-3436-4666-b434-353533346263
DTSTAMP:20231205T044450Z
CREATED:20230712T191721Z
DESCRIPTION:The Bahcall Lunch follow the astrophysics colloquium lecture.\n
Registration is required by 6pm the previous Thursday so a meal can be\npr
ovided. Email Amanda at cenker@ias.edu with questions.
DTSTART:20231128T173000Z
DTEND:20231128T183000Z
LAST-MODIFIED:20230901T171358Z
LOCATION:Simons Hall Dilworth Room
SUMMARY:Institute for Advanced Study / Princeton University Bahcall Lunch
URL:https://www.ias.edu/sns/events/institute-advanced-study-princeton-unive
rsity-bahcall-lunch-55
END:VEVENT
BEGIN:VEVENT
UID:63666334-6130-4537-a337-636465356137
DTSTAMP:20231205T044450Z
CREATED:20231127T150707Z
DESCRIPTION:Topic: Radiative transfer in PIC codes using the Monte Carlo me
thod\n\nSpeakers: Hayk Hakobyan
DTSTART:20231128T190000Z
DTEND:20231128T200000Z
LAST-MODIFIED:20231127T150916Z
LOCATION:Peyton Hall\, Grand Central
SUMMARY:Princeton University Computational Astrophysics Club
URL:https://www.ias.edu/sns/events/princeton-university-computational-astro
physics-club-22
END:VEVENT
BEGIN:VEVENT
UID:61306162-3934-4636-b538-323034383466
DTSTAMP:20231205T044450Z
CREATED:20230926T155009Z
DESCRIPTION:Topic: On Cohomology of BG\n\nSpeakers: Shizhang Li\n\nCohomolo
gy of classifying space/stack of a group G is the home which\nresides all
characteristic classes of G-bundles/torsors. In this talk\,\nwe will try t
o explain some results on Hodge/de Rham cohomology of BG\nwhere G is a $p$
-power order commutative group scheme over a perfect\nfield of characteris
tic $p$\, in terms of its Dieudonné module.\n\nThis is a joint work in pro
gress with Dmitry Kubrak and Shubhodip\nMondal.
DTSTART:20231129T190000Z
DTEND:20231129T200000Z
LAST-MODIFIED:20231129T133457Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Special Year Seminar
URL:https://www.ias.edu/math/events/special-year-seminar-5
END:VEVENT
BEGIN:VEVENT
UID:38633233-3638-4331-a361-386235623932
DTSTAMP:20231205T044450Z
CREATED:20230810T190725Z
DESCRIPTION:Topic: Around Math in Two Years: A Story of One Project\n\nSpea
kers: Rachel Greenfeld
DTSTART:20231129T230000Z
DTEND:20231130T010000Z
LAST-MODIFIED:20231121T175253Z
LOCATION:Birch Garden\, Simons Hall
SUMMARY:Mathematical Conversations
URL:https://www.ias.edu/math/events/mathematical-conversations-266
END:VEVENT
BEGIN:VEVENT
UID:38666233-3162-4366-a332-383366336530
DTSTAMP:20231205T044450Z
CREATED:20231002T173728Z
DESCRIPTION:Topic: The Locally Analytic Version of the Correspondence\n\nSp
eakers: Mingjia Zhang
DTSTART:20231130T150000Z
DTEND:20231130T170000Z
LAST-MODIFIED:20231013T134658Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Special Year Learning Seminar
URL:https://www.ias.edu/math/events/special-year-learning-seminar-19
END:VEVENT
BEGIN:VEVENT
UID:38366462-3231-4665-b861-663963356236
DTSTAMP:20231205T044450Z
CREATED:20230712T202100Z
DESCRIPTION:Topic: TBA\n\nSpeakers: Gabriela Sato-Polito\n\nAffiliation: Th
e Institute for Advanced Study
DTSTART:20231130T160000Z
DTEND:20231130T170000Z
LAST-MODIFIED:20230901T124710Z
LOCATION:Bloomberg Lecture Hall
SUMMARY:Institute for Advanced Study Astrophysics Seminar
URL:https://www.ias.edu/sns/events/institute-advanced-study-astrophysics-se
minar-82
END:VEVENT
BEGIN:VEVENT
UID:38623733-3433-4236-b933-646232633838
DTSTAMP:20231205T044450Z
CREATED:20231127T150133Z
DESCRIPTION:Topic: The study of Interstellar Medium diagnostics in local ga
laxies to Interpret the Reionization-Era\n\nSpeakers: Matilde Mingozzi\n\n
Rest-frame UV spectra play a key role in the understanding of massive\nste
llar populations\, chemical evolution\, feedback processes\, and\nreioniza
tion. Indeed\, in the current JWST era\, the UV spectroscopic\nfrontier ha
s been pushed to higher redshifts than ever before\, to\nfinally reveal th
e first galaxies in the distant Universe. In this\ncontext\, the HST COS L
egacy Archive Spectroscopic SurveY (CLASSY)\nprovides the first high-quali
ty\, high-resolution and broad-wavelength\nrange catalogue of 45 local sta
r-forming galaxies (SFGs) in the\nrest-frame UV (1150 ?2000 Å) to investig
ate their stellar and gas\nproperties. The sample is representative of SFG
s across all redshifts\,\nincluding extremely metal-poor objects similar t
o reionization-era\nsystems. Hence\, CLASSY provides the ideal UV atlas wi
th which we can\ntailor a complete UV diagnostic toolkit to explore the in
terstellar\nmedium (ISM) properties (i.e.\, density\, temperature\, gas-ph
ase\nmetallicity\, ionization parameter). In this talk I will present such
a\ntoolkit\, obtained from the analysis of the main emission lines of\nCL
ASSY spectra and the comparison with well-known optical diagnostics.\nWe a
lso compared our measurements with state-of-the-art\nphotoionization model
s\, to provide the best diagnostics plots to\nidentify the main source of
ionization. Overall\, CLASSY and our UV\ntoolkit can be crucial to interpr
et the earliest galaxies revealed\nwith JWST.
DTSTART:20231130T190000Z
DTEND:20231130T200000Z
LAST-MODIFIED:20231127T150308Z
LOCATION:Serin Hall Rm W330\, Rutgers and Zoom
SUMMARY:Rutgers University Astrophysics Seminar
URL:https://www.ias.edu/sns/events/rutgers-university-astrophysics-seminar-
32
END:VEVENT
BEGIN:VEVENT
UID:63386562-6332-4230-b931-356631376533
DTSTAMP:20231205T044450Z
CREATED:20230908T131347Z
DESCRIPTION:Topic: Boundary Cohomology of Well-Positioned Subschemes of Int
egral Models of Shimura varieties\n\nSpeakers: Kai-Wen Lan\n\nI will first
review what we know about the toroidal and minimal\ncompactifications of
Shimura varieties and their integral models\, and\nthe well-positioned sub
schemes of these integral models. Then I will\nexplain some p-adic analog
ues of Harris and Zucker's work on the\nboundary cohomology of Shimura var
ieties and of well-positioned\nsubschemes of their integral models (when d
efined). (Based on thesis\nworks of Peihang Wu and Shengkai Mao\, and on
joint work with David\nSherman on p-adic log Riemann-Hilbert functors in t
he ideally log\nsmooth case.)
DTSTART:20231130T213000Z
DTEND:20231130T223000Z
LAST-MODIFIED:20231127T144354Z
LOCATION:Institute for Advanced Study\, Simonyi Hall\, Room 101
SUMMARY:Joint PU/IAS Number Theory
URL:https://www.ias.edu/math/events/joint-puias-number-theory-4
END:VEVENT
BEGIN:VEVENT
UID:62636665-3731-4632-a135-393332396637
DTSTAMP:20231205T044450Z
CREATED:20231127T150406Z
DESCRIPTION:Topic: Tearing-mediated reconnection in magnetohydrodynamic poo
rly ionized plasmas. I. Onset and linear evolution\n\nSpeakers: Elizabeth
Tolman\n\nIn high-Lundquist-number plasmas\, reconnection proceeds via ons
et of\ntearing\, followed by a non-linear phase when plasmoids continuousl
y\nform\, merge\, and are ejected from the current sheet (CS). This proces
s\nis understood in fully ionized\, magnetohydrodynamic plasmas. However\,
\nmany plasma environments\, such as star-forming molecular clouds and\nth
e solar chromosphere\, are poorly ionized. We use theory and\ncomputation
to study tearing-initiated reconnection in such poorly\nionized systems. I
n this talk\, we focus on the onset and linear\nevolution of this process.
In poorly ionized plasmas\, magnetic field\nnulls on scales below v_{An0}
/\nu_{ni0}\, with v_{An0} the neutral\nAlfven speed and \ni_{ni0} the neut
ral-ion collision frequency\, will\nself-sharpen via ambipolar diffusion i
nto CSs which tear. This\nnonlinear sharpening occurs at an increasing rat
e\, delaying the onset\nof reconnection by decreasing the CS width at whic
h the tearing growth\nrate becomes larger than the CS formation rate. Once
the CS becomes\nthin enough\, however\, ions decouple from neutrals and t
hinning of the\nCS slows\, allowing tearing onset. We find that the wavele
ngth of the\nmode that first disrupts the forming sheet decreases as ioniz
ation\nfraction decreases and that onset occurs in a time of order\n\nu_{n
i0}^{-1}.
DTSTART:20231201T173000Z
DTEND:20231201T183000Z
LAST-MODIFIED:20231127T150608Z
LOCATION:Dome Room\, Peyton Hall or Zoom
SUMMARY:Princeton University Astroplasmas Seminar
URL:https://www.ias.edu/sns/events/princeton-university-astroplasmas-semina
r-59
END:VEVENT
BEGIN:VEVENT
UID:34313930-3131-4761-a438-623061396162
DTSTAMP:20231205T044450Z
CREATED:20231120T143933Z
DESCRIPTION:Topic: What is an Incompressible Surface in a 3-manifold?\n\nSp
eakers: Anastasiia Tsvietkova\n\nFor a low-dimensional manifold\, one ofte
n tries to understand its\nintrinsic topology and geometry through its sub
manifolds\, in\nparticular of co-dimension 1. To be interesting and to giv
e some\ninformation\, such a submanifold should interact with the 3-manifo
ld in\na non-trivial way. In particular\, it was noticed before that prese
nce\nof embedded incompressible surfaces in a 3-manifold can give\ninforma
tion about that manifold. However to construct\, classify or\ncount such s
urfaces is a non-trivial task. We will start by explaining\nwhat is behind
the definitions\, and\, if the time allows\, will\neventually discuss a u
niversal upper bound for the number of\nnon-isotopic genus g surfaces embe
dded in a hyperbolic 3-manifold\,\npolynomial in hyperbolic volume of the
3-manifold. This touches on\nongoing joint work with Marc Lackenby\, anoth
er recent joint work with\nJessica Purcell\, and earlier joint work with J
oel Hass and Abigail\nThompson.
DTSTART:20231201T180000Z
DTEND:20231201T190000Z
LAST-MODIFIED:20231120T144205Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:What is...?
URL:https://www.ias.edu/math/events/what-17
END:VEVENT
BEGIN:VEVENT
UID:35613738-3538-4636-a431-643962333433
DTSTAMP:20231205T044450Z
CREATED:20230809T195028Z
DESCRIPTION:Topic: TBD\n\nSpeakers: Dmitry Kubrak
DTSTART:20231201T193000Z
DTEND:20231201T213000Z
LAST-MODIFIED:20231004T130331Z
LOCATION:Princeton University\, Fine Hall 314
SUMMARY:Condensed Learning Seminar
URL:https://www.ias.edu/math/events/condensed-learning-seminar-4
END:VEVENT
BEGIN:VEVENT
UID:62636130-3161-4530-b166-616539663832
DTSTAMP:20231205T044450Z
CREATED:20230925T122503Z
DESCRIPTION:Topic: Higher Dimensional Fractal Uncertainty\n\nSpeakers: Alex
Cohen\n\nA fractal uncertainty principle (FUP) roughly says that a \nfunc
tion and its Fourier transform cannot both be concentrated on a \nfractal
set. These were introduced to harmonic analysis in order to \nprove new re
sults in quantum chaos: if eigenfunctions on hyperbolic \nmanifolds concen
trated in unexpected ways\, that would contradict the \nFUP. Bourgain and
Dyatlov proved FUP over the real numbers\, and in\nthis \ntalk I will disc
uss an extension to higher dimensions. The bulk of\nthe \nwork is construc
ting certain plurisubharmonic functions on C^n.
DTSTART:20231201T193000Z
DTEND:20231201T203000Z
LAST-MODIFIED:20231106T191219Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Joint IAS/PU Analysis Seminar
URL:https://www.ias.edu/math/events/joint-iaspu-analysis-seminar-2
END:VEVENT
BEGIN:VEVENT
UID:66656535-3630-4064-b461-616161383666
DTSTAMP:20231205T044450Z
CREATED:20230928T143530Z
DESCRIPTION:Topic: Renormalization Group and Homogenization\n\nSpeakers: Sc
ott Armstrong\n\nI will describe some new 'coarse-graining' methods in qua
ntitative\nhomogenization and how they can be used to give rigorous versio
ns of\ncertain heuristic 'renormalization group' arguments in physics\, wi
th a\nfocus on several examples.
DTSTART:20231201T210000Z
DTEND:20231201T220000Z
LAST-MODIFIED:20231116T185005Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Joint IAS/PU Analysis Seminar
URL:https://www.ias.edu/math/events/joint-iaspu-analysis-seminar-4
END:VEVENT
BEGIN:VEVENT
UID:61373535-6631-4233-a534-316662383536
DTSTAMP:20231205T044450Z
CREATED:20230908T143623Z
DESCRIPTION:Topic: Works on ICL (with Laura Sales\, in TNG50) and a bit of
dwarf galaxies using Galacticus\, with Andrew Benson\n\nSpeakers: Niusha A
hvazi\n\nEach week\, we hold a relatively informal seminar/discussion seri
es\nwith an emphasis on extra-galactic and large-scale structure\nastrophy
sics.\n\nDuring Galread a leader/visitor presents a recent paper to the\nd
iscussion group. The PDF of the paper is projected onto a large\nscreen\,
and a guest explains the paper\, section by section\, in greater\ndetail t
han may be explained within the text of the article. To aid\nwith discussi
on\, only the article PDF is presented -- no\npowerpoint-style slides. Gal
read discussions are very friendly and\ninteractive.
DTSTART:20231204T160000Z
DTEND:20231204T170000Z
LAST-MODIFIED:20231204T140005Z
LOCATION:Zoom and Peyton Hall\, Grand Central
SUMMARY:Princeton University Galread [Galactic/Extragalactic Reading Group]
URL:https://www.ias.edu/sns/events/princeton-university-galread-galacticext
ragalactic-reading-group-84
END:VEVENT
BEGIN:VEVENT
UID:37333938-3163-4661-a430-633465386333
DTSTAMP:20231205T044450Z
CREATED:20230809T190148Z
DESCRIPTION:Topic: Toward Better Depth Lower Bounds: A KRW-like theorem for
Strong Composition\n\nSpeakers: Or Meir\n\nOne of the major open problems
in complexity theory is proving\nsuper-logarithmic lower bounds on the de
pth of circuits. Karchmer\,\nRaz\, and Wigderson (Computational Complexity
5(3/4)\, 1995) suggested\napproaching this problem by proving that depth
complexity of a\ncomposition of two functions is roughly the sum of their
individual\ndepth complexities. They showed that the validity of this conj
ecture\nwould imply the desired lower bounds.\n\nThe intuition that underl
ies the KRW conjecture is that composition\nshould behave like a 'direct-s
um problem'\, in a certain sense\, and\ntherefore the depth complexity of
the composition should be the sum of\nthe individual depth complexities. N
evertheless\, there are two\nobstacles toward turning this intuition into
a proof: first\, we do not\nknow how to prove that the composition must be
have like a direct-sum\nproblem\; second\, we do not know how to prove tha
t the complexity of\nthe latter direct-sum problem is indeed the sum of th
e individual\ncomplexities.\n\nIn this talk\, we will describe a new work
that tackles the second\nobstacle. We will consider a notion of 'strong co
mposition' that is\nforced to behave like a direct-sum problem\, and see t
hat a variant of\nthe KRW conjecture holds for this notion. This result de
monstrates\nthat the first obstacle above is the crucial barrier toward re
solving\nthe KRW conjecture. Along the way\, we will discuss some general
\ntechniques that might be of independent interest.
DTSTART:20231204T161500Z
DTEND:20231204T171500Z
LAST-MODIFIED:20231204T152853Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Computer Science/Discrete Mathematics Seminar I
URL:https://www.ias.edu/math/events/computer-sciencediscrete-mathematics-se
minar-i-554
END:VEVENT
BEGIN:VEVENT
UID:30636461-6638-4962-b136-363965383137
DTSTAMP:20231205T044450Z
CREATED:20230908T164659Z
DESCRIPTION:Topic: Novel Insights into Planetesimal Formation through Diffu
sive Instabilities\n\nSpeakers: Konstantin Gerbig \n\nThe assembly of plan
etesimals\, a key step in the formation of planets\,\nremains riddled with
questions. In particular\, there is ambiguity\nregarding the environments
in which dust accumulations at the\nmid-planes of protoplanetary disks be
come unstable to their own\nself-gravity\, and contract to form planetesim
als. Moreover\, how these\nspecific conditions relate to the planetesimal
initial mass function\n(IMF) is uncertain. In this talk\, I investigate th
ese questions.\nDrawing upon the analogy of underwater sand ripples\, I wi
ll first\nintroduce a new linear\, axisymmetric instability that leads to
\nfilament formation in the dusty mid-plane of protoplanetary disks\,\npro
vided diffusivity decreases sufficiently fast with increasing dust\nloadin
g — a premise supported by our numerical simulations of\nprotoplanetary di
sks where dust-gas interactions self-generate\nturbulent diffusion. The se
cond part of my talk will discuss the IMF\nof planetesimals that form when
these filaments fragment under their\nown self-gravity. I will present an
analytic framework that maps the\nturbulent conditions in the filament on
to the IMF as well as numerical\nsimulations of planetesimal formation. Th
is theory provides\ncharacteristic size predictions for initial planetesim
als that are of\norder 100km\, an estimate consistent with Asteroid Belt d
ata.
DTSTART:20231204T170000Z
DTEND:20231204T180000Z
LAST-MODIFIED:20231204T140103Z
LOCATION:Zoom and Peyton Dome Rm\, Princeton University
SUMMARY:Princeton University Extrasolar Planet Discussion Group
URL:https://www.ias.edu/sns/events/princeton-university-extrasolar-planet-d
iscussion-group-98
END:VEVENT
BEGIN:VEVENT
UID:62353034-3465-4831-b563-333565353035
DTSTAMP:20231205T044450Z
CREATED:20230922T140652Z
DESCRIPTION:Topic: Beyond Summary Statistics: Leveraging Generative Models
for Field-Level Weak Lensing Analysis\n\nSpeakers: Biwei Dai\n\nDeep learn
ing (DL) methods have demonstrated great potential for\nextracting rich no
n-linear information from cosmological fields\, a\nchallenge that traditio
nal summary statistics struggle to address.\nMost of these DL methods are
discriminative models\, i.e.\, they\ndirectly learn the posterior constrai
nts of cosmological parameters.\nIn this talk\, I will make the argument t
hat learning the field-level\nlikelihood function using generative modelin
g approaches such as\nNormalizing Flows usually leads to more effective ex
traction of\ncosmological information. This approach also enables goodness
-of-fit\ntests (anomaly detection) to improve the robustness of the analys
is.\nTo scale the modeling to high dimensional data and improve its\ngener
alization capabilities\, we further incorporate physical prior\nknowledge\
, such as symmetries and multiscale structure\, into the\narchitecture of
the normalizing flow models. On mock weak lensing\nmaps\, I will show that
the model leads to significant improvement in\nconstraining power compare
d to power spectrum and alternative DL\nmodels. I will also show that it i
s able to detect domain shifts\nbetween training simulations and test data
\, such as noise\nmiscalibration and baryonic effect\, which\, if left una
ddressed\, could\nintroduce systematic biases in parameter constraints. Fi
nally\, I will\ntalk about our ongoing work on applying this model to the
field-level\ncosmic shear analysis for HSC.
DTSTART:20231204T173000Z
DTEND:20231204T190000Z
LAST-MODIFIED:20231204T140144Z
LOCATION:IAS\, West Seminar Room
SUMMARY:Institute for Advanced Study/Princeton University Early Universe/Co
smology Lunch Discussion
URL:https://www.ias.edu/sns/events/institute-advanced-studyprinceton-univer
sity-early-universecosmology-lunch-discussion-68
END:VEVENT
BEGIN:VEVENT
UID:31383162-6461-4262-a135-363437373032
DTSTAMP:20231205T044450Z
CREATED:20230810T194830Z
DESCRIPTION:Topic: On Some Impact-like Hamiltonian Systems\n\nSpeakers: Ver
ed Rom-Kedar\n\nThe dynamics associated with mechanical Hamiltonian flows
with smooth\npotentials that include sharp fronts may be modeled\, at the
singular\nlimit\, by Hamiltonian impact systems: a class of generalized bi
lliards\nby which the dynamics in the domain’s interior are governed by\ns
mooth potentials and at the domain’s boundaries by elastic\nreflections. R
esults on persisting vs. non-persisting dynamics of such\nsystems will be
discussed. In some cases\, called quasi-integrable\, the\nlimit systems ha
ve fascinating behavior: their energy surfaces are\nfoliated by two dimens
ional level sets. The motion on each of these\nlevel sets is conjugated to
a directed motion on a translation\nsurface. The genus of the iso-energy
level sets varies - it is only\npiecewise constant along the foliation. Th
e metric data of the\ncorresponding translation surfaces and the direction
of motion along\nthem changes smoothly within each of the constant-genus
families.\nErgodic properties and quantum properties of classes of such sy
stems\nare established. Based on collaborations with: M. Pnueli\, K. Fracz
ek\,\nO. Yaniv\, D. Turaev\, L. Becker\, S. Elliott\, B. Firester\, S. Gon
en\nCohen.
DTSTART:20231204T173000Z
DTEND:20231204T184500Z
LAST-MODIFIED:20231204T153024Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Symplectic Geometry Seminar
URL:https://www.ias.edu/math/events/symplectic-geometry-seminar-6
END:VEVENT
BEGIN:VEVENT
UID:65623664-3333-4536-b631-316266636464
DTSTAMP:20231205T044450Z
CREATED:20230810T125750Z
DESCRIPTION:Topic: Einstein\, P-adic Sudoku\, Domino\, and Decidability\n\n
Speakers: Rachel Greenfeld\n\nTranslational tiling is a covering of a spac
e (such as Euclidean\nspace) using translated copies of one building block
\, called a\n'translational tile''\, without any positive measure overlaps
. \n\nCan we determine whether a given set is a translational tile? Does
\nany translational tile admit a periodic tiling? A well known\nargument
shows that these two questions are closely related. In the\ntalk\, we wil
l discuss this relation and present some new developments\,\njoint with Te
rence Tao\, establishing answers to both questions.
DTSTART:20231204T190000Z
DTEND:20231204T200000Z
LAST-MODIFIED:20231204T153141Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Members' Colloquium
URL:https://www.ias.edu/math/events/members-colloquium-57
END:VEVENT
BEGIN:VEVENT
UID:31366233-3932-4565-b662-386436613461
DTSTAMP:20231205T044450Z
CREATED:20231204T140350Z
DESCRIPTION:Topic: Multi-Mission Joint Processing\n\nSpeakers: Peter Melchi
or
DTSTART:20231204T190000Z
DTEND:20231204T200000Z
LAST-MODIFIED:20231204T140451Z
LOCATION:Zoom and Peyton 025 or Broadmead 102
SUMMARY:Princeton University Survey Science Discussion
URL:https://www.ias.edu/sns/events/princeton-university-survey-science-disc
ussion-2
END:VEVENT
BEGIN:VEVENT
UID:36363266-3630-4463-a234-306336626539
DTSTAMP:20231205T044450Z
CREATED:20230811T153825Z
DESCRIPTION:Topic: Mirror Symmetry and the Breuil-Mezard Conjecture\n\nSpea
kers: Tony Feng\n\nThe Breuil-Mezard Conjecture predicts the existence of
hypothetical\n'Breuil-Mezard cycles' that should govern congruences betwee
n mod p\nautomorphic forms on a reductive group G. Most of the progress th
us\nfar has been concentrated on the case G = GL_2\, which has several\nsp
ecial features. I will talk about joint work with Bao Le Hung on a\nnew ap
proach to the Breuil-Mezard Conjecture\, which applies for\narbitrary grou
ps (and in particular\, in arbitrary rank). It is based\non the intuition
that the Breuil-Mezard conjecture is analogous to\nhomological mirror symm
etry.
DTSTART:20231204T213000Z
DTEND:20231204T223000Z
LAST-MODIFIED:20231204T205006Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Joint IAS/Princeton Arithmetic Geometry Seminar
URL:https://www.ias.edu/math/events/joint-iasprinceton-arithmetic-geometry-
seminar-8
END:VEVENT
BEGIN:VEVENT
UID:31373836-3036-4164-b135-353137323237
DTSTAMP:20231205T044450Z
CREATED:20230809T190640Z
DESCRIPTION:Topic: Coboundary and Cosystolic Expansion\n\nSpeakers: Siqi Li
u\n\nCoboundary expansion and cosystolic expansion are generalizations of
\nedge expansion to hypergraphs. In this talk\, we will first explain how
\nthe generalizations work. Next we will motivate the study of such\nhyper
graphs by looking at their applications to property testing.\nFinally\, we
will illustrate the use of the cone method to show\ncoboundary expansion
for the complete complexes. Time permitting\, we\nwill also sketch the loc
al-to-global argument for showing cosystolic\nexpansion.
DTSTART:20231205T153000Z
DTEND:20231205T173000Z
LAST-MODIFIED:20231129T130811Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Computer Science/Discrete Mathematics Seminar II
URL:https://www.ias.edu/math/events/computer-sciencediscrete-mathematics-se
minar-ii-545
END:VEVENT
BEGIN:VEVENT
UID:66666235-3061-4532-b165-653737643362
DTSTAMP:20231205T044450Z
CREATED:20230901T171414Z
DESCRIPTION:The Bahcall Lunch follow the astrophysics colloquium lecture.\n
Registration is required by 6pm the previous Thursday so a meal can be\npr
ovided. Email Amanda at cenker@ias.edu with questions.
DTSTART:20231205T173000Z
DTEND:20231205T183000Z
LAST-MODIFIED:20230901T171429Z
LOCATION:Simons Hall Dilworth Room
SUMMARY:Institute for Advanced Study / Princeton University Bahcall Lunch
URL:https://www.ias.edu/sns/events/institute-advanced-study-princeton-unive
rsity-bahcall-lunch-56
END:VEVENT
BEGIN:VEVENT
UID:30386236-3566-4465-b964-376538616133
DTSTAMP:20231205T044450Z
CREATED:20230926T155345Z
DESCRIPTION:Topic: Mod-p Poincare Duality in p-adic Analytic Geometry\n\nSp
eakers: Bogdan Zavyalov\n\nEtale cohomology of $F_p$-local systems does no
t behave nicely on\ngeneral smooth p-adic rigid-analytic spaces\; e.g.\, t
he\n$F_p$-cohomology of the 1-dimensional closed unit ball is infinite. \n
\nHowever\, it turns out that the situation is much better if one\nconside
rs only proper rigid-analytic spaces. These spaces have finite\n$F_p$ coho
mology groups and these groups satisfy Poincare Duality if X\nis smooth an
d proper.\n\nI will explain how one can prove such results using the conce
pt of\nalmost coherent sheaves that allows to 'localize' such questions in
an\nappropriate sense and reduce to some local computations.
DTSTART:20231206T190000Z
DTEND:20231206T200000Z
LAST-MODIFIED:20231130T151128Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Special Year Seminar
URL:https://www.ias.edu/math/events/special-year-seminar-6
END:VEVENT
BEGIN:VEVENT
UID:30633765-6662-4834-a338-326430393835
DTSTAMP:20231205T044450Z
CREATED:20230810T190831Z
DESCRIPTION:Topic: Grothendieck's Nightmare and Subsequent Dreams\n\nSpeake
rs: Mikael De La Salle\n\nIn Récoltes et Semailles\, Grothendieck explains
that\, exactly once in\nhis life\, doing math had become painful for him.
It was at the end of\nthe analytic part of his career\, when he was obses
sed by the\napproximation problem. I will explain what this problem is abo
ut\, how\nit has been solved\, and what still remains to be understood.
DTSTART:20231206T230000Z
DTEND:20231207T010000Z
LAST-MODIFIED:20231201T190812Z
LOCATION:Birch Garden\, Simons Hall
SUMMARY:Mathematical Conversations
URL:https://www.ias.edu/math/events/mathematical-conversations-267
END:VEVENT
BEGIN:VEVENT
UID:62346632-3339-4437-a538-393339393435
DTSTAMP:20231205T044450Z
CREATED:20231002T173916Z
DESCRIPTION:Topic: Nonabelian p-adic Hodge Theory via the Hodge-Tate Stack
\n\nSpeakers: Emanuel Reinecke
DTSTART:20231207T150000Z
DTEND:20231207T170000Z
LAST-MODIFIED:20231013T134734Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Special Year Learning Seminar
URL:https://www.ias.edu/math/events/special-year-learning-seminar-20
END:VEVENT
BEGIN:VEVENT
UID:30653965-3730-4462-b739-666238643762
DTSTAMP:20231205T044450Z
CREATED:20230712T202128Z
DESCRIPTION:Topic: Exploring the Dynamics of Supercritical Accretion onto t
he Strongly Magnetized Neutron Stars\n\nSpeakers: Lizhong Zhang\n\nAccreti
on-powered X-ray pulsars are neutron stars that accrete matter\nfrom a com
panion star in a binary system\, which exhibit fascinating\ndynamics. The
strong magnetic field of the neutron star guides\nmaterial onto the magnet
ic poles\, which are generally misaligned from\nthe spin axis\, resulting
in pulsating X-rays as the star rotates. At\nhigh accretion rates\, a magn
etically confined accretion flow forms a\ncolumn structure near the magnet
ic poles\, supported against gravity by\nradiation pressure. This column s
tructure is highly dynamical\,\ndisplaying kHz quasi-periodic oscillations
. Simulated accretion\ncolumns reveal the presence of the photon bubble in
stability\, although\nit is not the trigger for the oscillatory behaviors.
Instead\, the\noscillations originate from the inability of the system to
resupply\nheat and locally balance sideways cooling. The column structure
is\nvery sensitive to the shock geometry because it directly determines\n
the cooling efficiency. The simulated time-averaged column structures\ncan
be approximately reproduced by a corrected 1D stationary model\,\naccount
ing for the actual 2D/3D shape of the time-averaged column. The\nscatterin
g opacity can be significantly reduced in a strong magnetic\nfield\, poten
tially altering the column structure and variability.\nHowever\, pair prod
uction appears to boost the opacity above ~4e8 K and\nwould likely introdu
ce additional effects.
DTSTART:20231207T160000Z
DTEND:20231207T170000Z
LAST-MODIFIED:20231204T140650Z
LOCATION:Bloomberg Lecture Hall
SUMMARY:Institute for Advanced Study Astrophysics Seminar
URL:https://www.ias.edu/sns/events/institute-advanced-study-astrophysics-se
minar-84
END:VEVENT
BEGIN:VEVENT
UID:32613831-6462-4465-b332-633434626164
DTSTAMP:20231205T044450Z
CREATED:20231204T140821Z
DESCRIPTION:Topic: Multi-probe cosmology forecasts for LSST\n\nSpeakers: He
ather Prince\n\nThe Vera C. Rubin Observatory’s Legacy Survey of Space and
Time\n(LSST) will constrain our models of the universe through observatio
ns\nof galaxies and galaxy clusters as well as transients such as\nsuperno
vae and strongly lensed quasars. We analyze simulated LSST data\nusing the
Dark Energy Science Collaboration cosmology pipeline to\nobtain forecasts
for cosmological parameters. We also explore how\nvarious systematic sour
ces of uncertainty affect our predicted\ncosmological constraints.
DTSTART:20231207T190000Z
DTEND:20231207T200000Z
LAST-MODIFIED:20231204T140952Z
LOCATION:Serin Hall Rm W330\, Rutgers and Zoom
SUMMARY:Rutgers University Astrophysics Seminar
URL:https://www.ias.edu/sns/events/rutgers-university-astrophysics-seminar-
33
END:VEVENT
BEGIN:VEVENT
UID:63353261-3561-4335-b435-383364656234
DTSTAMP:20231205T044450Z
CREATED:20230810T192707Z
DESCRIPTION:Topic: Three 20-min Research Talks\n\nSpeakers: Julien Dardenne
s\, Arnaud Maret\, Luya Wang\n\n *\nJULIEN DARDENNES: The Coarse Distance f
rom Dynamically Convex to\nConvex:\n\nChaidez and Edtmair have recently fo
und the first examples of\ndynamically convex domains in $R^4$ that are no
t symplectomorphic to\nconvex domains\, answering a long-standing open que
stion.\nIn this talk\, we present new examples of such domains without\nre
ferring to Chaidez-Edtmair’s criterion. We also show that these\ndomains a
re arbitrarily far from the set of symplectically convex\ndomains in $R^4$
with respect to the coarse symplectic Banach-Mazur\ndistance by using an
explicit numerical criterion for symplectic\nnon-convexity (joint work wit
h J. Gutt\, V. Ramos and J. Zhang).\n\n *\nARNAUD MARET: Complex Projective
Spaces Via Surface Groups\nRepresentations:\n\nMy plan is to explain how
complex projective spaces can be identified\nwith components of totally el
liptic representations of the fundamental\ngroup of a punctured sphere int
o $PLS(2\,R)$. I will explain how this\nidentification realizes the pure m
apping class group of the punctured\nsphere as a subgroup of the group of
Hamiltonian diffeomorphisms of\nthe complex projective space.\n\n *\nLUYA W
ANG: Deformation Inequivalent Symplectic Structures and\nDonaldson's Four-
six Question\n\nStudying symplectic structures up to deformation equivalen
ces is a\nfundamental question in symplectic geometry. Donaldson asked: gi
ven\ntwo homeomorphic closed symplectic four-manifolds\, are they\ndiffeom
orphic if and only if their stabilized symplectic\nsix-manifolds\, obtaine
d by taking products with $CP^1$ with the\nstandard symplectic form\, are
deformation equivalent? I will discuss\njoint work with Amanda Hirschi on
showing how deformation inequivalent\nsymplectic forms remain deformation
inequivalent when stabilized\,\nunder certain algebraic conditions. This g
ives the first\ncounterexamples to one direction of Donaldson’s “four-six”
\nquestion and the related Stabilizing Conjecture by Ruan.
DTSTART:20231208T141500Z
DTEND:20231208T154500Z
LAST-MODIFIED:20231130T190431Z
LOCATION:Remote Access
SUMMARY:Joint IAS/Princeton/Montreal/Paris/Tel-Aviv Symplectic Geometry Zoo
minar
URL:https://www.ias.edu/math/events/joint-iasprincetonmontrealparistel-aviv
-symplectic-geometry-zoominar-132
END:VEVENT
BEGIN:VEVENT
UID:32396136-6661-4033-b532-393034373734
DTSTAMP:20231205T044450Z
CREATED:20231201T144239Z
DESCRIPTION:Topic: What is a Persistence Module?\n\nSpeakers: Shira Tanny
DTSTART:20231208T180000Z
DTEND:20231208T190000Z
LAST-MODIFIED:20231201T144354Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:What is...?
URL:https://www.ias.edu/math/events/what-18
END:VEVENT
BEGIN:VEVENT
UID:37313131-3063-4462-a262-383531386165
DTSTAMP:20231205T044450Z
CREATED:20230809T195130Z
DESCRIPTION:Topic: Solid Quasi-Coherent Sheaves\n\nSpeakers: Hanlin Cai\n\n
We will globalize the notion of solid modules to an arbitrary\nscheme/disc
rete adic space.
DTSTART:20231208T193000Z
DTEND:20231208T213000Z
LAST-MODIFIED:20231130T135207Z
LOCATION:Princeton University\, Fine Hall 314
SUMMARY:Condensed Learning Seminar
URL:https://www.ias.edu/math/events/condensed-learning-seminar-5
END:VEVENT
BEGIN:VEVENT
UID:65613839-3032-4064-b733-373865373766
DTSTAMP:20231205T044450Z
CREATED:20230810T132607Z
DESCRIPTION:Topic: The Influence of Edges in First-Passage Percolation on Z
^d\n\nSpeakers: Dor Elboim\n\nWe study the probability that a geodesic pas
ses through a prescribed\nedge in first-passage percolation on Z^d. Benjam
ini\, Kalai and Schramm\nconjectured that this probability tends to zero a
s the length of the\ngeodesic tends to infinity\, as long as the edge is n
ot too close to\nthe endpoints of the geodesic. I will present a short pro
of that this\nprobability is arbitrarily small for all edges except for co
nstantly\nmany of them. I will also discuss the connection of this problem
to\nthe phenomenon of coalescence of geodesics.\n\nThis is a joint work w
ith Ron Peled and Barbara Dembin.
DTSTART:20231208T193000Z
DTEND:20231208T203000Z
LAST-MODIFIED:20231127T143050Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Analysis and Mathematical Physics
URL:https://www.ias.edu/math/events/analysis-and-mathematical-physics-17
END:VEVENT
BEGIN:VEVENT
UID:34373437-3038-4938-b535-633038626531
DTSTAMP:20231205T044450Z
CREATED:20230809T190219Z
DESCRIPTION:Topic: Online Omniprediction\n\nSpeakers: Sumegha Garg\n\nA rec
ent line of work has shown a surprising connection between\nmulticalibrati
on\, a multi-group fairness notion\, and omniprediction\, a\nlearning para
digm that provides simultaneous loss minimization\nguarantees for a large
family of loss functions [GKR+22\, GHK+23 \,\nGKR23 \, GHHK+23]. Prior wor
k studies omniprediction in the batch\nsetting. Our work initiates the stu
dy of omniprediction in the online\nadversarial setting. In the talk\, we
will briefly see the definitions\nand motivations for these theoretic noti
ons\, and then survey the new\nresults for online omniprediction. \n\nOur
contributions are two-fold:\n\n * We develop a new online multicalibration
algorithm that is well\ndefined for infinite benchmark classes F (e.g. the
set of all linear\nfunctions)\, and is oracle efficient — i.e. for any cl
ass F\, the\nalgorithm has the form of an efficient reduction to a no-regr
et\nlearning algorithm for F. This implies an oracle efficient online\nomn
ipredictor — an online prediction algorithm that can be used to\nsimultane
ously obtain no regret guarantees to all Lipschitz convex\nloss functions.
\n * We show upper and lower bounds on the extent to which our regret\nrat
es can be improved. \n\nJoint work with Christopher Jung\, Omer Reingold a
nd Aaron Roth.\n\n
DTSTART:20231211T161500Z
DTEND:20231211T171500Z
LAST-MODIFIED:20231130T194041Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Computer Science/Discrete Mathematics Seminar I
URL:https://www.ias.edu/math/events/computer-sciencediscrete-mathematics-se
minar-i-555
END:VEVENT
BEGIN:VEVENT
UID:31383464-6265-4631-a634-363930386363
DTSTAMP:20231205T044450Z
CREATED:20230908T164637Z
DESCRIPTION:Topic: TBA
DTSTART:20231211T170000Z
DTEND:20231211T180000Z
LAST-MODIFIED:20230908T164804Z
LOCATION:Zoom and Peyton Dome Rm\, Princeton University
SUMMARY:Princeton University Extrasolar Planet Discussion Group
URL:https://www.ias.edu/sns/events/princeton-university-extrasolar-planet-d
iscussion-group-97
END:VEVENT
BEGIN:VEVENT
UID:32616366-3730-4537-b964-336231646530
DTSTAMP:20231205T044450Z
CREATED:20230810T194959Z
DESCRIPTION:Topic: TBA\n\nSpeakers: Oliver Edtmair
DTSTART:20231211T173000Z
DTEND:20231211T184500Z
LAST-MODIFIED:20231130T182126Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Symplectic Geometry Seminar
URL:https://www.ias.edu/math/events/symplectic-geometry-seminar-7
END:VEVENT
BEGIN:VEVENT
UID:32303163-3933-4530-b033-373066643131
DTSTAMP:20231205T044450Z
CREATED:20230810T125811Z
DESCRIPTION:Topic: TBD
DTSTART:20231211T190000Z
DTEND:20231211T200000Z
LAST-MODIFIED:20231106T182348Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Members' Colloquium
URL:https://www.ias.edu/math/events/members-colloquium-60
END:VEVENT
BEGIN:VEVENT
UID:35303032-6135-4232-b638-303265373638
DTSTAMP:20231205T044450Z
CREATED:20230908T184307Z
DESCRIPTION:Topic: TBD\n\nSpeakers: Akshay Venkatesh
DTSTART:20231211T213000Z
DTEND:20231211T223000Z
LAST-MODIFIED:20231204T161637Z
LOCATION:Princeton University\, Fine Hall 314
SUMMARY:Joint IAS/Princeton Arithmetic Geometry Seminar
URL:https://www.ias.edu/math/events/joint-iasprinceton-arithmetic-geometry-
seminar-11
END:VEVENT
BEGIN:VEVENT
UID:33323930-3366-4639-b365-316132323639
DTSTAMP:20231205T044450Z
CREATED:20230926T155456Z
DESCRIPTION:Speakers: Mingjia Zhang
DTSTART:20231213T190000Z
DTEND:20231213T200000Z
LAST-MODIFIED:20231002T142058Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Special Year Seminar
URL:https://www.ias.edu/math/events/special-year-seminar-7
END:VEVENT
BEGIN:VEVENT
UID:31316561-6335-4335-b165-656466393763
DTSTAMP:20231205T044450Z
CREATED:20230810T190909Z
DESCRIPTION:Topic: TBA
DTSTART:20231213T230000Z
DTEND:20231214T010000Z
LAST-MODIFIED:20230810T190939Z
LOCATION:Birch Garden\, Simons Hall
SUMMARY:Mathematical Conversations
URL:https://www.ias.edu/math/events/mathematical-conversations-268
END:VEVENT
BEGIN:VEVENT
UID:64376533-6433-4862-b739-666262663365
DTSTAMP:20231205T044450Z
CREATED:20230816T130940Z
DESCRIPTION:Topic: TBD
DTSTART:20231214T213000Z
DTEND:20231214T223000Z
LAST-MODIFIED:20231106T182803Z
LOCATION:*Princeton University\, Fine 214*
SUMMARY:Joint PU/IAS Number Theory
URL:https://www.ias.edu/math/events/joint-puias-number-theory-2
END:VEVENT
BEGIN:VEVENT
UID:62643366-3136-4265-a666-616565313439
DTSTAMP:20231205T044450Z
CREATED:20231128T191757Z
DESCRIPTION:Topic: TBD\n\nSpeakers: Kartik Prasanna\n\nTBA
DTSTART:20231214T213000Z
DTEND:20231214T223000Z
LAST-MODIFIED:20231128T192027Z
LOCATION:*Princeton University\, Fine 214*
SUMMARY:Joint PU/IAS Number Theory
URL:https://www.ias.edu/math/events/joint-puias-number-theory-7
END:VEVENT
BEGIN:VEVENT
UID:61363965-3637-4634-b438-336433663464
DTSTAMP:20231205T044450Z
CREATED:20230810T192747Z
DESCRIPTION:Topic: TBA\n\nSpeakers: John Etnyre
DTSTART:20231215T141500Z
DTEND:20231215T154500Z
LAST-MODIFIED:20231130T191630Z
LOCATION:Remote Access
SUMMARY:Joint IAS/Princeton/Montreal/Paris/Tel-Aviv Symplectic Geometry Zoo
minar
URL:https://www.ias.edu/math/events/joint-iasprincetonmontrealparistel-aviv
-symplectic-geometry-zoominar-133
END:VEVENT
BEGIN:VEVENT
UID:32316461-3730-4533-b739-623465643563
DTSTAMP:20231205T044450Z
CREATED:20230809T195158Z
DESCRIPTION:Topic: TBD\n\nSpeakers: Tasos Moulinos
DTSTART:20231215T193000Z
DTEND:20231215T213000Z
LAST-MODIFIED:20231004T131006Z
LOCATION:Princeton University\, Fine Hall 314
SUMMARY:Condensed Learning Seminar
URL:https://www.ias.edu/math/events/condensed-learning-seminar-6
END:VEVENT
BEGIN:VEVENT
UID:31323230-3430-4666-a335-363338366339
DTSTAMP:20231205T044450Z
CREATED:20230810T132645Z
DESCRIPTION:Topic: PDE and Discrete Models of 2D Quantum Materials\n\nSpeak
ers: Michael I. Weinstein\n\nWe consider 2D quantum materials (non-magneti
c and constant magnetic\nfield cases)\, modeled by a continuum Schroedinge
r operator\, whose\npotential is a sum of translates of an atomic well\, c
entered on the\nvertices of a discrete subset of the plane\, Omega. In the
regime of\ndeep potential wells (strong binding —> tight binding limit)\,
a\ncentered and rescaled resolvent operator converges to the resolvent of
\na discrete (tight-binding) effective Hamiltonian\, yielding a blown up\n
picture of the low-lying energy spectrum. Examples include the tight\nbind
ing limit of the single electron model for bulk graphene\n(Omega=honeycomb
lattice)\, a sharply terminated graphene half-space\,\ninterfaced with th
e vacuum along an arbitrary line-cut\, and the Harper\nmodel. For magnetic
Hamiltonians\, recent results on lower bounds for\nthe tunneling probabil
ity between identical wells\, in the presence of\na strong constant magnet
ic field\, play a central role. Finally\, we\npresent our current understa
nding of the spectrum of the tight binding\nHamiltonian which arises for t
he case of a graphene half-space\,\nterminated along an arbitrary rational
line-cut.
DTSTART:20231215T193000Z
DTEND:20231215T203000Z
LAST-MODIFIED:20231204T161507Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Analysis and Mathematical Physics
URL:https://www.ias.edu/math/events/analysis-and-mathematical-physics-18
END:VEVENT
BEGIN:VEVENT
UID:62333131-6663-4338-a332-313039373663
DTSTAMP:20231205T044450Z
CREATED:20230908T143740Z
DESCRIPTION:Topic: The present-day gas content of simulated field dwarf gal
axies\n\nSpeakers: Georg Herzog\n\nEach week\, we hold a relatively inform
al seminar/discussion series\nwith an emphasis on extra-galactic and large
-scale structure\nastrophysics.\n\nDuring Galread a leader/visitor present
s a recent paper to the\ndiscussion group. The PDF of the paper is project
ed onto a large\nscreen\, and a guest explains the paper\, section by sect
ion\, in greater\ndetail than may be explained within the text of the arti
cle. To aid\nwith discussion\, only the article PDF is presented -- no\npo
werpoint-style slides. Galread discussions are very friendly and\ninteract
ive.
DTSTART:20231218T160000Z
DTEND:20231218T170000Z
LAST-MODIFIED:20230908T143847Z
LOCATION:Zoom and Peyton Hall\, Grand Central
SUMMARY:Princeton University Galread [Galactic/Extragalactic Reading Group]
URL:https://www.ias.edu/sns/events/princeton-university-galread-galacticext
ragalactic-reading-group-85
END:VEVENT
BEGIN:VEVENT
UID:66373439-3931-4434-b366-336137303265
DTSTAMP:20231205T044450Z
CREATED:20230810T195100Z
DESCRIPTION:Topic: TBA\n\nSpeakers: Julian Chaidez
DTSTART:20231218T173000Z
DTEND:20231218T184500Z
LAST-MODIFIED:20231130T183616Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Symplectic Geometry Seminar
URL:https://www.ias.edu/math/events/symplectic-geometry-seminar-8
END:VEVENT
BEGIN:VEVENT
UID:62313635-6435-4339-b835-366365653536
DTSTAMP:20231205T044450Z
CREATED:20230810T125837Z
DESCRIPTION:Topic: TBD
DTSTART:20231218T190000Z
DTEND:20231218T200000Z
LAST-MODIFIED:20231106T182436Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Members' Colloquium
URL:https://www.ias.edu/math/events/members-colloquium-61
END:VEVENT
BEGIN:VEVENT
UID:30333962-3937-4739-b633-373762393836
DTSTAMP:20231205T044450Z
CREATED:20230811T153848Z
DESCRIPTION:Topic: TBD
DTSTART:20231218T213000Z
DTEND:20231218T223000Z
LAST-MODIFIED:20230907T172224Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Joint IAS/Princeton Arithmetic Geometry Seminar
URL:https://www.ias.edu/math/events/joint-iasprinceton-arithmetic-geometry-
seminar-9
END:VEVENT
BEGIN:VEVENT
UID:64313136-3465-4037-b766-653061303831
DTSTAMP:20231205T044450Z
CREATED:20230810T190950Z
DESCRIPTION:Topic: TBA
DTSTART:20231220T230000Z
DTEND:20231221T010000Z
LAST-MODIFIED:20230810T191024Z
LOCATION:Birch Garden\, Simons Hall
SUMMARY:Mathematical Conversations
URL:https://www.ias.edu/math/events/mathematical-conversations-269
END:VEVENT
BEGIN:VEVENT
UID:61623764-6564-4137-b734-366632393031
DTSTAMP:20231205T044450Z
CREATED:20230817T141728Z
DESCRIPTION:Topic: TBD
DTSTART:20231221T213000Z
DTEND:20231221T223000Z
LAST-MODIFIED:20230817T141748Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Joint PU/IAS Number Theory
URL:https://www.ias.edu/math/events/joint-puias-number-theory-9
END:VEVENT
BEGIN:VEVENT
UID:34666536-3261-4564-b836-393838333531
DTSTAMP:20231205T044450Z
CREATED:20230810T192824Z
DESCRIPTION:Topic: TBA
DTSTART:20231222T141500Z
DTEND:20231222T154500Z
LAST-MODIFIED:20231010T155600Z
LOCATION:Remote Access
SUMMARY:Joint IAS/Princeton/Montreal/Paris/Tel-Aviv Symplectic Geometry Zoo
minar
URL:https://www.ias.edu/math/events/joint-iasprincetonmontrealparistel-aviv
-symplectic-geometry-zoominar-134
END:VEVENT
BEGIN:VEVENT
UID:33326431-3234-4436-a434-373362623938
DTSTAMP:20231205T044450Z
CREATED:20231204T163818Z
DESCRIPTION:Topic: TBD\n\nTBA
DTSTART:20240118T200000Z
DTEND:20240118T211500Z
LAST-MODIFIED:20231204T182042Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Number Theory Learning Seminar
URL:https://www.ias.edu/events/number-theory-learning-seminar
END:VEVENT
BEGIN:VEVENT
UID:32636336-3134-4662-a636-643730343162
DTSTAMP:20231205T044450Z
CREATED:20231204T164929Z
DESCRIPTION:Topic: TBD\n\nTBA
DTSTART:20240118T213000Z
DTEND:20240118T223000Z
LAST-MODIFIED:20231204T165057Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Joint PU/IAS Number Theory
URL:https://www.ias.edu/math/events/joint-puias-number-theory-6
END:VEVENT
BEGIN:VEVENT
UID:39333362-3239-4266-b533-336262666566
DTSTAMP:20231205T044450Z
CREATED:20231204T183714Z
DESCRIPTION:Topic: TBD
DTSTART:20240122T190000Z
DTEND:20240122T200000Z
LAST-MODIFIED:20231204T184026Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Members' Colloquium
URL:https://www.ias.edu/math/events/members-colloquium-59
END:VEVENT
BEGIN:VEVENT
UID:34383433-3730-4330-b336-633261393630
DTSTAMP:20231205T044450Z
CREATED:20231128T141908Z
DESCRIPTION:
DTSTART:20240123T190000Z
DTEND:20240123T191500Z
LAST-MODIFIED:20231128T142422Z
LOCATION:
SUMMARY:Short Talks by Postdoctoral Members
URL:https://www.ias.edu/events/short-talks-postdoctoral-members-353
END:VEVENT
BEGIN:VEVENT
UID:34343736-3739-4331-b838-626633363066
DTSTAMP:20231205T044450Z
CREATED:20231204T164424Z
DESCRIPTION:Topic: TBD\n\nTBA
DTSTART:20240125T200000Z
DTEND:20240125T211500Z
LAST-MODIFIED:20231204T182155Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Number Theory Learning Seminar
URL:https://www.ias.edu/events/number-theory-learning-seminar-0
END:VEVENT
BEGIN:VEVENT
UID:38623233-6161-4161-b766-306263626636
DTSTAMP:20231205T044450Z
CREATED:20231204T165135Z
DESCRIPTION:Topic: TBD\n\nTBA
DTSTART:20240125T213000Z
DTEND:20240125T223000Z
LAST-MODIFIED:20231204T165149Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Joint PU/IAS Number Theory
URL:https://www.ias.edu/math/events/joint-puias-number-theory-8
END:VEVENT
BEGIN:VEVENT
UID:30663536-3639-4166-b830-393630666562
DTSTAMP:20231205T044450Z
CREATED:20231204T183739Z
DESCRIPTION:Topic: TBD
DTSTART:20240129T190000Z
DTEND:20240129T200000Z
LAST-MODIFIED:20231204T184046Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Members' Colloquium
URL:https://www.ias.edu/math/events/members-colloquium-62
END:VEVENT
BEGIN:VEVENT
UID:37623839-6138-4632-b136-613039356130
DTSTAMP:20231205T044450Z
CREATED:20231204T164446Z
DESCRIPTION:Topic: TBD\n\nTBA
DTSTART:20240201T200000Z
DTEND:20240201T211500Z
LAST-MODIFIED:20231204T182914Z
LOCATION:*Princeton University\, Fine Hall 224*
SUMMARY:Number Theory Learning Seminar
URL:https://www.ias.edu/events/number-theory-learning-seminar-1
END:VEVENT
BEGIN:VEVENT
UID:32393133-3161-4438-b966-353835626233
DTSTAMP:20231205T044450Z
CREATED:20231204T183226Z
DESCRIPTION:Topic: TBD\n\nTBA
DTSTART:20240201T213000Z
DTEND:20240201T223000Z
LAST-MODIFIED:20231204T183246Z
LOCATION:*Princeton University\, Fine Hall 224*
SUMMARY:Joint PU/IAS Number Theory
URL:https://www.ias.edu/math/events/joint-puias-number-theory-26
END:VEVENT
BEGIN:VEVENT
UID:64323435-3735-4466-a631-613032353835
DTSTAMP:20231205T044450Z
CREATED:20231204T183804Z
DESCRIPTION:Topic: TBD
DTSTART:20240205T190000Z
DTEND:20240205T200000Z
LAST-MODIFIED:20231204T184101Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Members' Colloquium
URL:https://www.ias.edu/math/events/members-colloquium-64
END:VEVENT
BEGIN:VEVENT
UID:61326562-3338-4635-b334-633263383066
DTSTAMP:20231205T044450Z
CREATED:20231204T165155Z
DESCRIPTION:Topic: TBD\n\nTBA
DTSTART:20240208T213000Z
DTEND:20240208T223000Z
LAST-MODIFIED:20231204T165211Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Joint PU/IAS Number Theory
URL:https://www.ias.edu/math/events/joint-puias-number-theory-12
END:VEVENT
BEGIN:VEVENT
UID:66383338-3764-4362-b865-626430356336
DTSTAMP:20231205T044450Z
CREATED:20231204T183824Z
DESCRIPTION:Topic: TBD
DTSTART:20240212T190000Z
DTEND:20240212T200000Z
LAST-MODIFIED:20231204T184118Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Members' Colloquium
URL:https://www.ias.edu/math/events/members-colloquium-63
END:VEVENT
BEGIN:VEVENT
UID:36353361-6162-4461-a536-613639666163
DTSTAMP:20231205T044450Z
CREATED:20230804T153211Z
DESCRIPTION:Topic: Asterisms – the relations among their verbal\, numerical
\, and visual representations across cultures in research and public outre
ach\n\nConveners: SONJA BRENTJES (IAS School of Historical Studies and Max
\nPlanck Institute for the History of Science\, Berlin) and SABINE\nSCHMID
TKE (School of Historical Studies\, IAS).\n\nDetails to follow at a later
time.
DTSTART:20240214T140000Z
DTEND:20240215T220000Z
LAST-MODIFIED:20230804T154854Z
LOCATION:White-Levy Room
SUMMARY:NES Workshop
URL:https://www.ias.edu/hs/events/nes-workshop
END:VEVENT
BEGIN:VEVENT
UID:37396261-6161-4437-b761-356264623939
DTSTAMP:20231205T044450Z
CREATED:20231204T182919Z
DESCRIPTION:Topic: TBD\n\nTBA
DTSTART:20240215T200000Z
DTEND:20240215T211500Z
LAST-MODIFIED:20231204T182935Z
LOCATION:*Princeton University\, Fine Hall 224*
SUMMARY:Number Theory Learning Seminar
URL:https://www.ias.edu/events/number-theory-learning-seminar-8
END:VEVENT
BEGIN:VEVENT
UID:38633837-3966-4133-b339-393632643865
DTSTAMP:20231205T044450Z
CREATED:20231204T165638Z
DESCRIPTION:Topic: TBD\n\nTBA
DTSTART:20240215T213000Z
DTEND:20240215T223000Z
LAST-MODIFIED:20231204T165852Z
LOCATION:*Princeton University\, Fine 214*
SUMMARY:Joint PU/IAS Number Theory
URL:https://www.ias.edu/math/events/joint-puias-number-theory-19
END:VEVENT
BEGIN:VEVENT
UID:32323133-3530-4232-a534-303630616136
DTSTAMP:20231205T044450Z
CREATED:20231204T183258Z
DESCRIPTION:Topic: TBD\n\nTBA
DTSTART:20240215T213000Z
DTEND:20240215T223000Z
LAST-MODIFIED:20231204T183314Z
LOCATION:*Princeton University\, Fine Hall 224*
SUMMARY:Joint PU/IAS Number Theory
URL:https://www.ias.edu/math/events/joint-puias-number-theory-27
END:VEVENT
BEGIN:VEVENT
UID:34396632-6538-4738-a536-633334613930
DTSTAMP:20231205T044450Z
CREATED:20231204T164629Z
DESCRIPTION:Topic: TBD\n\nTBA
DTSTART:20240222T200000Z
DTEND:20240222T211500Z
LAST-MODIFIED:20231204T182252Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Number Theory Learning Seminar
URL:https://www.ias.edu/events/number-theory-learning-seminar-2
END:VEVENT
BEGIN:VEVENT
UID:63316336-3566-4663-a632-633839373666
DTSTAMP:20231205T044450Z
CREATED:20231204T165216Z
DESCRIPTION:Topic: TBD\n\nTBA
DTSTART:20240222T213000Z
DTEND:20240222T223000Z
LAST-MODIFIED:20231204T165231Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Joint PU/IAS Number Theory
URL:https://www.ias.edu/math/events/joint-puias-number-theory-13
END:VEVENT
BEGIN:VEVENT
UID:66393338-6133-4435-b935-373064373234
DTSTAMP:20231205T044450Z
CREATED:20231204T184124Z
DESCRIPTION:Topic: TBD
DTSTART:20240226T190000Z
DTEND:20240226T200000Z
LAST-MODIFIED:20231204T184148Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Members' Colloquium
URL:https://www.ias.edu/math/events/members-colloquium-65
END:VEVENT
BEGIN:VEVENT
UID:36363837-3833-4363-b861-343531636166
DTSTAMP:20231205T044450Z
CREATED:20231204T182940Z
DESCRIPTION:Topic: TBD\n\nTBA
DTSTART:20240229T200000Z
DTEND:20240229T211500Z
LAST-MODIFIED:20231204T182956Z
LOCATION:*Princeton University\, Fine Hall 224*
SUMMARY:Number Theory Learning Seminar
URL:https://www.ias.edu/events/number-theory-learning-seminar-9
END:VEVENT
BEGIN:VEVENT
UID:35616564-3233-4239-a230-366264313231
DTSTAMP:20231205T044450Z
CREATED:20231204T165905Z
DESCRIPTION:Topic: TBD\n\nTBA
DTSTART:20240229T213000Z
DTEND:20240229T223000Z
LAST-MODIFIED:20231204T165921Z
LOCATION:*Princeton University\, Fine 214*
SUMMARY:Joint PU/IAS Number Theory
URL:https://www.ias.edu/math/events/joint-puias-number-theory-20
END:VEVENT
BEGIN:VEVENT
UID:35333961-3636-4537-b233-616265306337
DTSTAMP:20231205T044450Z
CREATED:20231204T183324Z
DESCRIPTION:Topic: TBD\n\nTBA
DTSTART:20240229T213000Z
DTEND:20240229T223000Z
LAST-MODIFIED:20231204T183400Z
LOCATION:*Princeton University\, Fine Hall 224*
SUMMARY:Joint PU/IAS Number Theory
URL:https://www.ias.edu/math/events/joint-puias-number-theory-28
END:VEVENT
BEGIN:VEVENT
UID:38616462-6232-4337-a132-336265386533
DTSTAMP:20231205T044450Z
CREATED:20231204T184152Z
DESCRIPTION:Topic: TBD
DTSTART:20240304T190000Z
DTEND:20240304T200000Z
LAST-MODIFIED:20231204T184211Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Members' Colloquium
URL:https://www.ias.edu/math/events/members-colloquium-66
END:VEVENT
BEGIN:VEVENT
UID:36393561-3836-4265-a531-393033353231
DTSTAMP:20231205T044450Z
CREATED:20231204T164648Z
DESCRIPTION:Topic: TBD\n\nTBA
DTSTART:20240307T200000Z
DTEND:20240307T211500Z
LAST-MODIFIED:20231204T182501Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Number Theory Learning Seminar
URL:https://www.ias.edu/events/number-theory-learning-seminar-3
END:VEVENT
BEGIN:VEVENT
UID:63363638-3138-4463-b661-323733663235
DTSTAMP:20231205T044450Z
CREATED:20231204T165236Z
DESCRIPTION:Topic: TBD\n\nTBA
DTSTART:20240307T213000Z
DTEND:20240307T223000Z
LAST-MODIFIED:20231204T165251Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Joint PU/IAS Number Theory
URL:https://www.ias.edu/math/events/joint-puias-number-theory-14
END:VEVENT
BEGIN:VEVENT
UID:63306637-3035-4163-a638-636337373362
DTSTAMP:20231205T044450Z
CREATED:20231204T184217Z
DESCRIPTION:Topic: TBD
DTSTART:20240311T180000Z
DTEND:20240311T190000Z
LAST-MODIFIED:20231204T184234Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Members' Colloquium
URL:https://www.ias.edu/math/events/members-colloquium-67
END:VEVENT
BEGIN:VEVENT
UID:35613533-6564-4433-a636-653438646238
DTSTAMP:20231205T044450Z
CREATED:20231204T183002Z
DESCRIPTION:Topic: TBD\n\nTBA
DTSTART:20240314T190000Z
DTEND:20240314T201500Z
LAST-MODIFIED:20231204T183023Z
LOCATION:*Princeton University\, Fine Hall 224*
SUMMARY:Number Theory Learning Seminar
URL:https://www.ias.edu/events/number-theory-learning-seminar-10
END:VEVENT
BEGIN:VEVENT
UID:37343939-6232-4231-a436-633031336565
DTSTAMP:20231205T044450Z
CREATED:20231204T181646Z
DESCRIPTION:Topic: TBD\n\nTBA
DTSTART:20240314T203000Z
DTEND:20240314T213000Z
LAST-MODIFIED:20231204T181711Z
LOCATION:*Princeton University\, Fine 214*
SUMMARY:Joint PU/IAS Number Theory
URL:https://www.ias.edu/math/events/joint-puias-number-theory-21
END:VEVENT
BEGIN:VEVENT
UID:39653234-6332-4631-a164-636531666463
DTSTAMP:20231205T044450Z
CREATED:20231204T183405Z
DESCRIPTION:Topic: TBD\n\nTBA
DTSTART:20240314T203000Z
DTEND:20240314T213000Z
LAST-MODIFIED:20231204T183423Z
LOCATION:*Princeton University\, Fine Hall 224*
SUMMARY:Joint PU/IAS Number Theory
URL:https://www.ias.edu/math/events/joint-puias-number-theory-29
END:VEVENT
BEGIN:VEVENT
UID:34663661-6338-4064-a664-663261363439
DTSTAMP:20231205T044450Z
CREATED:20231204T184238Z
DESCRIPTION:Topic: TBD
DTSTART:20240318T180000Z
DTEND:20240318T190000Z
LAST-MODIFIED:20231204T184251Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Members' Colloquium
URL:https://www.ias.edu/math/events/members-colloquium-68
END:VEVENT
BEGIN:VEVENT
UID:33323138-6537-4766-a533-626133336630
DTSTAMP:20231205T044450Z
CREATED:20231204T164709Z
DESCRIPTION:Topic: TBD\n\nTBA
DTSTART:20240321T190000Z
DTEND:20240321T201500Z
LAST-MODIFIED:20231204T182521Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Number Theory Learning Seminar
URL:https://www.ias.edu/events/number-theory-learning-seminar-4
END:VEVENT
BEGIN:VEVENT
UID:63643736-6362-4262-b334-333733323833
DTSTAMP:20231205T044450Z
CREATED:20231204T165257Z
DESCRIPTION:Topic: TBD\n\nTBA
DTSTART:20240321T203000Z
DTEND:20240321T213000Z
LAST-MODIFIED:20231204T165313Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Joint PU/IAS Number Theory
URL:https://www.ias.edu/math/events/joint-puias-number-theory-15
END:VEVENT
BEGIN:VEVENT
UID:63376565-6634-4664-a232-653936336431
DTSTAMP:20231205T044450Z
CREATED:20230804T154555Z
DESCRIPTION:Topic: Scholarly Digital Editions of Arabic-Script Texts\n\nCon
veners: ADAM MESTYAN (School of Historical Studies\, IAS and Duke\nUnivers
ity)\, SABINE SCHMIDTKE (School of Historical Studies\, IAS) and\nMARÍA ME
RCEDES TUYA (Digital Scholarship @IAS). Details to follow at\na later time
.\n\n
DTSTART:20240322T130000Z
DTEND:20240322T210000Z
LAST-MODIFIED:20230822T132750Z
LOCATION:White-Levy Room
SUMMARY:NES Workshop
URL:https://www.ias.edu/hs/events/nes-workshop-1
END:VEVENT
BEGIN:VEVENT
UID:39383465-3964-4333-b434-363461353661
DTSTAMP:20231205T044450Z
CREATED:20231204T184255Z
DESCRIPTION:Topic: TBD
DTSTART:20240325T180000Z
DTEND:20240325T190000Z
LAST-MODIFIED:20231204T184309Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Members' Colloquium
URL:https://www.ias.edu/math/events/members-colloquium-69
END:VEVENT
BEGIN:VEVENT
UID:66663134-3364-4337-b137-346334306562
DTSTAMP:20231205T044450Z
CREATED:20231204T183028Z
DESCRIPTION:Topic: TBD\n\nTBA
DTSTART:20240328T190000Z
DTEND:20240328T201500Z
LAST-MODIFIED:20231204T183041Z
LOCATION:*Princeton University\, Fine Hall 224*
SUMMARY:Number Theory Learning Seminar
URL:https://www.ias.edu/events/number-theory-learning-seminar-11
END:VEVENT
BEGIN:VEVENT
UID:65666234-3335-4538-a432-333033653437
DTSTAMP:20231205T044450Z
CREATED:20231204T181735Z
DESCRIPTION:Topic: TBD\n\nTBA
DTSTART:20240328T203000Z
DTEND:20240328T213000Z
LAST-MODIFIED:20231204T181750Z
LOCATION:*Princeton University\, Fine 214*
SUMMARY:Joint PU/IAS Number Theory
URL:https://www.ias.edu/math/events/joint-puias-number-theory-22
END:VEVENT
BEGIN:VEVENT
UID:34393039-6462-4062-a463-643336306635
DTSTAMP:20231205T044450Z
CREATED:20231204T183427Z
DESCRIPTION:Topic: TBD\n\nTBA
DTSTART:20240328T203000Z
DTEND:20240328T213000Z
LAST-MODIFIED:20231204T183442Z
LOCATION:*Princeton University\, Fine Hall 224*
SUMMARY:Joint PU/IAS Number Theory
URL:https://www.ias.edu/math/events/joint-puias-number-theory-30
END:VEVENT
BEGIN:VEVENT
UID:34663233-3030-4434-b561-353931303135
DTSTAMP:20231205T044450Z
CREATED:20231204T184313Z
DESCRIPTION:Topic: TBD
DTSTART:20240401T180000Z
DTEND:20240401T190000Z
LAST-MODIFIED:20231204T184328Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Members' Colloquium
URL:https://www.ias.edu/math/events/members-colloquium-70
END:VEVENT
BEGIN:VEVENT
UID:38333861-3831-4162-b766-633762386135
DTSTAMP:20231205T044450Z
CREATED:20231204T164731Z
DESCRIPTION:Topic: TBD\n\nTBA
DTSTART:20240404T190000Z
DTEND:20240404T201500Z
LAST-MODIFIED:20231204T182619Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Number Theory Learning Seminar
URL:https://www.ias.edu/events/number-theory-learning-seminar-5
END:VEVENT
BEGIN:VEVENT
UID:65396164-6530-4538-a265-323866323363
DTSTAMP:20231205T044450Z
CREATED:20231204T165318Z
DESCRIPTION:Topic: TBD\n\nTBA
DTSTART:20240404T203000Z
DTEND:20240404T213000Z
LAST-MODIFIED:20231204T165337Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Joint PU/IAS Number Theory
URL:https://www.ias.edu/math/events/joint-puias-number-theory-16
END:VEVENT
BEGIN:VEVENT
UID:65626131-3233-4162-b462-376262623437
DTSTAMP:20231205T044450Z
CREATED:20231204T184335Z
DESCRIPTION:Topic: TBD
DTSTART:20240408T180000Z
DTEND:20240408T190000Z
LAST-MODIFIED:20231204T184350Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Members' Colloquium
URL:https://www.ias.edu/math/events/members-colloquium-71
END:VEVENT
BEGIN:VEVENT
UID:37313266-3032-4737-a661-663362396464
DTSTAMP:20231205T044450Z
CREATED:20231204T183046Z
DESCRIPTION:Topic: TBD\n\nTBA
DTSTART:20240411T190000Z
DTEND:20240411T201500Z
LAST-MODIFIED:20231204T183100Z
LOCATION:*Princeton University\, Fine Hall 224*
SUMMARY:Number Theory Learning Seminar
URL:https://www.ias.edu/events/number-theory-learning-seminar-12
END:VEVENT
BEGIN:VEVENT
UID:33323165-3365-4234-b861-316663323837
DTSTAMP:20231205T044450Z
CREATED:20231204T183448Z
DESCRIPTION:Topic: TBD\n\nTBA
DTSTART:20240411T203000Z
DTEND:20240411T213000Z
LAST-MODIFIED:20231204T183505Z
LOCATION:*Princeton University\, Fine Hall 224*
SUMMARY:Joint PU/IAS Number Theory
URL:https://www.ias.edu/math/events/joint-puias-number-theory-31
END:VEVENT
BEGIN:VEVENT
UID:66623761-6262-4261-b062-356561656563
DTSTAMP:20231205T044450Z
CREATED:20231204T181757Z
DESCRIPTION:Topic: TBD\n\nTBA
DTSTART:20240411T203000Z
DTEND:20240411T213000Z
LAST-MODIFIED:20231204T181818Z
LOCATION:*Princeton University\, Fine 214*
SUMMARY:Joint PU/IAS Number Theory
URL:https://www.ias.edu/math/events/joint-puias-number-theory-23
END:VEVENT
BEGIN:VEVENT
UID:64383037-3466-4232-a666-626238613066
DTSTAMP:20231205T044450Z
CREATED:20231204T164757Z
DESCRIPTION:Topic: TBD\n\nTBA
DTSTART:20240418T190000Z
DTEND:20240418T201500Z
LAST-MODIFIED:20231204T182653Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Number Theory Learning Seminar
URL:https://www.ias.edu/events/number-theory-learning-seminar-6
END:VEVENT
BEGIN:VEVENT
UID:63643131-6136-4865-b539-323738336361
DTSTAMP:20231205T044450Z
CREATED:20231204T165404Z
DESCRIPTION:Topic: TBD\n\nTBA
DTSTART:20240418T203000Z
DTEND:20240418T213000Z
LAST-MODIFIED:20231204T165421Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Joint PU/IAS Number Theory
URL:https://www.ias.edu/math/events/joint-puias-number-theory-17
END:VEVENT
BEGIN:VEVENT
UID:39363538-3038-4664-b064-346236363634
DTSTAMP:20231205T044450Z
CREATED:20231204T183106Z
DESCRIPTION:Topic: TBD\n\nTBA
DTSTART:20240425T190000Z
DTEND:20240425T201500Z
LAST-MODIFIED:20231204T183122Z
LOCATION:*Princeton University\, Fine Hall 224*
SUMMARY:Number Theory Learning Seminar
URL:https://www.ias.edu/events/number-theory-learning-seminar-13
END:VEVENT
BEGIN:VEVENT
UID:63333534-3431-4032-b537-626666666237
DTSTAMP:20231205T044450Z
CREATED:20231204T181824Z
DESCRIPTION:Topic: TBD\n\nTBA
DTSTART:20240425T203000Z
DTEND:20240425T213000Z
LAST-MODIFIED:20231204T181841Z
LOCATION:*Princeton University\, Fine 214*
SUMMARY:Joint PU/IAS Number Theory
URL:https://www.ias.edu/math/events/joint-puias-number-theory-24
END:VEVENT
BEGIN:VEVENT
UID:62353861-3232-4636-a432-343761376561
DTSTAMP:20231205T044450Z
CREATED:20231204T183510Z
DESCRIPTION:Topic: TBD\n\nTBA
DTSTART:20240425T203000Z
DTEND:20240425T213000Z
LAST-MODIFIED:20231204T183531Z
LOCATION:*Princeton University\, Fine Hall 224*
SUMMARY:Joint PU/IAS Number Theory
URL:https://www.ias.edu/math/events/joint-puias-number-theory-32
END:VEVENT
BEGIN:VEVENT
UID:39363033-3439-4631-a133-323136356538
DTSTAMP:20231205T044450Z
CREATED:20231204T183126Z
DESCRIPTION:Topic: TBD\n\nTBA
DTSTART:20240502T190000Z
DTEND:20240502T201500Z
LAST-MODIFIED:20231204T183140Z
LOCATION:*Princeton University\, Fine Hall 224*
SUMMARY:Number Theory Learning Seminar
URL:https://www.ias.edu/events/number-theory-learning-seminar-14
END:VEVENT
BEGIN:VEVENT
UID:36313330-3138-4630-a231-306530366133
DTSTAMP:20231205T044450Z
CREATED:20231204T183536Z
DESCRIPTION:Topic: TBD\n\nTBA
DTSTART:20240502T203000Z
DTEND:20240502T213000Z
LAST-MODIFIED:20231204T183551Z
LOCATION:*Princeton University\, Fine Hall 224*
SUMMARY:Joint PU/IAS Number Theory
URL:https://www.ias.edu/math/events/joint-puias-number-theory-33
END:VEVENT
BEGIN:VEVENT
UID:36393837-3734-4534-b538-633464386438
DTSTAMP:20231205T044450Z
CREATED:20231204T181847Z
DESCRIPTION:Topic: TBD\n\nTBA
DTSTART:20240502T203000Z
DTEND:20240502T213000Z
LAST-MODIFIED:20231204T181904Z
LOCATION:*Princeton University\, Fine 214*
SUMMARY:Joint PU/IAS Number Theory
URL:https://www.ias.edu/math/events/joint-puias-number-theory-25
END:VEVENT
BEGIN:VEVENT
UID:31346436-3338-4136-b837-656337303032
DTSTAMP:20231205T044450Z
CREATED:20231204T164816Z
DESCRIPTION:Topic: TBD\n\nTBA
DTSTART:20240509T190000Z
DTEND:20240509T201500Z
LAST-MODIFIED:20231204T182710Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Number Theory Learning Seminar
URL:https://www.ias.edu/events/number-theory-learning-seminar-7
END:VEVENT
BEGIN:VEVENT
UID:33666465-3038-4533-a130-333336613465
DTSTAMP:20231205T044450Z
CREATED:20231204T165425Z
DESCRIPTION:Topic: TBD\n\nTBA
DTSTART:20240509T203000Z
DTEND:20240509T213000Z
LAST-MODIFIED:20231204T165500Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Joint PU/IAS Number Theory
URL:https://www.ias.edu/math/events/joint-puias-number-theory-18
END:VEVENT
BEGIN:VEVENT
UID:38306533-3665-4139-b230-663639353164
DTSTAMP:20231205T044450Z
CREATED:20230804T153951Z
DESCRIPTION:Topic: Misattributions and Forgeries in Middle Eastern Manuscri
pt Traditions\n\nConverners: GRIGORY KESSEL\, (Institut für Mittelalterfor
schung\,\nÖsterreichische Akademie der Wissenschaften\, Vienna)\, GEORGE A
.\nKIRAZ (School of Historical Studies\, IAS) and SABINE\nSCHMIDTKE (Schoo
l of Historical Studies\, IAS).\n\nWorkshop to be held at the Österreichis
che Akademie der\nWissenschaften\, Vienna. Details to follow at a later ti
me.\n\n
DTSTART:20240516T130000Z
DTEND:20240517T210000Z
LAST-MODIFIED:20230804T154326Z
LOCATION:
SUMMARY:NES Workshop
URL:https://www.ias.edu/hs/events/nes-workshop-0
END:VEVENT
END:VCALENDAR