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X-WR-TIMEZONE:UTC
X-WR-CALNAME:IAS Academic
BEGIN:VEVENT
UID:33353065-3536-4938-b339-663961373261
DTSTAMP:20230604T064418Z
CREATED:20230207T182647Z
DESCRIPTION:SATURDAY MARCH 4\, 2023 – PRINCETON UNIVERSITY CAMPUS\n\n9:30-1
1:30\n\nSession 3: Technology and Environmental History\n\nChair: Harold J
ames (Princeton University). \n\n* ELIZABETH CHATTERJEE (UNIVERSITY OF CHI
CAGO). \n\n* MENG ZHANG (VANDERBILT UNIVERSITY). \n\n* PETRA MOSER (NEW YO
RK UNIVERSITY). \n\nDISCUSSANT: ANDREW NEEDHAM (NEW YORK UNIVERSITY/DAVIS
CENTER). \n\n \n11:30-12:30pm Lunch\n\n \n\n12:30-2:30PM\n\nSession 4: Sou
rces and Methods\n\nChair: Laura Edwards (Princeton University). \n\n* EMI
LY KLANCHER MERCHANT (UC-DAVIS). \n\n* ARNAUD ORAIN (UNIVERSITÉ PARIS VIII
). \n \n
\n \n* BEVERLY LEMIRE (ALBERTA UNI
VERSITY). \n\nCOMMENTATOR: SOPHUS REINERT (HARVARD UNIVERSITY-HBS). \n\n
\n\n2:45PM-4PM\n\nWrap up session introduced and moderated by JACOB SOLL (
UNIVERSITY OF\nSOUTHERN CALIFORNIA).
DTSTART:20230304T143000Z
DTEND:20230304T210000Z
LAST-MODIFIED:20230207T183210Z
LOCATION:
SUMMARY:New Directions in Economic History
URL:https://www.ias.edu/hs/events/new-directions-economic-history-0
END:VEVENT
BEGIN:VEVENT
UID:62346563-6239-4439-b863-323830396131
DTSTAMP:20230604T064418Z
CREATED:20230227T152944Z
DESCRIPTION:Topic: Degree Lowering Along Arithmetic Progressions\n\nSpeaker
s: Borys Kuca\n\nAffiliation: University of Crete\n\nEver since Furstenber
g proved his multiple recurrence theorem\, the\nlimiting behaviour of mult
iple ergodic averages along various\nsequences has been an important area
of investigation in ergodic\ntheory. In this talk\, I will discuss average
s along arithmetic\nprogressions in which the differences are elements of
a fixed integer\nsequence. Specifically\, I will give necessary and suffic
ient\nconditions under which averages of fixed length of the aforementione
d\nform have the same limit as averages along arithmetic progressions of\n
the same length. The result relies on a higher-order version of the\ndegre
e lowering argument\, which is of independent interest. The talk\nis based
on a joint work with Nikos Frantzikinakis.
DTSTART:20230306T143000Z
DTEND:20230306T153000Z
LAST-MODIFIED:20230306T151340Z
LOCATION:Simonyi 101
SUMMARY:Special Year Informal Seminar
URL:https://www.ias.edu/math/events/special-year-informal-seminar-4
END:VEVENT
BEGIN:VEVENT
UID:64636162-3830-4430-b730-376336333835
DTSTAMP:20230604T064418Z
CREATED:20230210T165325Z
DESCRIPTION:Topic: The Magellan Infrared Multi-object Spectrograph (MIRMOS)
\n\nSpeakers: Gwen Rudie\n\nAffiliation: Carnegie Observatories\n\nThe Mag
ellan Infrared Multi-object Spectrograph (MIRMOS) is a\nnext-generation ne
ar-infrared multi-object spectrograph and integral\nfield unit slated for
the Magellan 6.5m telescopes. MIRMOS is designed\nto address frontier scie
ntific questions in extragalactic\,\ncosmological\, and exoplanetary scien
ce including: (1) mapping the\ntopology of late reionization\, (2) delinea
ting the connection between\ngalaxies and the cosmic web\, (3) tracking ga
s flows in and out of\ngalaxies\, (4) characterizing sources discovered in
next-generation\nwide-area surveys and (5) surveying the molecular conten
t of exoplanet\natmospheres. MIRMOS will be the only MOS on a 6.5-10 m tel
escope to\nobserve the full NIR spectrum from 0.89-2.4 micron simultaneous
ly. The\nR~3700 spectrograph functions as both a multi-object spectrograph
and\na wide-field IFU. Designed as a wide-field\, ground-based complement
to\nJWST’s exquisite sensitivity\, MIRMOS’s wide FOV and unprecedented\ns
imultaneous wavelength coverage make it ~5x faster for galaxy surveys\ntha
n existing instruments. MIRMOS is currently in the preliminary\ndesign pha
se including the development and fabrication of the first\ncamera.
DTSTART:20230306T160000Z
DTEND:20230306T170000Z
LAST-MODIFIED:20230303T145114Z
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-62
END:VEVENT
BEGIN:VEVENT
UID:34623066-6633-4731-b965-313863313362
DTSTAMP:20230604T064418Z
CREATED:20221209T181630Z
DESCRIPTION:Topic: Two (More) Algorithms for Set Cover \n\nSpeakers: Anupam
Gupta\n\nAffiliation: Carnegie Mellon University\n\nIn the minimum cost s
et cover problem\, a set system is given as\ninput\, and the goal is to fi
nd a collection of sets with minimum cost\nwhose union covers the universe
. This NP-hard problem has long been\nknown to admit logarithmic approxima
tions. Moreover\, the logarithmic\nguarantee is tight\, unless P=NP. In th
is talk I will present two new\napproaches to get similar guarantees\, whi
ch arose from trying to get\nrefined guarantees for the problem in beyond-
worst-case settings. \n\nThe talk is based on joint works with Greg Kehne
(CMU and Harvard)\,\nEuiwoong Lee (U. Michigan)\, Roie Levin (CMU and Tel
Aviv U)\, and Jason\nLi (CMU and Simons/Berkeley).
DTSTART:20230306T161500Z
DTEND:20230306T171500Z
LAST-MODIFIED:20230321T143803Z
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-534
END:VEVENT
BEGIN:VEVENT
UID:36613632-6562-4434-b337-343433356137
DTSTAMP:20230604T064418Z
CREATED:20230210T165942Z
DESCRIPTION:Topic: General Discussion
DTSTART:20230306T170000Z
DTEND:20230306T180000Z
LAST-MODIFIED:20230303T135157Z
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-77
END:VEVENT
BEGIN:VEVENT
UID:65323261-6335-4735-b031-343031343033
DTSTAMP:20230604T064418Z
CREATED:20230303T135541Z
DESCRIPTION:Topic: Topic 1: Aemulus nu: hybrid effective field theory in a
w\nuCDM parameter space Topic 2: Model agnostic analysis of galaxy redshif
t surveys\n\nSpeakers: Joe DeRose and Licia Verde\n\nAffiliation: Lawrence
Berkeley National Laboratory and Institute of Cosmological Sciences (IC
C)\n\nAbstract 1: In this talk I'll give an overview of the Aemulus \nu\ns
imulations: a suite of 150 N-body simulations in a w\nuCDM parameter\nspac
e. These simulations take advantage of synergies between\nlagrangian pertu
rbation theory in order to mitigate a number of issues\nrelated to simulat
ion based forward modeling\, including discreteness\nerrors and sample var
iance due to finite simulation volumes. I'll also\ndiscuss the new hybrid
effective field theory emulator that we have\nbuilt from these simulations
\, which will be used in a number of\nupcoming analyses combining DESI clu
stering with galaxy and CMB\nlensing.\n\nAbstract 2: Precision cosmology o
ffers the promise of doing precision\ntests of fundamental physics with co
smological data. But standard\ncosmological analysis are basically paramet
er fitting done within a\nmodel chosen a priori. Can one test the model? W
hile fully model\nindependent analyses may not be viable\, I will present
a\nmodel-agnostic way to analyse galaxy redshift surveys. This opens up\nt
he possibility to perform map-based blind analyses of clustering and\nto t
est key aspects of the (standard) cosmological model.
DTSTART:20230306T173000Z
DTEND:20230306T190000Z
LAST-MODIFIED:20230303T135815Z
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-54
END:VEVENT
BEGIN:VEVENT
UID:35343765-6661-4330-a339-306433643330
DTSTAMP:20230604T064418Z
CREATED:20221114T181655Z
DESCRIPTION:Topic: Existence of Quasigeodesic Anosov Flows in Hyperbolic 3
-Manifolds\n\nSpeakers: Sergio Fenley\n\nAffiliation: Florida State Univer
sity\; Member\, School of Mathematics\n\nA quasigeodesic in a manifold is
a curve so that when lifted to the\nuniversal cover is uniformly efficient
up to a bounded multiplicative\nand added error in measuring length. A fl
ow is quasigeodesic if all\nflow lines are quasigeodesics. We prove that a
n Anosov flow in a\nclosed hyperbolic manifold is quasigeodesic if and onl
y if it is not\nR-covered. Here R-covered means that the stable 2-dim foli
ation of the\nflow\, lifts to a foliation in the universal cover whose lea
f space is\nhomeomorphic to the real numbers. There are many examples of\n
quasigeodesic Anosov flows in closed hyperbolic 3-manifolds. There are\nco
nsequences for the continuous extension property of Anosov\nfoliations\, a
nd the existence of group invariant Peano curves\nassociated with Anosov f
lows.
DTSTART:20230306T190000Z
DTEND:20230306T200000Z
LAST-MODIFIED:20230309T151340Z
LOCATION:Simonyi Hall 101 and Remote Access - see Zoom link below
SUMMARY:Members' Colloquium
URL:https://www.ias.edu/math/events/members-colloquium-46
END:VEVENT
BEGIN:VEVENT
UID:65666337-6439-4439-b336-613937626364
DTSTAMP:20230604T064418Z
CREATED:20230303T140411Z
DESCRIPTION:Topic: PFS Sky Subtraction\n\nSpeakers: Robert Lupton\n\nAffili
ation: Princeton University
DTSTART:20230306T200000Z
DTEND:20230306T210000Z
LAST-MODIFIED:20230303T140543Z
LOCATION:Zoom Broadmead 102
SUMMARY:Princeton University HSC+PFS+Rubin Discussions
URL:https://www.ias.edu/sns/events/princeton-university-hscpfsrubin-discuss
ions-4
END:VEVENT
BEGIN:VEVENT
UID:39363563-3762-4730-b132-323438333164
DTSTAMP:20230604T064418Z
CREATED:20221207T183711Z
DESCRIPTION:Topic: On Bennequin Type Inequality for Symplectic Caps of $(S^
3\, \xi_std)$.\n\nSpeakers: Anubhav Mukherjee\n\nAffiliation: Princeton Un
iversity\n\nIn this talk I will discuss a Bennequin type inequality for sy
mplectic\ncaps of $S^3$ with standard contact structure. This has interest
ing\napplications which can help us to understand the smooth topology of\n
symplectic caps and smoothly embedded suraces inside this. This is a\njoin
t work with Masaki Taniguchi and Nobuo Iida.
DTSTART:20230306T210000Z
DTEND:20230306T223000Z
LAST-MODIFIED:20230307T125612Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Joint IAS/Princeton University Symplectic Geometry Seminar
URL:https://www.ias.edu/math/events/joint-iasprinceton-university-symplecti
c-geometry-seminar-210
END:VEVENT
BEGIN:VEVENT
UID:31383737-3866-4839-b031-666131636638
DTSTAMP:20230604T064418Z
CREATED:20221206T175337Z
DESCRIPTION:Topic: p-adic analogue of Borel's theorem\n\nSpeakers: Ananth S
hankar\n\nAffiliation: University of Wisconsin-Madison - MSRI\n\nBorel pro
ved that any holomorphic map from an affine complex algebraic\ncurve to a
Shimura variety (with sufficient level structure) must be\nalgebraic. We w
ill discuss a p-adic analogue of this theorem. This is\njoint work with Ab
hishek Oswal and Xinwen Zhu\, with an appendix by\nAnand Patel
DTSTART:20230306T213000Z
DTEND:20230306T223000Z
LAST-MODIFIED:20230227T151813Z
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-1
END:VEVENT
BEGIN:VEVENT
UID:62613436-3237-4936-b236-613233356262
DTSTAMP:20230604T064418Z
CREATED:20221209T183341Z
DESCRIPTION:Topic: Recent Progress in Randomness Extraction\n\nSpeakers: Es
han Chattopadhyay\n\nAffiliation: Cornell University\n\nRandomness is a vi
tal resource in computation\, with many applications\nin areas such as cry
ptography\, data-structures and algorithm design\,\nsampling\, distributed
computing\, etc. However generating truly random\nbits is expensive\, and
most sources in nature produce correlated bits.\nA randomness extractor i
s informally defined to be an algorithm that\ncan purify such defective so
urces of randomness to output purely\nrandom bits.\n\nThe area of randomne
ss extraction has a long and rich history of\nstudying various models of d
efective sources\, and this line of\ninvestigation has uncovered various i
nteresting connections to\nmathematics as well as other areas within theo
retical computer\nscience. Recently\, this area has seen exciting progres
s on many\nlongstanding open problems\, which have also led to progress\no
n related questions in extremal combinatorics (such as explicit\nconstruct
ions of Ramsey graphs). In this talk\, I will survey these\nresults and th
e new techniques that have led to this progress. I will\nalso discuss open
questions that seem within reach.\n\nNo prior background in randomness ex
traction will be assumed for this\ntalk.
DTSTART:20230307T153000Z
DTEND:20230307T173000Z
LAST-MODIFIED:20230321T143833Z
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-528
END:VEVENT
BEGIN:VEVENT
UID:39363833-6537-4334-b838-316664393234
DTSTAMP:20230604T064418Z
CREATED:20230125T141453Z
DESCRIPTION:The Bahcall Lunch follows the astrophysics colloquium lecture.
DTSTART:20230307T173000Z
DTEND:20230307T183000Z
LAST-MODIFIED:20230125T141506Z
LOCATION:Gravity Initiative space\, 4th floor of Jadwin Hall\, Princeton U.
SUMMARY:Institute for Advanced Study / Princeton University Bahcall Lunch
URL:https://www.ias.edu/sns/events/institute-advanced-study-princeton-unive
rsity-bahcall-lunch-40
END:VEVENT
BEGIN:VEVENT
UID:61313436-6236-4362-b961-316139346362
DTSTAMP:20230604T064418Z
CREATED:20230123T160525Z
DESCRIPTION:Topic: Homogeneous Structures in Subset Sums and Non-averaging
Sets\n\nSpeakers: David Conlon\n\nAffiliation: Caltech\n\nWe show that for
every positive integer k there are positive constants\nC and c such that
if A is a subset of {1\, 2\, ...\, n} of size at least\nC n^{1/k}\, then\,
for some d \leq k-1\, the set of subset sums of A\ncontains a homogeneous
d-dimensional generalized arithmetic\nprogression of size at least c|A|^{
d+1}. This strengthens a result of\nSzemerédi and Vu\, who proved a simila
r statement without the\nhomogeneity condition. As an application\, we mak
e progress on the\nErdős-Straus non-averaging sets problem\, showing that
every subset A\nof {1\, 2\, ...\, n} of size at least n^{\sqrt{2} - 1 + o(
1)} contains an\nelement which is the average of two or more other element
s of A. This\ngives the first polynomial improvement on a result of Erdős
and\nSárközy from 1990.
DTSTART:20230307T190000Z
DTEND:20230307T200000Z
LAST-MODIFIED:20230315T180250Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Special Year Research Seminar
URL:https://www.ias.edu/math/events/special-year-research-seminar-14
END:VEVENT
BEGIN:VEVENT
UID:64396336-6431-4362-a533-373436313535
DTSTAMP:20230604T064418Z
CREATED:20230202T191911Z
DESCRIPTION:
DTSTART:20230307T200000Z
DTEND:20230307T220000Z
LAST-MODIFIED:20230309T151512Z
LOCATION:Rubenstein Commons | Meeting Room 5
SUMMARY:Reading Seminar on Perelman's Stability Theorem
URL:https://www.ias.edu/math/events/reading-seminar-perelmans-stability-the
orem-0
END:VEVENT
BEGIN:VEVENT
UID:30613866-3362-4431-a461-396263356232
DTSTAMP:20230604T064418Z
CREATED:20230210T171100Z
DESCRIPTION:Topic: We will discuss 2 important techniques for parallel comp
uting\, namely the Hilbert space filling curve and the HDF5 library.\n\nSp
eakers: Romain Teyssier and Jens Mahlmann \n\nAffiliation: Princeton Unive
rsity
DTSTART:20230307T200000Z
DTEND:20230307T210000Z
LAST-MODIFIED:20230303T142619Z
LOCATION:Peyton Hall\, Grand Central
SUMMARY:Princeton University Computational Astrophysics Club
URL:https://www.ias.edu/sns/events/princeton-university-computational-astro
physics-club-9
END:VEVENT
BEGIN:VEVENT
UID:37363437-3330-4830-b138-633331303466
DTSTAMP:20230604T064418Z
CREATED:20230302T144757Z
DESCRIPTION:Topic: Some Inverse Theorems in Ergodic Theory and Additive Com
binatorics\n\nSpeakers: Or Shalom\n\nAffiliation: Member\, School of Mathe
matics\n\nThe Gowers uniformity k-norm on a finite abelian group measures
the\naverages of complex functions on such groups over k-dimensional\narit
hmetic cubes. The inverse question about these norms asks if a\nlarge norm
implies correlation with a function of an algebraic origin.\nThe analogue
of the Gowers uniformity norms for measure-preserving\nabelian actions ar
e the Host-Kra-Gowers seminorms which are intimately\nconnected to the Hos
t-Kra-Ziegler factors of such systems. The\ncorresponding inverse question
in the dynamical setting asks for a\ndescription of such factors in terms
of systems of an algebraic\norigin. In this talk\, we survey recent resul
ts about the inverse\nquestion in the dynamical and combinatorial settings
\, and in\nparticular how an answer in the former setting can imply one in
the\nlatter. This talk is based on joint works with Asgar Jamneshan and\n
Terence Tao.
DTSTART:20230307T203000Z
DTEND:20230307T213000Z
LAST-MODIFIED:20230315T180315Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Special Year Research Seminar
URL:https://www.ias.edu/math/events/special-year-research-seminar-17
END:VEVENT
BEGIN:VEVENT
UID:36346361-6632-4636-b937-326439396230
DTSTAMP:20230604T064418Z
CREATED:20221116T192846Z
DESCRIPTION:Topic: The adjoint Brascamp-Lieb inequality\n\nSpeakers: Terenc
e Tao\n\nAffiliation: University of California\, Los Angeles\n\nThe Brasca
mp-Lieb inequality is a fundamental inequality in analysis\,\ngeneralizing
more classical inequalities such as Holder's inequality\,\nthe Loomis-Whi
tney inequality\, and Young's convolution inequality: it\ncontrols the siz
e of a product of pullbacks of low-dimensional\nfunctions to a common high
-dimensional space by the size of the\nindividual functions. One can take
an 'adjoint' of this inequality\,\nand control the size of a high-dimensio
nal function by the size of\nvarious marginals. This adjoint is equivalent
to an entropy inequality\nof Carlen and Cordero-Erasquin\, and implies a
Holder inequality for\nthe Gowers uniformity norms of non-negative functio
ns that had only\npreviously been known in special cases. The best constan
t for this\nadjoint inequality however differs slightly from that of the o
riginal\nBrascamp-Lieb inequality. These results arise from joint work in
\nprogress with Jonathan Bennett.
DTSTART:20230308T200000Z
DTEND:20230308T210000Z
LAST-MODIFIED:20230411T144218Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Analysis and Mathematical Physics
URL:https://www.ias.edu/math/events/analysis-and-mathematical-physics-6
END:VEVENT
BEGIN:VEVENT
UID:32623031-3235-4335-b766-636531363739
DTSTAMP:20230604T064418Z
CREATED:20230119T220441Z
DESCRIPTION:Topic: From P vs NP to P vs NSA: A Crash Course in Cryptography
\n\nSpeakers: Or Zamir\n\nAffiliation: Visitor\, School of Mathematics \n
\nIn theoretical computer science\, we often aim to prove lower bounds\nan
d demonstrate the computational hardness of solving certain\nproblems. How
ever\, some of these 'negative' results can be directly\napplied to crypto
graphy\, to base the security of protocols.\nIn this talk\, we will introd
uce the fundamental building blocks of\ncryptography\, such as encryption\
, key exchange\, and digital\nsignatures. We will explain how these techni
ques are used to secure\nonline transactions and communications\, and how
their security relies\non the computational hardness of certain problems.
\nFinally\, we will mention recent results about the security concerns\nth
at arise when cryptography is used in the context of machine\nlearning mod
els. We will show how malicious entities can use\ncryptography to create u
ndetectable\, untrustworthy models.
DTSTART:20230308T230000Z
DTEND:20230309T010000Z
LAST-MODIFIED:20230302T190414Z
LOCATION:Rubenstein Commons | Meeting Room 5
SUMMARY:Mathematical Conversations
URL:https://www.ias.edu/math/events/mathematical-conversations-254
END:VEVENT
BEGIN:VEVENT
UID:36383232-3930-4639-b831-656633626365
DTSTAMP:20230604T064418Z
CREATED:20221114T204117Z
DESCRIPTION:Topic: Structure and Randomness in the Pro-Nilpotent Tower of N
umber Fields\n\nSpeakers: Carlo Pagano\n\nAffiliation: Concordia Universit
y\n\n_I will talk about a program aimed at exploiting randomness of certai
n\n'graphs of symbols' in determining the precise structure of the\npro-ni
lpotent Galois groups of number fields\, and how this has been\nsuccessful
ly implemented in nilpotency class 2. I will overview how\nsome recent pro
gresses in arithmetic statistics informs us of the\ndifficulties in extend
ing this\, starting from nilpotency class 4\nonward. Finally\, I will expl
ain the strong ties that this problem\nhas with two variants of the inver
se Galois problem\, namely the\nminimal ramification problem and Malle's c
onjecture: I will present\nsome recent progress on the latter in the nilpo
tent case. This is\nbased on joint works with Peter Koymans._
DTSTART:20230309T213000Z
DTEND:20230309T223000Z
LAST-MODIFIED:20230314T121506Z
LOCATION:Princeton University\, Fine Hall 214
SUMMARY:Joint IAS/PU Number Theory Seminar
URL:https://www.ias.edu/math/events/joint-iaspu-number-theory-seminar-15
END:VEVENT
BEGIN:VEVENT
UID:36623865-3061-4736-a431-653033633764
DTSTAMP:20230604T064418Z
CREATED:20221116T194437Z
DESCRIPTION:Topic: Conformal blocks of Liouville conformal field theory \n
\nSpeakers: Colin Guillarmou\, Rémi Rhodes\n\nAffiliation: Université d'Or
say\; Institut de Mathématiques de Marseille\n\nLiouville conformal field
theory is a CFT with central charge c>25 and\ncontinuous spectrum\, its co
rrelation functions on Riemann surfaces\nwith marked points can be express
ed using the bootstrap method in\nterms of conformal blocks. We will expla
in how the conformal blocks\nappear from the probabilistic construction\,
and their link with the\nWard identity\, using certain Markovian semigroup
s.
DTSTART:20230310T151500Z
DTEND:20230310T171500Z
LAST-MODIFIED:20230411T144319Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Probability Seminar
URL:https://www.ias.edu/math/events/probability-seminar-20
END:VEVENT
BEGIN:VEVENT
UID:62306133-3232-4463-b261-303238643666
DTSTAMP:20230604T064418Z
CREATED:20230224T191454Z
DESCRIPTION:Topic: Stellar Streams as Probes of Galactic Structure and Dark
Matter Halos\n\nSpeakers: Tomer Yavetz\n\nAffiliation: The Institute for
Advanced Study\n\nWhen a globular cluster or a dwarf galaxy is tidally dis
rupted due to\nits host galactic potential\, the unbound stars assemble in
to coherent\nfilamentary structures known as stellar streams. Given the or
dered\nnature of their dynamical formation mechanism\, streams are highly
\nsensitive to the structure and substructure of the underlying\npotential
in which they evolve. Nearly 100 such streams have been\nobserved in the
Milky Way\, and over the coming decade\, we expect to\ndetect thousands mo
re in nearby galaxies with the Roman Space\nTelescope\, the Euclid Mission
\, and the Rubin Observatory. In this\ntalk\, I will review the various ga
lactic characteristics that a\nstellar stream can probe\, including the sh
ape and mass of the galaxy\,\nthe evolution of the galactic potential\, no
n-axisymmetric components\nlike a galactic bar\, and the nature of dark ma
tter substructure. I\nwill show how these galactic characteristics can lea
d to similar\nmorphological manifestations\, and demonstrate methods that
can be used\nto break these degeneracies. Finally\, I will discuss how the
\nanticipated detection of streams in other galaxies provides both new\nop
portunities and new challenges for applying these techniques to\nstudy the
nature of dark matter halos.
DTSTART:20230310T160000Z
DTEND:20230310T170000Z
LAST-MODIFIED:20230303T154647Z
LOCATION:Bloomberg Lecture Hall
SUMMARY:Institute for Advanced Study Astrophysics Seminar
URL:https://www.ias.edu/sns/events/institute-advanced-study-astrophysics-se
minar-60
END:VEVENT
BEGIN:VEVENT
UID:63613061-3636-4730-b866-623963633234
DTSTAMP:20230604T064418Z
CREATED:20221219T160125Z
DESCRIPTION:Topic: A Taste for the Difficult and Abstruse: A Seventeenth-Ce
ntury Paris Librarian and His Orientalist Network\n\nSpeakers: Paul Babins
ki\n\nAffiliation: University of Copenhagen\n\nThe object of this lecture
series is to bring together scholars and\nlibrarians engaged with collecti
ons of correspondences and/or include\nrelated projects that use appropria
te digital tools to map and analyze\nsuch corpora. It is hosted by Sabine
Schmidtke (NES@IAS) and María\nMercedes Tuya (Digital Scholarship @IAS).
\n\nFor additional information on this event and the lecture\nseries visit
:\n https://albert.ias.edu/20.500.12111/8044.\n\n
DTSTART:20230310T170000Z
DTEND:20230310T180000Z
LAST-MODIFIED:20230420T174634Z
LOCATION:Zoom event
SUMMARY:Scholarly Correspondences Among Orientalists: A Series of Lectures
URL:https://www.ias.edu/hs/events/scholarly-correspondences-among-orientali
sts-series-lectures-3
END:VEVENT
BEGIN:VEVENT
UID:34656334-6439-4462-a434-393236336634
DTSTAMP:20230604T064418Z
CREATED:20230303T150505Z
DESCRIPTION:Topic: General Discussion
DTSTART:20230310T173000Z
DTEND:20230310T183000Z
LAST-MODIFIED:20230303T150527Z
LOCATION:Dome Room\, Peyton Hall or Zoom
SUMMARY:Princeton University Astroplasmas Seminar
URL:https://www.ias.edu/sns/events/princeton-university-astroplasmas-semina
r-40
END:VEVENT
BEGIN:VEVENT
UID:33353661-6333-4833-a663-666631313132
DTSTAMP:20230604T064418Z
CREATED:20221014T133456Z
DESCRIPTION:Topic: TBD
DTSTART:20230310T180000Z
DTEND:20230310T203000Z
LAST-MODIFIED:20230411T191416Z
LOCATION:Rubenstein Commons | Meeting Room 5
SUMMARY:Milnor Conjecture Learning Seminar
URL:https://www.ias.edu/math/events/milnor-conjecture-learning-seminar-10
END:VEVENT
BEGIN:VEVENT
UID:34353864-3932-4162-b736-313839386566
DTSTAMP:20230604T064418Z
CREATED:20230222T161152Z
DESCRIPTION:Topic: A Non-flag Arithmetic Regularity Lemma and Counting Lemm
a\n\nSpeakers: Daniel Altman\n\nAffiliation: University of Oxford\n\nWe wi
ll discuss a version of the Green--Tao arithmetic regularity\nlemma and co
unting lemma which works in the generality of all linear\nforms. In this t
alk we will focus on the qualitative and algebraic\naspects of the result.
DTSTART:20230310T183000Z
DTEND:20230310T193000Z
LAST-MODIFIED:20230310T202743Z
LOCATION:Simonyi 101
SUMMARY:Special Year Informal Seminar
URL:https://www.ias.edu/math/events/special-year-informal-seminar-3
END:VEVENT
BEGIN:VEVENT
UID:31333938-3663-4735-b032-643561346263
DTSTAMP:20230604T064418Z
CREATED:20230221T184417Z
DESCRIPTION:Speakers: Agustin Moreno\n\nFriends Talk with Agustin Moreno\,
School of Mathematics\n_The Three-Body Problem: A Chaotic Tale from Newton
to Symplectic\nGeometry and Space Exploration_ \nFriday\, March 10\n5:30
p.m. Reception | 6:00 p.m. Talk\nDilworth Room\, Simons Hall\n\nOne of the
most important events in science dates back to 1687\, when\nNewton publis
hed the _Philosophiæ Naturalis Principia Mathematica_.\nIn this masterpiec
e of human thought\, the famous second law of motion\nis laid out\, which
concretely and beautifully expresses\nthe relationship between the motion
of a classical particle and the\nforces exerted on it. This work contains
the solution to the two-body\nproblem\, concerning the motion of two massi
ve bodies under\ngravitational interaction. However\, when a third mass is
added\, known\nas the three-body problem\, there is no such concrete solu
tion\, as\nHenri Poincaré exhibited in 1892. Since then\, the role of\ncel
estial mechanics has been central to modern scientific discourse\,\nin vie
w of its connections with astronomy and space exploration.\nSymplectic geo
metry\, the geometry underlying William Rowan Hamilton's\nreformulation of
classical mechanics\, serves as the modern\nmathematical framework instru
mental to addressing these classical\nproblems. This talk will attempt to
thread together bits and pieces\nof this beautiful story\, from the (inevi
tably biased) viewpoint of a\nmodern practitioner. \n \nAgustin Moreno is
a Junior Professor in the Department of Mathematics\nat Heidelberg Univer
sity in Germany\, as well as a Member of the School\nof Mathematics at IAS
. He holds degrees from the University of\nCambridge\, where he completed
part III of the Mathematical Tripos with\ndistinction (and was awarded for
his distinguished performance)\, and\nfrom the Humboldt University in Ber
lin\, where he finished his\nPh.D. (started at University College London\,
UK). He has been\naffiliated with the Berlin Mathematical School\, and ha
s been a\nResearch Fellow at the Mittag-Leffler Institute in Sweden\, an\n
institution famously tied to the work of Poincaré on the three-body\nprobl
em\, where much of his work on the very same problem was carried\nout. His
research lies at the crossroads of geometry\, topology\,\ndynamics and ma
thematical physics\, with further interest in\napplications to space missi
on design\, which he pursues in\ncollaboration with navigational engineers
at NASA.
DTSTART:20230310T223000Z
DTEND:20230310T223000Z
LAST-MODIFIED:20230309T153423Z
LOCATION:Dilworth Room
SUMMARY:Friends Talk with Agustin Moreno\, School of Mathematics
URL:https://www.ias.edu/events/friends-talk-agustin-moreno-school-mathemati
cs
END:VEVENT
BEGIN:VEVENT
UID:33376166-6131-4564-b965-363332363531
DTSTAMP:20230604T064418Z
CREATED:20230313T151607Z
DESCRIPTION:Topic: Galaxy And Mass Assembly (GAMA): Bulge-disk decompositio
n of KiDS data in the nearby universe\n\nSpeakers: Sarah Casura\n\nAffilia
tion: University of Hamburg\n\nEach week\, we hold a relatively informal s
eminar/discussion series\nwith an emphasis on extra-galactic and large-sca
le structure\nastrophysics.\n\nDuring Galread a leader/visitor presents a
recent paper to the\ndiscussion group. The PDF of the paper is projected o
nto 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\npowerp
oint-style slides. Galread discussions are very friendly and\ninteractive.
DTSTART:20230313T150000Z
DTEND:20230313T160000Z
LAST-MODIFIED:20230313T151709Z
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-63
END:VEVENT
BEGIN:VEVENT
UID:62366132-3031-4933-b335-386232643565
DTSTAMP:20230604T064418Z
CREATED:20221209T181755Z
DESCRIPTION:Topic: Why Can’t We Classically Describe Quantum Systems?\n\nSp
eakers: Chinmay Nirkhe\n\nAffiliation: MIT-IBM Watson AI Lab\n\nA central
goal of physics is to understand the low-energy solutions of\nquantum inte
ractions between particles. This talk will focus on the\ncomplexity of _de
scribing_ low-energy solutions\; I will show that we\ncan construct quantu
m systems for which the low-energy solutions are\nhighly complex and unlik
ely to exhibit succinct classical\ndescriptions. I will discuss the implic
ations these results have for\nrobust entanglement at constant temperature
and the quantum PCP\nconjecture. En route\, I will discuss our positive r
esolution of the No\nLow-energy Trivial States (NLTS) conjecture on the ex
istence of robust\ncomplex entanglement.\n\nMathematically\, for an _n-_pa
rticle system\, the low-energy states are\nthe eigenvectors corresponding
to small eigenvalues of an\nexp(_n_)-sized matrix called the Hamiltonian\,
which describes the\ninteractions between the particles. Low-energy state
s are the quantum\ngeneralizations of approximate solutions to satisfiabil
ity problems\nsuch as 3-SAT. In this talk\, I will discuss the theoretical
computer\nscience techniques used to prove circuit lower bounds for all\n
low-energy states. This morally demonstrates the existence of\nHamiltonian
systems whose entire low-energy subspace is robustly\nentangled.
DTSTART:20230313T151500Z
DTEND:20230313T161500Z
LAST-MODIFIED:20230321T143900Z
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-535
END:VEVENT
BEGIN:VEVENT
UID:30633139-3937-4632-b633-353765643330
DTSTAMP:20230604T064418Z
CREATED:20230313T151836Z
DESCRIPTION:Topic: Self-Consistent Spin\, Tidal\, and Dynamical Equations o
f Motion in the REBOUND framework\n\nSpeakers: Tiger Lu\n\nAffiliation: Ya
le University\n\nThe point particle approximation is widely used in the st
udy of\nplanetary dynamics. While this zeroth order approximation is often
a\nvery good one\, in many cases of interest crucial aspects of the\ndyna
mics are lost if the effects of structure are not accounted for.\nThe equi
librium tide theory is a powerful dynamical prescription which\naccounts f
or the effects of structure: specifically\, it\nself-consistently accounts
for tidal interactions\, gravitational\npotential arising from deviation
from rotational deformation\, and both\nthe magnitude and direction of the
planet's rotation. In this talk I\ndescribe our integration of the equili
brium tide theory into the\npopular N-body simulator package REBOUND\, pro
viding a flexible and\nintuitive tool for the wider dynamics community. I
will discuss both\nour implementation of the code\, and benchmark its perf
ormance against\nanalytic predictions and independent results.
DTSTART:20230313T160000Z
DTEND:20230313T170000Z
LAST-MODIFIED:20230313T151923Z
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-78
END:VEVENT
BEGIN:VEVENT
UID:63346430-3430-4237-b634-636435663233
DTSTAMP:20230604T064418Z
CREATED:20221114T181830Z
DESCRIPTION:Topic: Almost all Collatz Orbits Attain Almost Bounded Values\n
\nSpeakers: Terence Tao\n\nAffiliation: University of California\, Los Ang
eles\; Member\, School of Mathematics\n\nDefine the Collatz map Col on the
natural numbers by setting Col(n) to\nequal 3n+1 when n is odd and n/2 wh
en n is even. The notorious Collatz\nconjecture asserts that all orbits of
this map eventually attain the\nvalue 1. This remains open\, even if one
is willing to work with almost\nall orbits rather than all orbits. We show
that almost all orbits n\,\nCol(n)\, Col^2(n)\, ... eventually attain a v
alue less than f(n)\, for\nany function f that goes to infinity (no matter
how slowly). A key\nstep is to obtain an approximately invariant (or more
precisely\,\nself-similar) measure for the (accelerated) Collatz dynamics
.
DTSTART:20230313T180000Z
DTEND:20230313T190000Z
LAST-MODIFIED:20230314T121357Z
LOCATION:Simonyi Hall 101 and Remote Access - see Zoom link below
SUMMARY:Members' Colloquium
URL:https://www.ias.edu/math/events/members-colloquium-47
END:VEVENT
BEGIN:VEVENT
UID:34346135-6366-4362-b633-326535343137
DTSTAMP:20230604T064418Z
CREATED:20221207T161122Z
DESCRIPTION:Topic: Mean Action and the Calabi Invariant\n\nSpeakers: Abror
Pirnapasov\n\nAffiliation: École Normale Supérieure de Lyon \n\nHutchings
used Embedded Contact Homology to show the following for\narea-preserving
disc diffeomorphisms that are a rotation near the\nboundary of the disc: i
f the asymptotic mean action on the boundary is\ngreater than the Calabi i
nvariant\, then the infimum of the mean action\nof the periodic points is
less than or equal to the Calabi invariant.\nI will explain how to extend
this result to any symplectic disc\ndiffeomorphisms. I will also introduce
a general result for\narea-preserving disc diffeomorphisms with only one
periodic point.\nThis is joint work with David Bechara\, Barney Bramham\,
and Patrice Le\nCalvez.
DTSTART:20230313T200000Z
DTEND:20230313T213000Z
LAST-MODIFIED:20230309T153348Z
LOCATION:Fine 314 and Remote Access
SUMMARY:Joint IAS/Princeton University Symplectic Geometry Seminar
URL:https://www.ias.edu/math/events/joint-iasprinceton-university-symplecti
c-geometry-seminar-205
END:VEVENT
BEGIN:VEVENT
UID:30646637-3363-4530-b935-656365643564
DTSTAMP:20230604T064418Z
CREATED:20221116T182140Z
DESCRIPTION:Topic: The Riemann-Hilbert Correspondence in Nonarchimedean Geo
metry\n\nSpeakers: Jacob Lurie\n\nAffiliation: School of Mathematics\n\nLe
t X be a smooth projective variety over the field of complex\nnumbers. The
classical Riemann-Hilbert correspondence supplies a fully\nfaithful embed
ding from the category of perverse sheaves on X to the\ncategory of algebr
aic D_X-modules. In this talk\, I'll describe joint\nwork with Bhargav Bha
tt on an analogous construction in the setting of\nnon-archimedean geometr
y.
DTSTART:20230313T203000Z
DTEND:20230313T213000Z
LAST-MODIFIED:20230411T191458Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:IAS/Princeton Arithmetic Geometry Seminar
URL:https://www.ias.edu/math/events/iasprinceton-arithmetic-geometry-semina
r-1
END:VEVENT
BEGIN:VEVENT
UID:63653663-3335-4237-b437-633761366462
DTSTAMP:20230604T064418Z
CREATED:20230222T161435Z
DESCRIPTION:Topic: Geometric Representation of Structured Extensions in Erg
odic Theory\n\nSpeakers: Henrik Kreidler\n\nAffiliation: Bergische Univers
ität Wuppertal\n\nThe Mackey-Zimmer representation theorem is a key struct
ural result\nfrom ergodic theory: Every compact extension between ergodic
\nmeasure-preserving systems can be written as a skew-product by a\nhomoge
neous space of a compact group. This is used\, e.g.\, in\nFurstenberg's or
iginal ergodic theoretic proof of Szemerédi's\ntheorem\, as well as in the
classical proofs of the Host-Kra-Ziegler\nstructure theorem for character
istic factors. Inspired by earlier work\nof Ellis\, we discuss a topologic
al approach\, first to the original\ntheorem\, and then to a generalizatio
n relaxing the ergodicity\nassumptions due to Austin. The talk is based on
joint work with\nNikolai Edeko and Asgar Jamneshan.
DTSTART:20230314T180000Z
DTEND:20230314T190000Z
LAST-MODIFIED:20230418T142717Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Special Year Research Seminar
URL:https://www.ias.edu/math/events/special-year-research-seminar-21
END:VEVENT
BEGIN:VEVENT
UID:34393235-3733-4539-b030-646461323461
DTSTAMP:20230604T064418Z
CREATED:20230303T142939Z
DESCRIPTION:Topic: Unfolding the Infrared Universe with the James Webb Spac
e Telescope\n\nSpeakers: Joseph DePasquale\n\nAffiliation: Space Telescope
Science Institute\n\nThe universe is filled with beauty beyond even our w
ildest\nimaginations. Sophisticated observatories such as the James Webb S
pace\nTelescope help us peer into that sublime reality\, and it is to the
\ngreat fortune of humanity that these instruments of science produce\ndat
a that captures the essence of the natural beauty of the cosmos.\n\nHoweve
r\, without a careful eye toward revealing that beauty\, the data\nwould r
emain black and white snapshots for scientific analysis rather\nthan admir
ation. Astronomical image processors blend the artistic\nvisual principles
of composition\, color and tonality with the\nscientific knowledge of how
these observatories operate and the\nobjects they study to compose images
that capture the imagination and\ninspire the viewer to learn more about
our universe.\n\nThis past January\, Joe’s colleague Alyssa Pagan gave us
a\nfascinating overview of the tools and processes for turning JWST raw\nd
ata into the jaw-dropping visuals we see in the media. In this talk\,\nSen
ior Science Visuals Developer Joseph DePasquale will focus on\nexciting ne
w results from the James Webb Space Telescope\, providing\nsome background
on the observatory itself as well as the art and\nscience of the image pr
ocessing that reveals the inherent beauty of\nthe infrared universe.
DTSTART:20230314T233000Z
DTEND:20230315T013000Z
LAST-MODIFIED:20230313T152536Z
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-18
END:VEVENT
BEGIN:VEVENT
UID:64353234-3332-4539-b961-326363613437
DTSTAMP:20230604T064418Z
CREATED:20221116T193159Z
DESCRIPTION:Topic: TBD
DTSTART:20230315T190000Z
DTEND:20230315T200000Z
LAST-MODIFIED:20230411T153123Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Analysis and Mathematical Physics
URL:https://www.ias.edu/math/events/analysis-and-mathematical-physics-9
END:VEVENT
BEGIN:VEVENT
UID:35373734-3461-4139-a132-393566323932
DTSTAMP:20230604T064418Z
CREATED:20230224T192027Z
DESCRIPTION:Topic: Processes of Stellar Destruction in Galactic Nuclei and
Quasi-Periodic X-Ray Eruptions\n\nSpeakers: Itai Linial\n\nAffiliation: Th
e Institute for Advanced Study\n\nCenters of galaxies are fertile environm
ents for a variety of\ndynamical processes\, owing to the high density of
stars and the\npresence of a central supermassive black hole. Stars may oc
casionally\nbe deflected onto a deadly trajectory\, passing too close to t
he\ncentral black hole where they are being tidally disrupted\, or they ma
y\ngently inspiral towards the black hole due to the emission of\ngravitat
ional waves\, until they fill their Roche lobe and shed mass\ntowards the
supermassive black hole\, forming a “stellar extreme\nmass-ratio inspiral
(EMRI)”. I will review these processes and\ndiscuss a possible connection
between stellar EMRIs and a recently\ndiscovered class of transient X-ray
events\, known as Quasi-Periodic\nEruptions (QPEs) associated with galacti
c nuclei. I will conclude by\ndiscussing the predictions of our model and
the association between\nQPEs and other nuclear transients\, and comment o
n their prospects as\nmulti-messenger targets in the era of space-based GW
detectors\, and\nall-sky X-ray surveys.
DTSTART:20230316T150000Z
DTEND:20230316T160000Z
LAST-MODIFIED:20230313T151400Z
LOCATION:Bloomberg Lecture Hall
SUMMARY:Institute for Advanced Study Astrophysics Seminar
URL:https://www.ias.edu/sns/events/institute-advanced-study-astrophysics-se
minar-63
END:VEVENT
BEGIN:VEVENT
UID:30653431-6663-4336-b361-323666613138
DTSTAMP:20230604T064418Z
CREATED:20230310T134447Z
DESCRIPTION:Topic: Canonical Metrics in Kähler Geometry\n\nSpeakers: Xi Si
si Shen\n\nAffiliation: Columbia University\n\nIn this talk\, we will disc
uss the existence problem of extremal\nmetrics on a Kähler manifold. The b
est known examples of these are\nKähler-Einstein and constant scalar curva
ture Kähler (cscK) metrics.\nYau's resolution of the Calabi conjecture pro
ves existence of\nKähler-Einstein metrics on manifolds with vanishing firs
t Chern\nclass. Recently\, through the work of Chen-Cheng\, cscK metrics c
an be\nshown to exist under certain stability conditions. The focus of thi
s\ntalk will be an overview of the analytic methods used in both of these
\nproofs.
DTSTART:20230316T170000Z
DTEND:20230316T180000Z
LAST-MODIFIED:20230310T140425Z
LOCATION:Simonyi Hall
SUMMARY:What Is .... ?
URL:https://www.ias.edu/math/events/what-4
END:VEVENT
BEGIN:VEVENT
UID:37633964-6334-4061-a637-646266653037
DTSTAMP:20230604T064418Z
CREATED:20221205T204351Z
DESCRIPTION:Topic: Heaviness and Relative Symplectic Cohomology\n\nSpeakers
: Yuhan Sun\n\nAffiliation: Rutgers University\n\nFor a compact subset $K$
of a closed symplectic manifold\,\nEntov-Polterovich introduced the notio
n of (super)heaviness\, which\nreveals surprising symplectic rigidity. Whe
n $K$ is a Lagrangian\nsubmanifold\, there is a well-established criterion
for its heaviness\,\nby using closed-open maps. We will discuss an equiva
lence between the\nheaviness and the non-vanishing of the relative symplec
tic cohomology\,\nfor a general compact set $K$. Joint with C.Y.Mak and U.
Varolgunes.
DTSTART:20230317T131500Z
DTEND:20230317T144500Z
LAST-MODIFIED:20230317T144828Z
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-112
END:VEVENT
BEGIN:VEVENT
UID:61656234-3231-4365-a165-343732386661
DTSTAMP:20230604T064418Z
CREATED:20230310T160818Z
DESCRIPTION:Topic: Bisectors in random plane geometry\n\nSpeakers: Bálint V
irág\n\nAffiliation: University of Toronto\n\nIn Euclidean geometry\, bise
ctors are perpendicular lines. In random\nplane geometry\, the situation i
s more complicated. I will describe\nbisectors in the directed landscape\,
the universal geometry in the KPZ\nclass. These help answer some open que
stions in particle systems.
DTSTART:20230317T141500Z
DTEND:20230318T031500Z
LAST-MODIFIED:20230411T153217Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Probability Seminar
URL:https://www.ias.edu/math/events/probability-seminar-27
END:VEVENT
BEGIN:VEVENT
UID:33386462-3437-4134-b061-326334396436
DTSTAMP:20230604T064418Z
CREATED:20221116T194516Z
DESCRIPTION:Topic: The Fyodorov-Hiary-Keating conjecture\n\nSpeakers: Paul
Bourgade\n\nAffiliation: New York University\n\nThrough the random matrix
analogy\, Fyodorov\, Hiary and Keating\nconjectured very precisely the typ
ical values of the Riemann zeta\nfunction in short intervals of the critic
al line\, in particular their\nmaximum. Their prediction relied on techniq
ues from statistical\nmechanics such as the freezing scenario. Recent rigo
rous progress has\nexploited underlying branching structures instead\, bot
h for random\ncharacteristic polynomials and L-functions. I will explain t
hese\ndevelopments\, in particular joint work with Arguin and Radziwill.
DTSTART:20230317T151500Z
DTEND:20230317T161500Z
LAST-MODIFIED:20230411T153256Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Probability Seminar
URL:https://www.ias.edu/math/events/probability-seminar-21
END:VEVENT
BEGIN:VEVENT
UID:32636239-3230-4139-b539-333532633135
DTSTAMP:20230604T064418Z
CREATED:20221219T160434Z
DESCRIPTION:Topic: The Life of Max Meyerhof through his correspondence\n\nS
peakers: Isolde Lehnert\n\nAffiliation: Deutsches Archäologisches Institut
Kairo (DAIK)\n\nThe object of this lecture series is to bring together sc
holars and\nlibrarians engaged with collections of correspondences and/or
include\nrelated projects that use appropriate digital tools to map and an
alyze\nsuch corpora. It is hosted by Sabine Schmidtke (NES@IAS) and María
\nMercedes Tuya (Digital Scholarship @IAS). \n\nFor additional information
on this event and the lecture\nseries visit:\n https://albert.ias.edu/20.
500.12111/8044.\n\n
DTSTART:20230317T160000Z
DTEND:20230317T170000Z
LAST-MODIFIED:20230420T174601Z
LOCATION:Zoom event
SUMMARY:Scholarly Correspondences Among Orientalists: A Series of Lectures
URL:https://www.ias.edu/hs/events/scholarly-correspondences-among-orientali
sts-series-lectures-4
END:VEVENT
BEGIN:VEVENT
UID:30383964-6436-4135-a636-373239623364
DTSTAMP:20230604T064418Z
CREATED:20230303T150703Z
DESCRIPTION:Topic: General Discussion
DTSTART:20230317T163000Z
DTEND:20230317T173000Z
LAST-MODIFIED:20230313T153946Z
LOCATION:Dome Room\, Peyton Hall or Zoom
SUMMARY:Princeton University Astroplasmas Seminar
URL:https://www.ias.edu/sns/events/princeton-university-astroplasmas-semina
r-41
END:VEVENT
BEGIN:VEVENT
UID:63653664-3434-4339-b032-646462326162
DTSTAMP:20230604T064418Z
CREATED:20221014T133527Z
DESCRIPTION:Topic: TBD
DTSTART:20230317T170000Z
DTEND:20230317T193000Z
LAST-MODIFIED:20230411T191547Z
LOCATION:West Bldg. Lecture Hall
SUMMARY:Milnor Conjecture Learning Seminar
URL:https://www.ias.edu/math/events/milnor-conjecture-learning-seminar-9
END:VEVENT
BEGIN:VEVENT
UID:36303036-3430-4663-b664-656163633164
DTSTAMP:20230604T064418Z
CREATED:20230310T184529Z
DESCRIPTION:Topic: Strong Bounds for 3-Progressions\n\nSpeakers: Raghu Meka
\, Zander Kelley\n\nAffiliation: University of California\, Los Angeles\;
University of Illinois Urbana-Champaign\n\nSuppose you have a set _S_ of i
ntegers from _{1 \, 2 \, … \,\nN}_ that contains at least _N / C_ elements
. Then for large\nenough _N_ \, must _S_ contain three equally spaced numb
ers (i.e.\,\na 3-term arithmetic progression)?\n\nIn 1953\, Roth showed th
at this is indeed the case when _C ≈ (log\n____ log ____ N)_\, while Beh
rend in 1946 showed that _C_ can\nbe at most _2 Ω(√log ____N__)_. Since t
hen\, the problem has\nbeen a cornerstone of the area of additive combinat
orics. Following a\nseries of remarkable results\, a celebrated paper from
2020 due to\nBloom and Sisask improved the lower bound on _C_ to _C = (lo
g\nN) (1 + c)_\, for some constant _c > 0_.\n\nThis talk will describe a n
ew work showing that the same holds\nwhen _C ≈ 2(log ____ N)0.09_\, thus
getting closer to Behrend's\nconstruction.\n\nBased on joint work with Zan
der Kelley.
DTSTART:20230320T140000Z
DTEND:20230320T150000Z
LAST-MODIFIED:20230322T172233Z
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-544
END:VEVENT
BEGIN:VEVENT
UID:64346139-6136-4932-b532-386262346430
DTSTAMP:20230604T064418Z
CREATED:20230313T154424Z
DESCRIPTION:Topic: TBA\n\nEach week\, we hold a relatively informal seminar
/discussion series\nwith an emphasis on extra-galactic and large-scale str
ucture\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 g
reater\ndetail than may be explained within the text of the article. To ai
d\nwith discussion\, only the article PDF is presented -- no\npowerpoint-s
tyle slides. Galread discussions are very friendly and\ninteractive.
DTSTART:20230320T150000Z
DTEND:20230320T160000Z
LAST-MODIFIED:20230313T154444Z
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-64
END:VEVENT
BEGIN:VEVENT
UID:66303639-6638-4763-a138-313837343639
DTSTAMP:20230604T064418Z
CREATED:20221209T181839Z
DESCRIPTION:Topic: Extremal Problems for Uniformly Dense Hypergraphs\n\nSpe
akers: Mathias Schacht\n\nAffiliation: Universität Hamburg\n\nExtremal com
binatorics is a central research area in discrete\nmathematics. The field
can be traced back to the work of Turán and it\nwas established by Erdős t
hrough his fundamental contributions and\nhis uncounted guiding questions.
Since then it has grown into an\nimportant discipline with strong ties to
other mathematical areas such\nas theoretical computer science\, number t
heory\, and ergodic theory.\n\nWe focus on extremal problems for hypergrap
hs\, which were introduced\nby Turán. After solving the analogous question
for graphs\, Turán\nasked to determine the maximum cardinality of a set E
of 3-element\nsubsets of a given n-element set V such that for any 4 elem
ents of V\nat least one triple is missing in E. This innocent looking prob
lem is\nstill open and despite a great deal of effort over the last 80 yea
rs\nand our knowledge is still somewhat limited. We consider a variant\no
f the problem by imposing additional restrictions on the distribution\nof
the 3-element subsets in E. These additional assumptions yield a\nfiner co
ntrol over the corresponding extremal problem. In fact\, this\nleads to ma
ny interesting and more manageable subproblems\, some of\nwhich were alrea
dy considered by Erdős and Sós in the 1980ies. The\nadditional assumptions
on the distribution of the 3-element subsets\nare closely related to the
theory of quasirandom discrete structures\,\nwhich was pioneered by Szemer
édi and became a central theme in the\nfield. In fact\, the hypergraph ext
ensions by Gowers and by Rödl et\nal. of the regularity lemma provide esse
ntial tools for this line of\nresearch.
DTSTART:20230320T151500Z
DTEND:20230320T161500Z
LAST-MODIFIED:20230322T172207Z
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-536
END:VEVENT
BEGIN:VEVENT
UID:37316466-3938-4663-b137-626336343764
DTSTAMP:20230604T064418Z
CREATED:20221114T181914Z
DESCRIPTION:Topic: Recent Results on Finite Group Lattice Gauge Theories\n
\nSpeakers: Sky Yang Cao\n\nAffiliation: Member\, School of Mathematics\n
\nThe rigorous study of spin systems such as the Ising model is\ncurrently
one of the most active research areas in probability theory.\nIn this tal
k\, I will introduce one particular class of such models\,\nknown as latti
ce gauge theories (LGTs)\, and go over its origins\,\nmotivations\, and th
en some recent results. Along the way\, I will also\ntry to highlight some
of the key differences between LGTs and the\nusual spin systems. The gene
ral theme is that LGTs are spin systems\nwith topological considerations.
DTSTART:20230320T180000Z
DTEND:20230320T190000Z
LAST-MODIFIED:20230324T142428Z
LOCATION:Simonyi Hall 101 and Remote Access - see Zoom link below
SUMMARY:Members' Colloquium
URL:https://www.ias.edu/math/events/members-colloquium-48
END:VEVENT
BEGIN:VEVENT
UID:31316334-6233-4137-b133-663933356133
DTSTAMP:20230604T064418Z
CREATED:20230303T140641Z
DESCRIPTION:Topic: TBA
DTSTART:20230320T190000Z
DTEND:20230320T200000Z
LAST-MODIFIED:20230303T140659Z
LOCATION:Zoom and Peyton 025
SUMMARY:Princeton University HSC+PFS+Rubin Discussions
URL:https://www.ias.edu/sns/events/princeton-university-hscpfsrubin-discuss
ions-5
END:VEVENT
BEGIN:VEVENT
UID:65303734-3265-4333-b839-306263323632
DTSTAMP:20230604T064418Z
CREATED:20221207T184119Z
DESCRIPTION:Topic: Dynamics of Seifert Surfaces of Torus Knots Via ECH\n\nS
peakers: Morgan Weiler\n\nAffiliation: Cornell University\n\nEmbedded cont
act homology (ECH) is a diffeomorphism invariant of\nthree-manifolds due t
o Hutchings\, defined using a contact form. This\nvery diffeomorphism inva
riance makes it quite useful when studying\ncontact dynamics\, because it
is possible to apply calculations using\nsimpler contact forms to situatio
ns involving more complex ones. We\nwill outline how a knot filtration on
ECH was used in a 2015 paper of\nHutchings to identify low mean action per
iodic orbits of disk maps\, as\nwell as several more recent generalization
s due to other authors. We\nwill then explain the correspondence between t
he existence of an\naction function and the construction of a contact thre
e-manifold (via\na mapping torus) when starting with a specific surface\ns
ymplectomorphism. Finally\, we will mention how the ECH computations\nchan
ge by analyzing the case of T(2\,3) and its genus one Seifert\nsurface. Ba
sed on work in progress with Jo Nelson. Note: The material\ndiscussed in t
his talk will differ from that of Jo Nelson's February\n27 talk. However\,
enough background will be given to make this talk\nself-contained.
DTSTART:20230320T200000Z
DTEND:20230320T213000Z
LAST-MODIFIED:20230320T231211Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Joint IAS/Princeton University Symplectic Geometry Seminar
URL:https://www.ias.edu/math/events/joint-iasprinceton-university-symplecti
c-geometry-seminar-211
END:VEVENT
BEGIN:VEVENT
UID:36383030-3730-4330-b166-313036383361
DTSTAMP:20230604T064418Z
CREATED:20221206T175429Z
DESCRIPTION:Speakers: Yunqing Tang\n\nAffiliation: University of California
\, Berkeley
DTSTART:20230320T203000Z
DTEND:20230320T213000Z
LAST-MODIFIED:20230215T183824Z
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-2
END:VEVENT
BEGIN:VEVENT
UID:34396234-6430-4166-b934-383536333435
DTSTAMP:20230604T064418Z
CREATED:20221209T183442Z
DESCRIPTION:Topic: Strong Bounds for 3-Progressions: In-Depth\n\nSpeakers:
Raghu Meka\, Zander Kelley\n\nAffiliation: University of California\, Los
Angeles\; University of Illinois Urbana-Champaign\n\nSuppose you have a se
t A of integers from {1\, 2\, …\, N} that contains\nat least N / C element
s. Then for large enough N\, must A contain\nthree equally spaced numbers
(i.e.\, a 3-term arithmetic\nprogression)? \n\nIn 1953\, Roth showed that
this is indeed the case when C ≈ log \nlog N\, while Behrend in 1946 s
howed that C can be at most\n2^√log(N) by giving an explicit construction
of a large set with no\n3-term progressions. Since then\, the problem has
been a cornerstone\nof the area of additive combinatorics. Following a s
eries of\nremarkable results\, a celebrated paper from 2020 due to Bloom a
nd\nSisask improved the lower bound on C to C = (log N)^(1 + c)\, for some
\nconstant c > 0.\n\nIn a recent new work with Raghu Meka\, it was shown t
hat the same holds\nwhen C ≈ 2^(log N)^(0.09)\, thus getting closer to B
ehrend's\nconstruction. In this talk we give an in-depth look at the proo
f.
DTSTART:20230321T143000Z
DTEND:20230321T163000Z
LAST-MODIFIED:20230322T172139Z
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-530
END:VEVENT
BEGIN:VEVENT
UID:35326466-3934-4637-b938-306562353264
DTSTAMP:20230604T064418Z
CREATED:20230125T141513Z
DESCRIPTION:The Bahcall Lunch follows the astrophysics colloquium lecture.
DTSTART:20230321T163000Z
DTEND:20230321T173000Z
LAST-MODIFIED:20230125T141526Z
LOCATION:Gravity Initiative space\, 4th floor of Jadwin Hall\, Princeton U.
SUMMARY:Institute for Advanced Study / Princeton University Bahcall Lunch
URL:https://www.ias.edu/sns/events/institute-advanced-study-princeton-unive
rsity-bahcall-lunch-41
END:VEVENT
BEGIN:VEVENT
UID:30643035-3864-4635-a333-666539663930
DTSTAMP:20230604T064418Z
CREATED:20230222T161719Z
DESCRIPTION:Topic: Unbounded Fast Escaping Wandering Domains\n\nSpeakers: A
di Glücksam\n\nAffiliation: Northwestern University\n\nComplex dynamics ex
plores the evolution of points under iteration of\nfunctions of complex va
riables. In this talk I will introduce into the\ncontext of complex dynami
cs\, a new approximation tool allowing us to\nconstruct new examples of en
tire functions and show new possible\ndynamical behaviours. In particular\
, we answer a question of Rippon\nand Stallard from 2012 about unbounded w
andering domains with\nunbounded orbits\, and provide a collection of exam
ples supporting a\nconjecture of Baker.
DTSTART:20230321T180000Z
DTEND:20230321T190000Z
LAST-MODIFIED:20230418T142755Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Special Year Research Seminar
URL:https://www.ias.edu/math/events/special-year-research-seminar-22
END:VEVENT
BEGIN:VEVENT
UID:64316336-3134-4333-b831-326665626166
DTSTAMP:20230604T064418Z
CREATED:20230202T192049Z
DESCRIPTION:
DTSTART:20230321T190000Z
DTEND:20230321T210000Z
LAST-MODIFIED:20230504T131202Z
LOCATION:Rubenstein Commons | Meeting Room 5
SUMMARY:Reading Seminar on Perelman's Stability Theorem
URL:https://www.ias.edu/math/events/reading-seminar-perelmans-stability-the
orem-2
END:VEVENT
BEGIN:VEVENT
UID:63653037-3339-4730-b630-316165666563
DTSTAMP:20230604T064418Z
CREATED:20230313T164255Z
DESCRIPTION:Topic: TBA
DTSTART:20230321T190000Z
DTEND:20230321T200000Z
LAST-MODIFIED:20230313T164328Z
LOCATION:Peyton Hall\, Grand Central
SUMMARY:Princeton University Computational Astrophysics Club
URL:https://www.ias.edu/sns/events/princeton-university-computational-astro
physics-club-10
END:VEVENT
BEGIN:VEVENT
UID:64336361-3236-4162-b733-663365326535
DTSTAMP:20230604T064418Z
CREATED:20230314T171504Z
DESCRIPTION:Topic: We Have a History Too: One Hundred Years of Pre-Modern C
hina Studies in the U.S.\n\n \n\nWE HAVE A HISTORY TOO:\nONE HUNDRED YEARS
OF PRE-MODERN CHINA STUDIES IN THE U.S.\nTUESDAY\, MARCH 21\, DILWORTH RO
OM\n5:00 P.M. | WINE AND CHEESE\n5:30 P.M. | TALK\n\n \nThis talk will ske
tch the history of academic study of China in the\nU.S.\, beginning in 192
0\, with attention to how it differed from\nEuropean Sinology. I see it as
a story with intersecting trajectories\,\nincluding U.S.-China relations
and developments in both countries\,\ncollaboration between native speaker
s and language learners\, the\nexpansion of higher education\, new sources
of funding\, the founding of\nscholarly associations\, social change that
affects academic careers\,\ntechnological change that affects the life of
the scholar\, and\nintellectual change such as the rise of social and eco
nomic history\,\nreligious studies\, women’s studies\, environmental studi
es\, and much\nelse. \n\nPatricia Buckley Ebrey has taught Chinese history
and culture for many\nyears\, both at the University of Illinois and late
r the University of\nWashington. She has played a leadership role helping
students learn\nabout Chinese history and civilization. The first edition
of her\nsourcebook\, _Chinese Civilization: A Sourcebook_\, appeared in 19
81\nand is still widely used. Among her best-known books are T_he Inner\nQ
uarters: Marriage and the Lives of Women in the Sung Period_ (1993)\nand _
Emperor Huizong_ (2014). Her 2008 work\, _Accumulating Culture:\nThe Colle
ctions of Emperor Huizong_\, received the Smithsonian\nInstitution's 2010
Shimada Prize for Outstanding Work of East Asian\nArt History.\n\n_This le
cture is supported by the Tang Research Foundation._
DTSTART:20230321T210000Z
DTEND:20230321T210000Z
LAST-MODIFIED:20230314T171955Z
LOCATION:Dilworth Room
SUMMARY:Roger E. Covey Distinguished Lecture
URL:https://www.ias.edu/events/roger-e-covey-distinguished-lecture
END:VEVENT
BEGIN:VEVENT
UID:64316264-6532-4066-b566-333136376464
DTSTAMP:20230604T064418Z
CREATED:20230321T121243Z
DESCRIPTION:Topic: Sets of Multiplicative Recurrence\n\nSpeakers: Joel More
ira\n\nAffiliation: University of Warwick\; Member\, School of Mathematics
\n\nSets of recurrence were introduced by Furstenberg in the context of\ne
rgodic theory and have an equivalent combinatorial characterization\nas_ i
ntersective sets_\, an observation which has led to interesting\nconnectio
ns between these areas.\n\nOriginally defined for a single measure preserv
ing transformation\, the\nnotion of sets of recurrence makes sense in any
semigroup action\,\nincluding actions by the semigroup of multiplicative n
atural numbers.\nWe explore some examples and properties of these sets\, t
heir\nconnection to combinatorics and number theory\, and the many still o
pen\nquestions about them.
DTSTART:20230322T143000Z
DTEND:20230322T160000Z
LAST-MODIFIED:20230418T145453Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Special Year Learning Seminar
URL:https://www.ias.edu/math/events/special-year-learning-seminar-12
END:VEVENT
BEGIN:VEVENT
UID:32313663-6434-4665-b835-333834383862
DTSTAMP:20230604T064418Z
CREATED:20221116T193225Z
DESCRIPTION:Topic: Diffusion and Mixing for Two-dimensional Hamiltonian Flo
ws\n\nSpeakers: Michele Coti-Zelati\n\nAffiliation: Imperial College Londo
n\n\nWe consider general two-dimensional autonomous velocity fields and\np
rove that their mixing and dissipation features are limited to\nalgebraic
rates. As an application\, we consider a standard cellular\nflow on a peri
odic box\, and explore potential consequences for the\nlong-time dynamics
in the two-dimensional Euler equations.
DTSTART:20230322T190000Z
DTEND:20230322T200000Z
LAST-MODIFIED:20230411T153410Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Analysis and Mathematical Physics
URL:https://www.ias.edu/math/events/analysis-and-mathematical-physics-5
END:VEVENT
BEGIN:VEVENT
UID:66323233-6166-4231-b238-656139633933
DTSTAMP:20230604T064418Z
CREATED:20230224T191533Z
DESCRIPTION:Topic: Model-Independent Constraints on Dark Matter and Cosmic
Neutrino Profiles with Ultra-Precision Astrometry\n\nSpeakers: Yu-Dai Tsai
\n\nAffiliation: University of California\, Irvine\n\nI will explore the '
Elusive Universe\,' where dark matter\, neutrinos\,\nand gravity sculpt ou
r observed nature\, leaving many open questions.\nMy work focuses on openi
ng up new directions to answer these puzzles.\nI will present two approach
es:\n1) Using precision astrometry and space mission data to study general
\nrelativity\, dark matter\, cosmic neutrinos\, and fifth forces [1\, 2].
\n2) Utilizing quantum sensors mounted on spacecraft to study ultralight\n
dark matter gravitationally bound to the sun\, inspired by NASA Deep\nSpac
e Atomic Clocks and Parker Solar Probe [3].\nThese approaches can also be
applied to studying interstellar objects\,\nprimordial black holes\, Plane
t Nine\, and topological defects.\nThey are highly interdisciplinary effor
ts\, highlighted by the DOE\noffice of science\, involving particle theori
sts and experts from NASA\,\nESA\, and NIST.\n\n[1] Tsai et al\, https://a
rxiv.org/abs/2210.03749 (2023)\n[2] Tsai et al\, https://arxiv.org/abs/210
7.04038\, JCAP\n(2023)\, https://www.youtube.com/watch?v=xDX9XwLHBuM\n[3]
Tsai et al\, Nature Astronomy volume 7\, pages113–121\n(2023)\, https://ww
w.nature.com/articles/s41550-022-01833-6
DTSTART:20230323T150000Z
DTEND:20230323T160000Z
LAST-MODIFIED:20230321T124745Z
LOCATION:Bloomberg Lecture Hall
SUMMARY:Institute for Advanced Study Astrophysics Seminar
URL:https://www.ias.edu/sns/events/institute-advanced-study-astrophysics-se
minar-61
END:VEVENT
BEGIN:VEVENT
UID:61363731-6635-4336-a135-313963656335
DTSTAMP:20230604T064418Z
CREATED:20230317T122038Z
DESCRIPTION:Topic: Wondering About Wandering Domains\n\nSpeakers: Adi Glück
sam \n\nAffiliation: Northwestern University\n\nThe goal of this talk is t
o present two problems related to wandering\ndomains. I will define the pa
rticipating objects\, and give a\nhistorical overview of what was done and
what is left to do to solve\nthese problems. \n\nNo basic knowledge in co
mplex dynamics is required.
DTSTART:20230323T170000Z
DTEND:20230323T180000Z
LAST-MODIFIED:20230322T180711Z
LOCATION:Simonyi Hall 101
SUMMARY:What Is .... ?
URL:https://www.ias.edu/math/events/what-5
END:VEVENT
BEGIN:VEVENT
UID:35306138-3536-4266-b238-623333303538
DTSTAMP:20230604T064418Z
CREATED:20221114T204206Z
DESCRIPTION:Topic: The Nonvanishing of Selmer Groups for Certain Symplectic
Galois Representations\n\nSpeakers: Samuel Mundy\n\nAffiliation: Princeto
n University\n\nGiven an automorphic representation \pi of SO(n\,n+1) with
certain nice\nproperties at infinity\, one can nowadays attach to \pi a p
-adic Galois\nrepresentation R of dimension 2n. The Bloch--Kato conjecture
s then\npredict in particular that if the L-function of R vanishes at its
\ncentral value\, then the Selmer group attached to a particular twist of
\nR is nontrivial.\n\nI will explain work in progress proving the nonvanis
hing of these\nSelmer groups for such representations R\, assuming the L-f
unction of R\nvanishes to odd order at its central value\, under some hypo
theses on\n\pi at the prime p. The proof constructs a nontrivial Selmer cl
ass\nusing p-adic deformations of Eisenstein series attached to \pi\, and
I\nwill highlight the key new input coming from local representation\ntheo
ry which allows us to check the Selmer conditions for this class\nat prime
s for which \pi is ramified.
DTSTART:20230323T203000Z
DTEND:20230323T213000Z
LAST-MODIFIED:20230324T142321Z
LOCATION:Princeton University\, Fine Hall 214
SUMMARY:Joint IAS/PU Number Theory Seminar
URL:https://www.ias.edu/math/events/joint-iaspu-number-theory-seminar-20
END:VEVENT
BEGIN:VEVENT
UID:31326261-3438-4834-b065-613339366130
DTSTAMP:20230604T064418Z
CREATED:20230228T172056Z
DESCRIPTION:IN CONVERSATION WITH DANIEL WEISS\, PRESIDENT OF THE METROPOLIT
AN\nMUSEUM OF ART\nThursday\, March 23\n5:30 p.m. | Wolfensohn Hall \n\nDa
niel H. Weiss\, president and chief executive officer of The\nMetropolitan
Museum of Art\, is a scholar of art history and former\npresident of Lafa
yette College and Haverford College.\n\nHear him in conversation with IAS
Director David Nirenberg as they\ndiscuss Weiss’s latest book\, his work\,
and the state of culture and\nhigher education in the world today.
DTSTART:20230323T213000Z
DTEND:20230323T213000Z
LAST-MODIFIED:20230315T172223Z
LOCATION:Wolfensohn Hall
SUMMARY:In Conversation with Daniel Weiss\, President of The Metropolitan M
useum of Art
URL:https://www.ias.edu/events/conversation-daniel-weiss-president-metropol
itan-museum-art
END:VEVENT
BEGIN:VEVENT
UID:39396561-3638-4136-b733-656265646363
DTSTAMP:20230604T064418Z
CREATED:20221205T204429Z
DESCRIPTION:Topic: Symplectic Barriers\n\nSpeakers: Yaron Ostrover\n\nAffil
iation: Tel Aviv University\n\nIn this talk we discuss the existence of a
new type of rigidity of\nsymplectic embeddings coming from obligatory inte
rsections with\nsymplectic planes. This is based on a joint work with P. H
aim-Kislev\nand R. Hind.
DTSTART:20230324T131500Z
DTEND:20230324T144500Z
LAST-MODIFIED:20230324T130225Z
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-114
END:VEVENT
BEGIN:VEVENT
UID:62363538-3331-4431-b137-323632643536
DTSTAMP:20230604T064418Z
CREATED:20221116T194540Z
DESCRIPTION:Topic: Topic #1 (Aru): A few recent stories about the Gaussian
free field\; Topic #2 (Ding): Long range order for three-dimensional rando
m field Ising model\n\nSpeakers: Juhan Aru\, Jian Ding\n\nAffiliation: Éco
le Polytechnique Fédérale de Lausanne\; Peking University\n\nAru Abstract:
In the first story we wonder about the ubiquity of the\nfree field and lo
ok at a few characterisation theorems. In the second\nstory we discuss the
mutually benefiting relationship between the\ndiscrete free field and the
O(N) spin model. Finally\, in a third story\nwe see how twisted/orbifold
free fields\, CLE_4 and Brownian loop soup\ncome together to help describe
correlation functions of the\nAshkin-Teller model.\n\nDing Abstract: Cons
ider the Ising model in three and higher dimensions\nwith i.i.d. mean-zero
Gaussian external field. A classic result of\nImbrie (1985) and Bricmont-
Kupiainen (1988) proved that at very low\ntemperature long range order exi
sts as long as the variance of the\nexternal field is small enough. In thi
s talk\, I will present a couple\nof recent results: (1) A new and simple
proof (with Zijie Zhuang) for\nthe result of Imbrie and Bricmont-Kupiainen
. The proof combines an\nextension of the Peierls argument with an ingredi
ent from Chalker\n(1983) and Fisher-Fröhlich-Spencer (1984). (2) A result
(with Yu Liu\nand Aoteng Xia) that takes (1) as a starting point and exten
ds it to\nthe entire low temperature regime. In addition\, I will mention
a new\ncorrelation inequality (with Jian Song and Rongfeng Sun) for the Is
ing\nmodel which implies exponential decay in the entire high temperature
\nregime.
DTSTART:20230324T141500Z
DTEND:20230324T161500Z
LAST-MODIFIED:20230411T153449Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Probability Seminar
URL:https://www.ias.edu/math/events/probability-seminar-22
END:VEVENT
BEGIN:VEVENT
UID:30383633-3565-4137-b566-636265613330
DTSTAMP:20230604T064418Z
CREATED:20230303T150725Z
DESCRIPTION:Topic: TBA
DTSTART:20230324T163000Z
DTEND:20230324T173000Z
LAST-MODIFIED:20230303T150741Z
LOCATION:Dome Room\, Peyton Hall or Zoom
SUMMARY:Princeton University Astroplasmas Seminar
URL:https://www.ias.edu/sns/events/princeton-university-astroplasmas-semina
r-42
END:VEVENT
BEGIN:VEVENT
UID:31613039-3731-4864-a265-643761363530
DTSTAMP:20230604T064418Z
CREATED:20230313T154451Z
DESCRIPTION:Topic: How Ram Pressure Drives Radial Gas Motions in the Surviv
ing Disk\n\nSpeakers: Stephanie Tonnesen\n\nAffiliation: CCA\n\nEach week\
, we hold a relatively informal seminar/discussion series\nwith an emphasi
s on extra-galactic and large-scale structure\nastrophysics.\n\nDuring Gal
read a leader/visitor presents a recent paper to the\ndiscussion group. Th
e PDF of the paper is projected onto a large\nscreen\, and a guest explain
s the paper\, section by section\, in greater\ndetail than may be explaine
d within the text of the article. To aid\nwith discussion\, only the artic
le PDF is presented -- no\npowerpoint-style slides. Galread discussions ar
e very friendly and\ninteractive.
DTSTART:20230327T150000Z
DTEND:20230327T160000Z
LAST-MODIFIED:20230324T171001Z
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-65
END:VEVENT
BEGIN:VEVENT
UID:65313032-6536-4261-b837-666634373432
DTSTAMP:20230604T064418Z
CREATED:20220712T181242Z
DESCRIPTION:Topic: Connes Embedding Problem\, Kirchberg's Conjecture and Ts
irelson's Problem\n\nSpeakers: Thomas Vidick\n\nAffiliation: California In
stitute of Technology\n\nThe three problems referred to in the title origi
nate in the theory of\nvon Neumann algebras\, C* algebras\, and quantum in
formation theory\nrespectively. Each of them has been a deep long-standing
open problem\nin its respective area. Surprisingly\, the three problems a
re\nequivalent.\n\nRecently we gave a negative answer to all three problem
s by taking an\nunexpected path -- through complexity theory.\n\nThe goal
of these three lectures is to give a flavor of the resolution\nof these th
ree problems\, for a mathematical audience. In the first\nlecture I will i
ntroduce the problems described in the title and\nexplain their equivalenc
e. I will then formulate the approach\, which\ngoes through the careful de
sign of families of linear functionals\nacting on 'quantum correlation spa
ces' and derived from the theory of\nnonlocal games in quantum information
theory.
DTSTART:20230327T151500Z
DTEND:20230327T161500Z
LAST-MODIFIED:20230403T152425Z
LOCATION:Simonyi Hall 101 and Remote Access - see Zoom link below
SUMMARY:Marston Morse Lectures
URL:https://www.ias.edu/math/events/marston-morse-lectures-103
END:VEVENT
BEGIN:VEVENT
UID:33666532-3134-4733-b139-636338366533
DTSTAMP:20230604T064418Z
CREATED:20230313T182053Z
DESCRIPTION:Topic: General Discussion
DTSTART:20230327T160000Z
DTEND:20230327T170000Z
LAST-MODIFIED:20230324T161613Z
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-79
END:VEVENT
BEGIN:VEVENT
UID:36613530-3363-4137-a539-613633316237
DTSTAMP:20230604T064418Z
CREATED:20230303T145816Z
DESCRIPTION:Topic: Large scale structure formation in theories with scale d
ependent linear growth\n\nSpeakers: Alejandro Aviles\n\nAffiliation: Insti
tuto Nacional De Investigaciones Nucleares\n\nIn this talk\, I will presen
t recent developments in perturbation\ntheory regarding the study of the l
arge-scale clustering of galaxies\nin theories with scale-dependent linear
growth\, such as those\ninvolving massive neutrinos and modified gravity.
The challenge in\nthese models is that the introduced scale is incorporat
ed into the\nperturbative kernels. We utilize the Lagrangian approach to c
ompute\nthese kernels and then map them to the Eulerian frame to obtain th
e\npower spectrum. Unfortunately\, our method for computing statistics is
\nquite slow. Therefore\, we simplify the modified kernels by retaining\no
nly the terms that contain the scale-dependent growth factor. By\ndoing so
\, we can use FFTLog techniques to calculate loop integrals at\na speed si
milar to that of the standard LCDM model. This approach\nenables us to est
imate parameters from BOSS and eBOSS data using\nstandard MCMC methods.
DTSTART:20230327T163000Z
DTEND:20230327T180000Z
LAST-MODIFIED:20230324T161516Z
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-55
END:VEVENT
BEGIN:VEVENT
UID:63366638-3538-4664-a135-333230353661
DTSTAMP:20230604T064418Z
CREATED:20221207T163552Z
DESCRIPTION:Topic: A Coproduct Structure on Symplectic Cohomology\n\nSpeake
rs: Lea Kenigsberg\n\nAffiliation: Columbia University\n\nI will discuss c
oproduct structures and why we care about them. Then I\nwill define a new
coproduct structure on symplectic cohomology and\nindicate how to compute
it in an example.
DTSTART:20230327T200000Z
DTEND:20230327T213000Z
LAST-MODIFIED:20230321T131941Z
LOCATION:Fine 314 and Remote Access
SUMMARY:Joint IAS/Princeton University Symplectic Geometry Seminar
URL:https://www.ias.edu/math/events/joint-iasprinceton-university-symplecti
c-geometry-seminar-206
END:VEVENT
BEGIN:VEVENT
UID:61636162-3635-4365-b635-346239656637
DTSTAMP:20230604T064418Z
CREATED:20230104T133539Z
DESCRIPTION:Topic: On the geometry of p-adic Shimura varieties\n\nSpeakers:
Mingjia Zhang\n\nAffiliation: Bonn University\n\nShimura varieties play a
n important role in the Langlands program. In\nthis talk I will explain a
conjectural fiber product structure on them\nas p-adic adic spaces\, which
generalizes the fiber product formula of\nMantovan. To understand the con
jecture for PEL-type Shimura varieties\nis an ongoing thesis project.
DTSTART:20230327T203000Z
DTEND:20230327T213000Z
LAST-MODIFIED:20230411T153734Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Joint PU/IAS Arithmetic Geometry
URL:https://www.ias.edu/math/events/joint-puias-arithmetic-geometry
END:VEVENT
BEGIN:VEVENT
UID:33333863-6364-4830-b932-333866383439
DTSTAMP:20230604T064418Z
CREATED:20221209T183624Z
DESCRIPTION:Topic: The Lens of Abelian Embeddings\n\nSpeakers: Dor Minzer\n
\nAffiliation: Massachusetts Institute of Technology\n\nA predicate $P:\Si
gma^k \to {0\,1}$ is said to be linearly embeddable\nif the set of assignm
ents satisfying it can be embedded in an Abelian\ngroup. \n\nIn this talk\
, we will present this notion and mention problems it\nrelates to from var
ious areas. These areas include hardness of\napproximation\, multi-player
parallel repetition\, property testing and\nadditive combinatorics. Depend
ing on time\, we will discuss a few\npartial results on the study of this
notion\, as well as applications.\n\nMostly based on joint works with Amey
Bhangale\, Subhash Khot.
DTSTART:20230328T143000Z
DTEND:20230328T163000Z
LAST-MODIFIED:20230404T131934Z
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-532
END:VEVENT
BEGIN:VEVENT
UID:61393365-3866-4631-b531-636663333164
DTSTAMP:20230604T064418Z
CREATED:20230125T141533Z
DESCRIPTION:The Bahcall Lunch follows the astrophysics colloquium lecture.
DTSTART:20230328T163000Z
DTEND:20230328T173000Z
LAST-MODIFIED:20230125T141545Z
LOCATION:Gravity Initiative space\, 4th floor of Jadwin Hall\, Princeton U.
SUMMARY:Institute for Advanced Study / Princeton University Bahcall Lunch
URL:https://www.ias.edu/sns/events/institute-advanced-study-princeton-unive
rsity-bahcall-lunch-42
END:VEVENT
BEGIN:VEVENT
UID:65653361-6532-4037-a431-653335356235
DTSTAMP:20230604T064418Z
CREATED:20230222T162017Z
DESCRIPTION:Topic: On the Maximum of a Twisted Divisor Function\n\nSpeakers
: Dimitris Koukoulopoulos\n\nAffiliation: Université de Montréal\n\nGiven
$n\in\mathbb{N}$ and $\xi\in\mathbb{R}$\, let\n$\tau(n\;\xi)=\sum_{d|n}d^{
i\xi}$. Hall and Tenenbaum asked in their\nbook \textit{Divisors} what is
the value of $\max_{\xi\in[1\,2]}\n|\tau(n\;\xi)|$ for a ``typical'' integ
er $n$. I will present work in\nprogress\, carried out in collaboration wi
th Louis-Pierre Arguin and\nPaul Bourgarde\, that answers this question. O
ur approach builds on the\nthe recent work of Arguin\, Belius\, Bourgade\,
Radziwi\l\l~and\nSoundararajan about the distribution of $\max_{h\in[0\,1
]}\n|\zeta(1/2+it+ih)|$ when $t$ is chosen uniformly at random from\n$[0\,
T]$.
DTSTART:20230328T180000Z
DTEND:20230328T190000Z
LAST-MODIFIED:20230418T145532Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Special Year Research Seminar
URL:https://www.ias.edu/math/events/special-year-research-seminar-23
END:VEVENT
BEGIN:VEVENT
UID:32326132-6664-4234-a362-346238396130
DTSTAMP:20230604T064418Z
CREATED:20230202T192139Z
DESCRIPTION:
DTSTART:20230328T190000Z
DTEND:20230328T210000Z
LAST-MODIFIED:20230504T131107Z
LOCATION:Rubenstein Commons | Meeting Room 5
SUMMARY:Reading Seminar on Perelman's Stability Theorem
URL:https://www.ias.edu/math/events/reading-seminar-perelmans-stability-the
orem-3
END:VEVENT
BEGIN:VEVENT
UID:34353031-3435-4566-b037-333538386536
DTSTAMP:20230604T064418Z
CREATED:20230313T164334Z
DESCRIPTION:Topic: Pseudo random number generator and parallel computing Ti
me permitting we will discuss a paper on a new interesting method called D
eep Galerkin Method.\n\nSpeakers: Romain Teyssier\n\nAffiliation: Princeto
n University
DTSTART:20230328T190000Z
DTEND:20230328T200000Z
LAST-MODIFIED:20230324T164953Z
LOCATION:Peyton Hall\, Grand Central
SUMMARY:Princeton University Computational Astrophysics Club
URL:https://www.ias.edu/sns/events/princeton-university-computational-astro
physics-club-11
END:VEVENT
BEGIN:VEVENT
UID:62386632-3633-4230-a465-363337626534
DTSTAMP:20230604T064418Z
CREATED:20230306T143637Z
DESCRIPTION:Topic: Recognizing Groups in Erdős Geometry and Model Theory\n
\nSpeakers: Artem Chernikov\n\nAffiliation: UCLA\n\nErdős-style geometry i
s concerned with combinatorial questions about\nsimple geometric objects\,
such as counting incidences between finite\nsets of points\, lines\, etc.
These questions can be typically viewed as\nasking for the possible numbe
r of intersections of a given\n(semi-)algebraic variety with large finite
grids of points. An\ninfluential theorem of Elekes and Szabó indicates tha
t such\nintersections have maximal size only for varieties that are closel
y\nconnected to algebraic groups. Techniques from model theory -\nHrushov
ski's group configuration and its variants - are very useful in\nrecognizi
ng these groups\, and allow to obtain higher arity and\ndimension generali
zations of the Elekes-Szabó theorem. In fact\, all\nof this is not just ab
out polynomials and works in the larger setting\nof definable sets in o-mi
nimal structures.\n\nJoint work with Kobi Peterzil and Sergei Starchenko.
DTSTART:20230328T193000Z
DTEND:20230328T203000Z
LAST-MODIFIED:20230418T145610Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Special Year Research Seminar
URL:https://www.ias.edu/math/events/special-year-research-seminar-26
END:VEVENT
BEGIN:VEVENT
UID:65316332-3735-4131-b030-386365316663
DTSTAMP:20230604T064418Z
CREATED:20230203T134402Z
DESCRIPTION:Speakers: Anna Tsing\n\nAffiliation: University of California\,
Santa Cruz\n\nPATCHY ANTHROPOCENE: THE FERAL IMPACTS OF INFRASTRUCTURE
\nAnna Tsing\, Professor of Anthropology\nUniversity of California\, Santa
Cruz\nTUESDAY\, MARCH 28\, 2023\, 5:30 P.M.\nWOLFENSOHN HALL AND VIA ZOOM
\n \n\nGlobal climate change policy is not enough: environmental damage\n
emerges patch by patch. It is up close and personal as well as\nplanetary
. Perhaps what we need is a “field guide” to the feral\,\nthat is\, to no
nhuman responses to human building projects that are out\nof human control
: from noxious weeds to plagues to out-of-control\ncarbon-dioxide emission
s. This talk shows how we might address the\nAnthropocene in its granular
particularity—while still attending to\nthe global and the planetary.\n\nC
urrently Professor of Anthropology at the University of California\,\nSant
a Cruz\, Anna Lowenhaupt Tsing is an internationally renowned\nanthropolog
ist. In addition to over forty articles\, Prof Tsing is the\nauthor of sev
eral award-winning books\, including _In the Realm of the\nDiamond Queen_
(1995) and _Friction: An Ethnography of Global\nConnection_ (2005). In 201
0\, Prof. Tsing received a Guggenheim\nFellowship\, during which she wrote
her multiple award–winning\nbook\, _The Mushroom at the End of the World_
(2015)\, which considers\nhow the matsutake mushroom is a figure for unde
rstanding global\ndilemmas of capitalism and the environment. Between 2013
and 2018\,\nProf. Tsing was Niels Bohr Professor at Aarhus University in
Denmark\,\nwhere she established a transdisciplinary program encompassing
the\nhumanities\, natural sciences\, social sciences\, and the arts in an
\nexploration of the “Anthropocene\,' i.e.\, the geologic epoch\ndefined
by human disturbance of the earth’s ecosystems. From that\nproject\, she c
o-curated _Feral Atlas: The More-than-Human\nAnthropocene_ (2021)\, a mult
i-disciplinary digital exploration of the\nAnthropocene. She is currently
co-authoring a book that draws from\nthat project\, entitled _Field Guide
to the Patchy Anthropocene__._\n\n_This event is part of the Institute’s L
ectures on Public Policy\nseries\, funded by an anonymous gift and curated
by the School of\nSocial Science. The series aims to address issues of br
oad import\,\nrelevant to contemporary politics and social conditions._
DTSTART:20230328T213000Z
DTEND:20230328T213000Z
LAST-MODIFIED:20230324T152823Z
LOCATION:Wolfensohn Hall and Remote Access
SUMMARY:Patchy Anthropocene: The Feral Impacts of Infrastructure
URL:https://www.ias.edu/events/patchy-anthropocene-feral-impacts-infrastruc
ture
END:VEVENT
BEGIN:VEVENT
UID:32396531-3239-4030-a537-613863653561
DTSTAMP:20230604T064418Z
CREATED:20221115T194439Z
DESCRIPTION:Topic: From Nonlocal Games to Undecidability\n\nSpeakers: Thoma
s Vidick\n\nAffiliation: California Institute of Technology\n\nIn this lec
ture I will present basic elements of the theory of\nnonlocal games from q
uantum information theory and give some examples.\nI will then introduce t
he idea of 'compressing' the complexity of\nnonlocal games\, and show how
the right form of compression leads to\nundecidability of a natural optimi
zation problem associated with the\ngames. Using the results from the firs
t lecture\, the undecidability\nresult will imply a negative answer to Tsi
relson's problem and its\nequivalent problems in operator algebras.
DTSTART:20230329T150000Z
DTEND:20230329T160000Z
LAST-MODIFIED:20230403T152346Z
LOCATION:Simonyi Hall 101 and Remote Access - see Zoom link below
SUMMARY:Marston Morse Lectures
URL:https://www.ias.edu/math/events/marston-morse-lectures-104
END:VEVENT
BEGIN:VEVENT
UID:39363362-3938-4235-b765-353862663339
DTSTAMP:20230604T064418Z
CREATED:20230119T220643Z
DESCRIPTION:Topic: A Constructivist History of Mathematical Physics ... wit
h Equations?\n\nSpeakers: Andrew Warwick\n\nAffiliation: St. John’s Colleg
e\n\nClick here for abstract details.\n[https://www.ias.edu/sites/default/
files/MathConv_abstract03-29-23.jpg]
DTSTART:20230329T220000Z
DTEND:20230330T000000Z
LAST-MODIFIED:20230303T152153Z
LOCATION:Rubenstein Commons | Meeting Room 5
SUMMARY:Mathematical Conversations
URL:https://www.ias.edu/math/events/mathematical-conversations-257
END:VEVENT
BEGIN:VEVENT
UID:36386237-3636-4263-a465-663439393362
DTSTAMP:20230604T064418Z
CREATED:20230224T191632Z
DESCRIPTION:Topic: Exploring galactic nuclei with tidal disruption events\n
\nSpeakers: Brenna Mockler\n\nAffiliation: UCLA/Carnegie\n\nTidal disrupti
on events (TDEs) provide an exciting opportunity to\nstudy supermassive bl
ack holes (SMBHs) in quiescent galaxies and the\nstellar populations and d
ynamics in galactic nuclei. They test the\nlimits of black hole accretion
by regularly producing super-Eddington\nmass fallback rates\, and their em
ission encodes information about the\nproperties of the disrupted star and
SMBH. While these transients have\nlong been theoretically predicted\, it
is only in the past ~decade that\nthey have been discovered observational
ly\, and the number of these\nobservations has risen dramatically in the p
ast few years with the\nonset of transient surveys such as ASASSN and ZTF.
I’ll discuss how\nwe can combine theoretical models with observations to
investigate the\nSMBH mass function\, look for SMBH binaries\, and study t
he properties\nof stars on size scales we cannot observe outside our own g
alactic\nnuclei.
DTSTART:20230330T150000Z
DTEND:20230330T160000Z
LAST-MODIFIED:20230306T141007Z
LOCATION:Bloomberg Lecture Hall
SUMMARY:Institute for Advanced Study Astrophysics Seminar
URL:https://www.ias.edu/sns/events/institute-advanced-study-astrophysics-se
minar-62
END:VEVENT
BEGIN:VEVENT
UID:66653237-6430-4061-b963-306634663338
DTSTAMP:20230604T064418Z
CREATED:20230324T123531Z
DESCRIPTION:Topic: What is Combinatorial Hodge Theory?\n\nSpeakers: Johanna
Steinmeyer \n\nAffiliation: University of Copenhagen
DTSTART:20230330T170000Z
DTEND:20230330T180000Z
LAST-MODIFIED:20230324T124554Z
LOCATION:Simonyi Hall 101
SUMMARY:What Is .... ?
URL:https://www.ias.edu/math/events/what-6
END:VEVENT
BEGIN:VEVENT
UID:61373062-3630-4139-a363-343433383531
DTSTAMP:20230604T064418Z
CREATED:20221114T203524Z
DESCRIPTION:Topic: Integrality of Theta Liftings to a Definite U(2)\n\nSpea
kers: Yu-Sheng Lee\n\nAffiliation: Columbia University\n\nWe discuss the i
ntegrality of theta liftings of anti-cyclotomic\ncharacters to a definite
unitary group of two variables. This will\nallow us to construct a Hida fa
mily of the theta liftings and relate\nthe congruence module of which to a
n anti-cyclotomic p-adic\nL-function. The result is an input to a construc
tion of Euler systems\nfollowing Urban's approach.
DTSTART:20230330T203000Z
DTEND:20230330T213000Z
LAST-MODIFIED:20230403T145240Z
LOCATION:Princeton University\, Fine Hall 214
SUMMARY:Joint IAS/PU Number Theory Seminar
URL:https://www.ias.edu/math/events/joint-iaspu-number-theory-seminar-16
END:VEVENT
BEGIN:VEVENT
UID:35303163-3065-4737-b062-356230613839
DTSTAMP:20230604T064418Z
CREATED:20230307T194140Z
DESCRIPTION: \n\n \n\n \n\nMICROHETEROTOPIAS: CHEMISTRY MEETS GLASSBLOWING
\n\nTHURSDAY\, MARCH 30\, 5:30 P.M.\n\nWEST BUILDING LECTURE HALL \n\n \n
\nDesperate to solve chemistry's greatest problem\, Justus Liebig made\nth
e first Kaliapparat in 1830. That small piece of glassware started\nsometh
ing big. The Kaliapparat made Liebig's name\, but lampworked\nglassware tr
ansformed chemistry. \nChemists use other worlds in glass - the Microheter
otopias of our\ntitle - to manage matter. Making Microheterotopias relies
on skilled\nscientific glassblowers. This talk explains what happened when
\nchemistry met glassblowing -and why that link remains vital today. \n\nC
ATHERINE M. JACKSON (Associate Professor of the History of Science\,\nUniv
ersity of Oxford) will be joined by Master\nScientific Glassblower TRACY D
RIER of the UW-Madison Chemistry\nDepartment. Together they will present a
recreation of discovery\nthrough the manipulation of glass in fire.
DTSTART:20230330T213000Z
DTEND:20230330T213000Z
LAST-MODIFIED:20230307T215542Z
LOCATION:West Building Lecture Hall
SUMMARY:Microheterotopias: Chemistry Meets Glassblowing
URL:https://www.ias.edu/events/microheterotopias-chemistry-meets-glassblowi
ng
END:VEVENT
BEGIN:VEVENT
UID:63376364-6433-4437-a137-623263346139
DTSTAMP:20230604T064418Z
CREATED:20221205T204507Z
DESCRIPTION:Topic: A Relative Calabi-Yau Structure for Legendrian Contact H
omology\n\nSpeakers: Georgios Dimitroglou Rizell\n\nAffiliation: Uppsala U
niversity\n\nThe duality long exact sequence relates linearised Legendrian
contact\nhomology and cohomology and was originally constructed by Sablof
f in\nthe case of Legendrian knots. We show how the duality long exact\nse
quence can be generalised to a relative Calabi-Yau structure\, as\ndefined
by Brav and Dyckerhoff. We also discuss the generalised notion\nof the fu
ndamental class and give applications. The structure is\nestablished throu
gh the acyclicity of a version of Rabinowitz Floer\nHomology for Legendria
n submanifolds with coefficiens in the\nChekanov-Eliashberg DGA. This is j
oint work in progress with Legout.
DTSTART:20230331T131500Z
DTEND:20230331T144500Z
LAST-MODIFIED:20230331T130542Z
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-113
END:VEVENT
BEGIN:VEVENT
UID:66653737-3236-4562-a435-306639616633
DTSTAMP:20230604T064418Z
CREATED:20221115T194532Z
DESCRIPTION:Topic: Efficient Stability for the Weyl-Heisenberg Group\n\nSpe
akers: Thomas Vidick\n\nAffiliation: California Institute of Technology\n
\nThe question of stability of approximate group homomorphisms was first\n
formulated by Ulam in the 1940s. One of the most famous results in\nthis a
rea is Kazhdan's 1982 result on stability of approximate unitary\nrepresen
tations of an amenable group\, when approximation is measured\nusing the o
perator norm. More recently\, motivated in part by the study\nof group sof
icity and hyperlinearity\, the study of stability has been\npursued for an
increasing variety of notions of approximation.\n\nOne of the key technic
al ingredients in the resolution of Tsirelson's\nproblem is a notion of 'e
fficient' approximate stability\, and its\ndemonstration for a specific fa
mily of finite non-abelian groups\, the\nWeyl-Heisenberg groups. In this (
mostly self-contained) lecture I will\nformulate the efficient stability r
esult\, give some proof ideas\, and\nexplain its use for the compression p
rocedure introduced in the second\nlecture.
DTSTART:20230331T150000Z
DTEND:20230331T160000Z
LAST-MODIFIED:20230403T152303Z
LOCATION:Simonyi Hall 101 and Remote Access - see Zoom link below
SUMMARY:Marston Morse Lectures
URL:https://www.ias.edu/math/events/marston-morse-lectures-105
END:VEVENT
BEGIN:VEVENT
UID:35646465-3961-4261-a430-386137393733
DTSTAMP:20230604T064418Z
CREATED:20230123T163624Z
DESCRIPTION:Topic: Fractal properties\, noise-sensitivity and chaos in mode
ls of random geometry.\n\nSpeakers: Shirshendu Ganguly\n\nPlanar last pass
age percolation models are canonical examples of\nstochastic growth\, poly
mers and random geometry in the\nKardar-Parisi-Zhang universality class\,
where one considers oriented\npaths between points in a random environment
accruing the integral of\nthe noise along itself as its weight. Given the
endpoints\, the\nextremal path with the maximum weight is termed as the g
eodesic. \n\nThese models can also be viewed as examples of disordered sy
stems\nadmitting complex energy landscapes. In this formulation\, the geod
esic\nis the ground state\, the configuration with lowest energy\, lying a
t\nthe base of the deepest valley.\n\n In this talk we will review various
recent results about such models\nrelated to fractal geometry\, noise-sen
sitivity and chaos.
DTSTART:20230331T151500Z
DTEND:20230331T161500Z
LAST-MODIFIED:20230411T153858Z
LOCATION:West Lecture Hall and Remote Access
SUMMARY:Probability Seminar
URL:https://www.ias.edu/math/events/probability-seminar-23
END:VEVENT
BEGIN:VEVENT
UID:64386635-3161-4531-b664-316539623664
DTSTAMP:20230604T064418Z
CREATED:20221219T160729Z
DESCRIPTION:Topic: A library lost in translation: Paul Sbath’s corresponden
ce with Eugène Tisserant\n\nSpeakers: Celeste Gianni\n\nAffiliation: Hill
Museum and Manuscript Library\, Collegeville MN\n\nThe object of this lect
ure series is to bring together scholars and\nlibrarians engaged with coll
ections of correspondences and/or include\nrelated projects that use appro
priate digital tools to map and analyze\nsuch corpora. It is hosted by Sab
ine Schmidtke (NES@IAS) and María\nMercedes Tuya (Digital Scholarship @IAS
). \n\nFor additional information on this event and the lecture\nseries vi
sit:\n https://albert.ias.edu/20.500.12111/8044.\n\n
DTSTART:20230331T160000Z
DTEND:20230331T170000Z
LAST-MODIFIED:20230420T174438Z
LOCATION:Zoom event
SUMMARY:Scholarly Correspondences Among Orientalists: A Series of Lectures
URL:https://www.ias.edu/hs/events/scholarly-correspondences-among-orientali
sts-series-lectures-5
END:VEVENT
BEGIN:VEVENT
UID:61313836-6564-4236-a366-316636613432
DTSTAMP:20230604T064418Z
CREATED:20230303T150750Z
DESCRIPTION:Topic: General Discussion
DTSTART:20230331T163000Z
DTEND:20230331T173000Z
LAST-MODIFIED:20230324T165658Z
LOCATION:Dome Room\, Peyton Hall or Zoom
SUMMARY:Princeton University Astroplasmas Seminar
URL:https://www.ias.edu/sns/events/princeton-university-astroplasmas-semina
r-43
END:VEVENT
BEGIN:VEVENT
UID:33393637-6431-4161-b631-643935343130
DTSTAMP:20230604T064418Z
CREATED:20221014T133630Z
DESCRIPTION:Topic: TBD
DTSTART:20230331T170000Z
DTEND:20230331T193000Z
LAST-MODIFIED:20230411T154102Z
LOCATION:Rubenstein Commons | Meeting Room 5
SUMMARY:Milnor Conjecture Learning Seminar
URL:https://www.ias.edu/math/events/milnor-conjecture-learning-seminar-11
END:VEVENT
BEGIN:VEVENT
UID:35643531-6565-4334-b738-396561333863
DTSTAMP:20230604T064418Z
CREATED:20230313T154514Z
DESCRIPTION:Topic: TBA\n\nEach week\, we hold a relatively informal seminar
/discussion series\nwith an emphasis on extra-galactic and large-scale str
ucture\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 g
reater\ndetail than may be explained within the text of the article. To ai
d\nwith discussion\, only the article PDF is presented -- no\npowerpoint-s
tyle slides. Galread discussions are very friendly and\ninteractive.
DTSTART:20230403T150000Z
DTEND:20230403T160000Z
LAST-MODIFIED:20230313T154530Z
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-66
END:VEVENT
BEGIN:VEVENT
UID:30316234-3365-4263-a634-353364653335
DTSTAMP:20230604T064418Z
CREATED:20221209T181907Z
DESCRIPTION:Topic: Common Linear Patterns Are Rare\n\nSpeakers: Nina Kamčev
\n\nAffiliation: University of Zagreb\n\nSeveral classical results in Rams
ey theory (including famous theorems\nof Schur\, van der Waerden\, Rado) d
eal with finding monochromatic\nlinear patterns in two-colourings of the i
ntegers. Our topic will be\nquantitative extensions of such results. A l
inear system $L$ over\n$\mathbb{F}_q$ is _common_ if the number of monochr
omatic solutions\nto $L=0$ in any two-colouring of $\mathbb{F}_q^n$ is asy
mptotically at\nleast the expected number of monochromatic solutions in a
random\ntwo-colouring of $\mathbb{F}_q^n$. Motivated by existing results
for\nspecific systems (such as Schur triples and arithmetic progressions)\
,\nas well as extensive research on common and Sidorenko graphs\, the\nsys
tematic study of common systems of linear equations was recently\ninitiate
d by Saad and Wolf. Fox\, Pham and Zhao characterised common\nlinear equat
ions.\n\nI will talk about recent progress towards a classification of com
mon\nsystems of two or more linear equations. In particular\, any system
\ncontaining a four-term arithmetic progression is uncommon. This\nfollow
s from a more general result which allows us to deduce the\nuncommonness o
f a general system from certain properties of one- or\ntwo-equation subsys
tems.\n\nJoint work with Anita Liebenau and Natasha Morrison.
DTSTART:20230403T151500Z
DTEND:20230403T161500Z
LAST-MODIFIED:20230404T132003Z
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-537
END:VEVENT
BEGIN:VEVENT
UID:33663732-3830-4637-a634-653763306133
DTSTAMP:20230604T064418Z
CREATED:20230313T182134Z
DESCRIPTION:Topic: TBA
DTSTART:20230403T160000Z
DTEND:20230403T170000Z
LAST-MODIFIED:20230313T182148Z
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-80
END:VEVENT
BEGIN:VEVENT
UID:37653031-3035-4062-b038-643839363631
DTSTAMP:20230604T064418Z
CREATED:20221114T182144Z
DESCRIPTION:Topic: Simple Zeros of Modular Form L-Functions\n\nSpeakers: Al
exandre de Faveri\n\nAffiliation: Member\, School of Mathematics\n\nZeros
of L-functions have been extensively studied\, due to their close\nconnect
ion to arithmetic problems. Despite several precise conjectures\nabout the
ir behavior\, our unconditional understanding of them remains\nlimited. In
this talk we will discuss certain intrinsic properties of\nsuch zeros\, f
ocusing on what is known (in degrees one and two) about\ntheir accumulatio
n on the central line and their multiplicity. Here\nthe tools of analytic
number theory can give quantitative advances\,\nand we will show how to de
duce that there are many zeros of\nmultiplicity one for the L-function ass
ociated to a modular form.
DTSTART:20230403T180000Z
DTEND:20230403T190000Z
LAST-MODIFIED:20230421T171656Z
LOCATION:Simonyi Hall 101 and Remote Access - see Zoom link below
SUMMARY:Members' Colloquium
URL:https://www.ias.edu/math/events/members-colloquium-50
END:VEVENT
BEGIN:VEVENT
UID:61636564-3666-4530-b462-303839633163
DTSTAMP:20230604T064418Z
CREATED:20221207T184500Z
DESCRIPTION:Topic: Braid Stability for Periodic Orbits of Area-preserving S
urface Diffeomorphisms\n\nSpeakers: Michael Hutchings\n\nAffiliation: Univ
ersity of California\, Berkeley\n\nGiven an area-preserving surface diffeo
morphism\, what can one say\nabout the topological properties of its perio
dic orbits? In\nparticular\, a finite set of periodic orbits gives rise to
a braid in\nthe mapping torus\, and one can ask which isotopy classes of
braids\narise this way. We show that under some nondegeneracy hypotheses\,
the\nisotopy classes of braids that arise from finite sets of periodic\no
rbits are stable under Hamiltonian perturbations that are small with\nresp
ect to the Hofer metric. A corollary is that within a Hamiltonian\nisotopy
class\, the topological entropy is lower semicontinuous with\nrespect to
the Hofer metric. It is an open question whether analogous\nstatements hol
d for Reeb orbits on contact three-manifolds.
DTSTART:20230403T200000Z
DTEND:20230403T213000Z
LAST-MODIFIED:20230404T120551Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Joint IAS/Princeton University Symplectic Geometry Seminar
URL:https://www.ias.edu/math/events/joint-iasprinceton-university-symplecti
c-geometry-seminar-212
END:VEVENT
BEGIN:VEVENT
UID:66653864-3433-4366-b239-336533383734
DTSTAMP:20230604T064418Z
CREATED:20221206T175517Z
DESCRIPTION:Topic: Functions on the Commuting Scheme Via Langlands Duality
\n\nSpeakers: Zhiwei Yun\n\nAffiliation: Massachusetts Institute of Techno
logy\n\nI will explain how ideas from the (geometric) Langlands program he
lp\nsolve the following purely algebraic problem: describe the ring of\nco
njugation-invariant functions on the scheme of commuting pairs in a\ncompl
ex reductive group. The answer was known up to nilpotents\, and we\nshow t
hat this ring is indeed reduced. We also describe the ring of\ninvariant f
unctions on the derived version of the commuting scheme.\nThe proof brings
in seemingly unrelated objects such as the affine\nHecke category and cha
racter sheaves (of the Langlands dual group).\nThis is joint work with Pen
ghui Li and David Nadler.
DTSTART:20230403T200000Z
DTEND:20230403T213000Z
LAST-MODIFIED:20230420T173413Z
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-3
END:VEVENT
BEGIN:VEVENT
UID:63656162-3866-4135-a338-393930653662
DTSTAMP:20230604T064418Z
CREATED:20221209T183650Z
DESCRIPTION:Topic: Hausdorff Dimension Analogues of the Elekes - Ronyai The
orem and Related Problems\n\nSpeakers: Orit Raz\n\nAffiliation: Hebrew Uni
versity\; Visitor\, School of Mathematics\n\nIf $f$ is a real polynomial a
nd $A$ and $B$ are finite sets of\ncardinality $n$\, then Elekes and Ronya
i proved that either $f(A\times\nB)$ is much larger than $n$\, or $f$ has
a very specific form\n(essentially\, $f(x\,y)=x+y$). In the talk I will te
ll about an analogue\nof this problem\, where $A$ and $B$ are now infinite
subsets of\n$\mathcal{R}$\, each of Hausdorff dimension $\alpha$. In a re
cent\nresult\, joint with Josh Zahl\, we prove that in this case $f(A\time
s\nB)$ will have Hausdorff dimension at least $\alpha+c$\, where\n$c=c(\al
pha)>0$\, unless $f$ has the specific special form as above. \n\nI will ex
plain a connection between this problem and projection\ntheorems\, in the
spirit of Kaufman\, Bourgain\, and Shmerkin.\nConcretely\, I will tell abo
ut the following result: Given a set E in\nthe plane\, consider the set of
exceptional points\, for which the\npinned distance set $\Delta_p(E)$ has
small Hausdorff dimension\, that\nis\, close to ${\rm dim}(A)/2$. If this
set has a positive dimension\nthen it must have a special structure. As a
corollary one deduces a\ncertain instance of the pinned Falconer’s distan
ce problem.\n\nFor the proofs we apply a reduction to the discretized sett
ing\nintroduced by Katz and Tao. In the discretized setting\, our proofs a
re\ninspired by their counterparts in the finite case\, where the classica
l\nSzemeredi and Trotter incidence bound is replaced by a recent result\no
f Shmerkin. \n\nThe talk is based on a joint work with Josh Zahl.
DTSTART:20230404T143000Z
DTEND:20230404T163000Z
LAST-MODIFIED:20230501T172535Z
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-533
END:VEVENT
BEGIN:VEVENT
UID:38376238-3532-4530-a362-623635393739
DTSTAMP:20230604T064418Z
CREATED:20230125T141550Z
DESCRIPTION:The Bahcall Lunch follows the astrophysics colloquium lecture.
DTSTART:20230404T163000Z
DTEND:20230404T173000Z
LAST-MODIFIED:20230125T141613Z
LOCATION:Gravity Initiative space\, 4th floor of Jadwin Hall\, Princeton U.
SUMMARY:Institute for Advanced Study / Princeton University Bahcall Lunch
URL:https://www.ias.edu/sns/events/institute-advanced-study-princeton-unive
rsity-bahcall-lunch-43
END:VEVENT
BEGIN:VEVENT
UID:33653337-6333-4734-b737-306665386532
DTSTAMP:20230604T064418Z
CREATED:20230309T151740Z
DESCRIPTION:Topic: Polynomial Ergodic Theorems for Strongly Mixing Commutin
g Transformations\n\nSpeakers: Rigoberto Zelada\n\nAffiliation: University
of Maryland\n\nThe goal of this talk is to present new results dealing wi
th the\nasymptotic joint independence properties of commuting strongly mix
ing\ntransformations along polynomials. These results form natural strongl
y\nmixing counterparts to various weakly and mildly mixing polynomial\ner
godic theorems. A decisive role in the proofs is played by a new\nnotion o
f convergence that is adequate for dealing with strong mixing\nand\, as we
will see\, cannot be avoided while working with commuting\npolynomial act
ions. This talk is based on joint work with Vitaly\nBergelson.
DTSTART:20230404T180000Z
DTEND:20230404T190000Z
LAST-MODIFIED:20230418T145650Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Special Year Research Seminar
URL:https://www.ias.edu/math/events/special-year-research-seminar-27
END:VEVENT
BEGIN:VEVENT
UID:65303938-3263-4338-b765-333863323433
DTSTAMP:20230604T064418Z
CREATED:20230313T164352Z
DESCRIPTION:Topic: TBA
DTSTART:20230404T190000Z
DTEND:20230404T200000Z
LAST-MODIFIED:20230313T164405Z
LOCATION:Peyton Hall\, Grand Central
SUMMARY:Princeton University Computational Astrophysics Club
URL:https://www.ias.edu/sns/events/princeton-university-computational-astro
physics-club-12
END:VEVENT
BEGIN:VEVENT
UID:33373435-6166-4438-b138-326664666662
DTSTAMP:20230604T064418Z
CREATED:20230202T192224Z
DESCRIPTION:
DTSTART:20230404T190000Z
DTEND:20230404T210000Z
LAST-MODIFIED:20230504T131010Z
LOCATION:Rubenstein Commons | Meeting Room 5
SUMMARY:Reading Seminar on Perelman's Stability Theorem
URL:https://www.ias.edu/math/events/reading-seminar-perelmans-stability-the
orem-4
END:VEVENT
BEGIN:VEVENT
UID:63373333-6261-4838-b937-613463356139
DTSTAMP:20230604T064418Z
CREATED:20221116T193331Z
DESCRIPTION:Topic: Scattering for nonlinear wave equations\n\nSpeakers: Han
s Lindblad\n\nAffiliation: Johns Hopkins University\; Member\, School of M
athematics\n\nWe construct solutions with prescribed radiation fields for
wave\nequations with polynomially decaying sources close to the lightcone.
\nIn this setting\, which is motivated by semi-linear wave equations\nsati
sfying the weak null condition\, solutions to the forward problem\nhave a
logarithmic leading order term on the lightcone and non-trivial\nhomogeneo
us asymptotics in the interior of the lightcone. The backward\nscattering
solutions we construct from knowledge of the source and the\nradiation fie
ld at null infinity alone are given to second order by\nexplicit asymptoti
c solutions which satisfy novel matching conditions\nclose to the light co
ne. This requires a delicate analysis close to\nthe light cone of the forw
ard solution with sources on the light cone.\nWe also relate the asymptoti
cs of the radiation field towards\nspace-like infinity to explicit homogen
eous solutions in the exterior\nof the light cone for slowly polynomially
decaying data corresponding\nto mass\, charge and angular momentum in the
applications. The somewhat\nsurprising discovery is that these data can ca
use the same logarithmic\nradiation field as the source term. This require
s a delicate analysis\nof the forward homogeneous solution close to the li
ght cone using the\ninvertibility of the Funk transform. This is joint wor
k with Volker\nSchlue.
DTSTART:20230405T190000Z
DTEND:20230405T200000Z
LAST-MODIFIED:20230517T125909Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Analysis and Mathematical Physics
URL:https://www.ias.edu/math/events/analysis-and-mathematical-physics-8
END:VEVENT
BEGIN:VEVENT
UID:33393339-3436-4862-b835-646663343330
DTSTAMP:20230604T064418Z
CREATED:20230224T192335Z
DESCRIPTION:Topic: Weak lensing without shape noise\n\nSpeakers: Elisabeth
Krause\n\nAffiliation: University of Arizona\n\nWeak gravitational lensing
imprints a coherent distortion onto the\nobserved shapes of distant galax
ies. At the image level\, this\ngravitational shear is degenerate with the
intrinsic shape of\ngalaxies\, and the weak lensing signal-to-noise from
an individual\ngalaxy is of order 0.01. I will describe Kinematic Lensing\
, a new\ntechnique combining imaging and galaxy kinematics to measure weak
\nlensing with signal-to-noise of order one per galaxy.
DTSTART:20230406T150000Z
DTEND:20230406T160000Z
LAST-MODIFIED:20230306T183826Z
LOCATION:Bloomberg Lecture Hall
SUMMARY:Institute for Advanced Study Astrophysics Seminar
URL:https://www.ias.edu/sns/events/institute-advanced-study-astrophysics-se
minar-64
END:VEVENT
BEGIN:VEVENT
UID:34623839-6232-4035-b030-393766333065
DTSTAMP:20230604T064418Z
CREATED:20230327T130626Z
DESCRIPTION:Topic: What is an Inverse Problem?\n\nSpeakers: Malena Español
\n\nAffiliation: Arizona State University
DTSTART:20230406T173000Z
DTEND:20230406T183000Z
LAST-MODIFIED:20230330T125657Z
LOCATION:Simonyi Hall 101
SUMMARY:What Is .... ?
URL:https://www.ias.edu/math/events/what-7
END:VEVENT
BEGIN:VEVENT
UID:30653138-3666-4337-b432-653064393064
DTSTAMP:20230604T064418Z
CREATED:20221114T204251Z
DESCRIPTION:Topic: Subconvexity for L-functions on U(n) x U(n+1)\n\nSpeaker
s: Simon Marshall\n\nAffiliation: University of Wisconsin-Madison\n\nWe pr
ove this bound by first using the unitary Ichino-Ikeda formula of\nN. Harr
is to relate the central L-value to an automorphic period\nintegral. Ther
e is a `trivial' bound for this integral\, which turns\nout to correspond
to the convexity bound for the L-value if the test\nvector is chosen corre
ctly. We are able to improve the bound for the\nperiod integral using a t
echnique called arithmetic amplification\,\nwhich uses the action of the H
ecke operators\, and this yields a\nsubconvex bound.
DTSTART:20230406T203000Z
DTEND:20230406T213000Z
LAST-MODIFIED:20230505T144339Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Joint IAS/PU Number Theory Seminar
URL:https://www.ias.edu/math/events/joint-iaspu-number-theory-seminar-21
END:VEVENT
BEGIN:VEVENT
UID:66346564-3966-4866-b932-376534356662
DTSTAMP:20230604T064418Z
CREATED:20221116T194632Z
DESCRIPTION:Topic: Topic #1 (Kavvadias): Conformal removability of non-simp
le Schramm-Loewner evolutions\; Topic #2 (Narayanan): Large deviations for
random hives and the spectrum of the sum of two random matrices.\n\nSpeak
ers: Hariharan Narayanan\, Konstantinos Kavvadias\n\nAffiliation: Tata Ins
titute of Fundamental Research\; Cambridge University\n\nTopic #1 (Kavvadi
as): We consider the Schramm-Loewner evolution\n(SLE_{kappa}) for kappa in
(4\,8)\, which is the regime that the curve\nis self-intersecting but not
space-filling. We let K be the set of\nkappa in (4\,8) for which the adja
cency graph of connected components\nof the complement of an SLE_{kappa} i
s almost surely connected\, in the\nsense that for every pair of complemen
tary components U\,V there exist\ncomplementary components U_1\,...\,U_n w
ith U_1 = U\, U_n = V\, and the\nboundaries of U_i and U_{i+1} intersect f
or each i between 1 and n-1.\nWe show that the range of an SLE_{kappa} for
kappa in K is almost\nsurely conformally removable\, which answers a ques
tion of Sheffield.\nAs a step in the proof\, we construct the canonical co
nformally\ncovariant volume measure on the cut points of an SLE_{kappa} fo
r kappa\nin (4\,8) and establish a precise upper bound on the measure that
it\nassigns to any Borel set in terms of its diameter. This is joint work
\nwith Jason Miller and Lukas Schoug.\n\nTopic #2 (Narayanan): \n\nHives\,
as defined by Knutson and Tao\, are discrete concave functions\non a tria
ngular grid on an equilateral triangle of side n. It is known\nthrough the
work of Knutson and Tao that the probability distribution\nof the spectru
m of the sum of two independent random matrices with\nunitarily invariant
distributions and given spectra can be expressed\nin terms of certain marg
inals of random hives.\n\n \n\nWe prove the existence of a surface tension
function sigma depending\non the Hessian\, for continuum limits of random
hives\, and prove a\nlarge deviation principle for the large n limit of r
andom hives in\nterms of sigma. Through the aforementioned connection\, we
also obtain\na large deviation principle for the spectrum of the sum of t
wo random\nmatrices with given spectra.\n\n \n\nThis is joint work with Sc
ott Sheffield.
DTSTART:20230407T141500Z
DTEND:20230407T161500Z
LAST-MODIFIED:20230502T130547Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Probability Seminar
URL:https://www.ias.edu/math/events/probability-seminar-19
END:VEVENT
BEGIN:VEVENT
UID:61323233-6237-4566-a435-636432333331
DTSTAMP:20230604T064418Z
CREATED:20221219T161058Z
DESCRIPTION:Topic: The Correspondence between the orientalist and manuscrip
t dealer Abraham Shalom Yahuda (d. 1951) and the Cairo-based publisher and
manuscript dealer Mohammad Amin Khanji (d. 1938)\n\nSpeakers: Garrett A.
Davidson\n\nAffiliation: College of Charleston\n\nThe object of this lectu
re series is to bring together scholars and\nlibrarians engaged with colle
ctions of correspondences and/or include\nrelated projects that use approp
riate digital tools to map and analyze\nsuch corpora. It is hosted by Sabi
ne Schmidtke (NES@IAS) and María\nMercedes Tuya (Digital Scholarship @IAS)
. \n\nFor additional information on this event and the lecture\nseries vis
it:\n https://albert.ias.edu/20.500.12111/8044.\n\n
DTSTART:20230407T160000Z
DTEND:20230407T170000Z
LAST-MODIFIED:20230420T174404Z
LOCATION:Zoom event
SUMMARY:Scholarly Correspondences Among Orientalists: A Series of Lectures
URL:https://www.ias.edu/hs/events/scholarly-correspondences-among-orientali
sts-series-lectures-6
END:VEVENT
BEGIN:VEVENT
UID:37646534-3965-4435-b266-396636303434
DTSTAMP:20230604T064418Z
CREATED:20230303T150818Z
DESCRIPTION:Topic: TBA
DTSTART:20230407T163000Z
DTEND:20230407T173000Z
LAST-MODIFIED:20230303T150836Z
LOCATION:Dome Room\, Peyton Hall or Zoom
SUMMARY:Princeton University Astroplasmas Seminar
URL:https://www.ias.edu/sns/events/princeton-university-astroplasmas-semina
r-44
END:VEVENT
BEGIN:VEVENT
UID:65363136-3862-4264-a238-633031653733
DTSTAMP:20230604T064418Z
CREATED:20221014T133716Z
DESCRIPTION:Topic: TBD
DTSTART:20230407T170000Z
DTEND:20230407T193000Z
LAST-MODIFIED:20230502T130617Z
LOCATION:Rubenstein Commons | Meeting Room 5
SUMMARY:Milnor Conjecture Learning Seminar
URL:https://www.ias.edu/math/events/milnor-conjecture-learning-seminar-14
END:VEVENT
BEGIN:VEVENT
UID:62316233-3666-4963-b061-393763343966
DTSTAMP:20230604T064418Z
CREATED:20230313T154538Z
DESCRIPTION:Topic: TBA\n\nEach week\, we hold a relatively informal seminar
/discussion series\nwith an emphasis on extra-galactic and large-scale str
ucture\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 g
reater\ndetail than may be explained within the text of the article. To ai
d\nwith discussion\, only the article PDF is presented -- no\npowerpoint-s
tyle slides. Galread discussions are very friendly and\ninteractive.
DTSTART:20230410T150000Z
DTEND:20230410T160000Z
LAST-MODIFIED:20230313T154552Z
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-67
END:VEVENT
BEGIN:VEVENT
UID:66343864-3236-4533-b665-383233643735
DTSTAMP:20230604T064418Z
CREATED:20221209T182100Z
DESCRIPTION:Topic: Quantum Error Correction\, Systolic Geometry\, and Proba
bilistic Embeddings\n\nSpeakers: Elia Portnoy\n\nAffiliation: Massachusett
s Institute of Technology\n\nA CSS quantum code $\mathcal{C} = (W_1\, W_2)
$ is a pair of orthogonal\nsubspaces in $\mathbb{F}_2^n$. The distance of
$\mathcal{C}$ is the\nsmallest hamming weight of a vector in $W_1^{\perp}-
W_2$ or\n$W_2^{\perp}-W_1$. A large distance roughly means that the quantu
m\ncode can correct many errors that affect the information stored in\nit.
\n\nIn this talk we show how to construct a CSS quantum code that can\nb
e implemented in a 3-dimensional lattice and has near optimal\ndistance. A
long the way we will discuss a connection between\nquantum codes and systo
lic geometry made by Freedman and Hastings\, as\nwell as a probabilistic e
mbedding result of Gromov and Guth.
DTSTART:20230410T151500Z
DTEND:20230410T161500Z
LAST-MODIFIED:20230501T172611Z
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-538
END:VEVENT
BEGIN:VEVENT
UID:37613736-3930-4063-b333-326439383363
DTSTAMP:20230604T064418Z
CREATED:20230313T182159Z
DESCRIPTION:Topic: TBA
DTSTART:20230410T160000Z
DTEND:20230410T170000Z
LAST-MODIFIED:20230313T182213Z
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-81
END:VEVENT
BEGIN:VEVENT
UID:63326561-3034-4635-b438-353935313633
DTSTAMP:20230604T064418Z
CREATED:20221114T182716Z
DESCRIPTION:Topic: Cohomology and arithmetic of some mapping spaces\n\nSpea
kers: Oishee Banerjee\n\nAffiliation: Member\, School of Mathematics\n\nHo
w do we describe the topology of the space of all nonconstant\nholomorphic
(respectively\, algebraic) maps F: X--->Y from one\ncomplex manifold (re
spectively\, variety) to another? What is\, for\nexample\, its cohomology?
Such problems are old but difficult\, and are\nnontrivial even when the d
omain and range are Riemann spheres. In this\ntalk I will explain how thes
e problems relate to other parts of\nmathematics such as spaces of polynom
ials\, arithmetic (e.g the\ngeometric Batyerv-Manin type conjectures)\, al
gebraic geometry (e.g.\nmoduli spaces of elliptic fibrations\, of smooth s
ections of a line\nbundle\, etc) and if time permits\, homotopy theory (e.
g. derived\nindecomposables of modules over monoids). I will show how one
can\nfruitfully attack such problems by incorporating techniques from\ntop
ology to the holomorphic/algebraic world (e.g. by constructing a\nnew spec
tral sequence).
DTSTART:20230410T180000Z
DTEND:20230410T190000Z
LAST-MODIFIED:20230421T171621Z
LOCATION:Simonyi Hall 101 and Remote Access - see Zoom link below
SUMMARY:Members' Colloquium
URL:https://www.ias.edu/math/events/members-colloquium-49
END:VEVENT
BEGIN:VEVENT
UID:39643061-3634-4138-b939-366361313232
DTSTAMP:20230604T064418Z
CREATED:20221207T163721Z
DESCRIPTION:Topic: Two-term Weyl Laws and Homeomorphism Groups of Surfaces
\n\nSpeakers: Daniel Anthony Cristofaro-Gardiner\n\nAffiliation: Universit
y of Maryland\; von Neumann Fellow\, School of Mathematics \n\nWhile much
is known about the algebraic structure of the group of\nvolume preserving
homeomorphisms of a manifold when the dimension of\nthe manifold is at lea
st three\, the structure of these groups in the\ntwo-dimensional case has
long been mysterious. I will explain some\nrecent progress in understandin
g the two-dimensional case\, while also\nhighlighting some mysteries that
remain. More precisely\, I will\ndiscuss my recent joint work in arXiv:220
6.10749\, finding a plethora\nof new normal subgroups by studying the asym
ptotics of ``link spectral\ninvariants'\; we answer in particular old ques
tions of Oh-Mueller and\nFathi. A conjectural 'two-term Weyl law' plays a
key role in our\narguments\, and I will explain this conjecture along with
some partial\nprogress.
DTSTART:20230410T200000Z
DTEND:20230410T213000Z
LAST-MODIFIED:20230405T130137Z
LOCATION:Fine 314 and Remote Access
SUMMARY:Joint IAS/Princeton University Symplectic Geometry Seminar
URL:https://www.ias.edu/math/events/joint-iasprinceton-university-symplecti
c-geometry-seminar-207
END:VEVENT
BEGIN:VEVENT
UID:37663731-6162-4539-b739-643132376336
DTSTAMP:20230604T064418Z
CREATED:20221116T182213Z
DESCRIPTION:Topic: Around Logarithmic Prismatic Chomology\n\nSpeakers: Teru
hisa Koshikawa\n\nAffiliation: Research Institute for Mathematical Science
s\n\nI will recall my approach to log prismatic cohomology and discuss som
e\nresults on them (partly joint with Zijian Yao). I will also try to\noff
er a stacky perspective.
DTSTART:20230410T203000Z
DTEND:20230410T220000Z
LAST-MODIFIED:20230502T130649Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:IAS/Princeton Arithmetic Geometry Seminar
URL:https://www.ias.edu/math/events/iasprinceton-arithmetic-geometry-semina
r-2
END:VEVENT
BEGIN:VEVENT
UID:39306132-3066-4334-a331-326261653166
DTSTAMP:20230604T064418Z
CREATED:20221209T183715Z
DESCRIPTION:Topic: Updates on the Lipschitz Extension Problem\n\nSpeakers:
Assaf Naor\n\nAffiliation: Princeton University\n\nThe Lipschitz extension
problem is the following basic “meta\nquestion” in metric geometry: Supp
ose that X and Y are metric\nspaces and A is a subset of X. What is the sm
allest K such that every\nLipschitz function f:A\to Y has an extension F:X
\to Y whose Lipschitz\nconstant is at most K times the Lipschitz constant
of f. Such\nextension phenomena are rare\, but when they are available the
y are\nuseful for various applications\, ranging from pure mathematics to
\napproximation theory and algorithms. The Lipschitz extension problem\nha
s attracted the efforts of many mathematicians over the past\ncentury\, an
d the known results introduced a variety of valuable ideas.\nIn this talk
we will explain some of the main achievements\, ideas\,\nchallenges and m
ysteries in this direction\, as well as recent advances\n(both recently pu
blished and forthcoming). Among the topics that we\nwill cover are connect
ions to clustering\, dual formulations\, relations\nto reverse isoperimetr
y\, and approximate versions.
DTSTART:20230411T143000Z
DTEND:20230411T163000Z
LAST-MODIFIED:20230501T172649Z
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-534
END:VEVENT
BEGIN:VEVENT
UID:34613134-6366-4639-b333-316130656266
DTSTAMP:20230604T064418Z
CREATED:20230125T141619Z
DESCRIPTION:The Bahcall Lunch follows the astrophysics colloquium lecture.
DTSTART:20230411T163000Z
DTEND:20230411T173000Z
LAST-MODIFIED:20230125T141635Z
LOCATION:Gravity Initiative space\, 4th floor of Jadwin Hall\, Princeton U.
SUMMARY:Institute for Advanced Study / Princeton University Bahcall Lunch
URL:https://www.ias.edu/sns/events/institute-advanced-study-princeton-unive
rsity-bahcall-lunch-44
END:VEVENT
BEGIN:VEVENT
UID:32353662-3030-4363-b632-323135623735
DTSTAMP:20230604T064418Z
CREATED:20230223T142431Z
DESCRIPTION:Topic: On Elliott's Conjecture and Applications\n\nSpeakers: Ol
eksiy Klurman\n\nAffiliation: University of Bristol\n\nLink to Abstract [/
media/219836]
DTSTART:20230411T180000Z
DTEND:20230411T190000Z
LAST-MODIFIED:20230525T131955Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Special Year Research Seminar
URL:https://www.ias.edu/math/events/special-year-research-seminar-24
END:VEVENT
BEGIN:VEVENT
UID:63663061-3963-4738-a535-313039383037
DTSTAMP:20230604T064418Z
CREATED:20230313T164411Z
DESCRIPTION:Topic: TBA
DTSTART:20230411T190000Z
DTEND:20230411T200000Z
LAST-MODIFIED:20230313T164424Z
LOCATION:Peyton Hall\, Grand Central
SUMMARY:Princeton University Computational Astrophysics Club
URL:https://www.ias.edu/sns/events/princeton-university-computational-astro
physics-club-13
END:VEVENT
BEGIN:VEVENT
UID:34383832-6332-4062-b036-373730313936
DTSTAMP:20230604T064418Z
CREATED:20230202T192309Z
DESCRIPTION:
DTSTART:20230411T190000Z
DTEND:20230411T210000Z
LAST-MODIFIED:20230504T130910Z
LOCATION:Rubenstein Commons | Meeting Room 5
SUMMARY:Reading Seminar on Perelman's Stability Theorem
URL:https://www.ias.edu/math/events/reading-seminar-perelmans-stability-the
orem-5
END:VEVENT
BEGIN:VEVENT
UID:63373165-3639-4636-b438-653932326233
DTSTAMP:20230604T064418Z
CREATED:20230223T142632Z
DESCRIPTION:Topic: The Factorial Function and Generalizations\, Revisited.
\n\nSpeakers: Jeffrey Lagarias\n\nAffiliation: University of Michigan\n\nI
n 1996 Manjul Barghava introduced a notion of P-orderings for\narbitrary s
ets S of a Dedekind domain\, with respect to a prime ideal\nP\, which defi
ned associated invariants called P-sequences. He combined\nthese invariant
s to define generalized factorials and binomial\ncoefficients associated t
o the subset S. These factorials were used in\ncharacterizing rings of pol
ynomials that are integer-valued on S.\nFurther generalizations of P-order
ings by Bhargava in 2009 (with more\nparameters) have many applications. T
his talk defines analogous\ninvariants for all proper ideals B of a Dedeki
nd domain\, called\nB-sequences\, and extends the notion of generalized fa
ctorials and\nbinomial coefficients to this setting. (This is joint work w
ith Wijit\nYangjit (U. Michigan)) \n
DTSTART:20230411T193000Z
DTEND:20230411T203000Z
LAST-MODIFIED:20230525T132029Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Special Year Research Seminar
URL:https://www.ias.edu/math/events/special-year-research-seminar-25
END:VEVENT
BEGIN:VEVENT
UID:66623032-3131-4065-b739-386164313566
DTSTAMP:20230604T064418Z
CREATED:20230313T170225Z
DESCRIPTION:Topic: TBA
DTSTART:20230411T233000Z
DTEND:20230412T013000Z
LAST-MODIFIED:20230313T170250Z
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-19
END:VEVENT
BEGIN:VEVENT
UID:34313662-3163-4665-b365-333836616561
DTSTAMP:20230604T064418Z
CREATED:20221116T193358Z
DESCRIPTION:Topic: Generalized Entropy Methods and Stability in Sobolev and
Related Inequalities\n\nSpeakers: Jean Dolbeault\n\nAffiliation: Universi
té Paris Dauphine\n\nThis lecture is devoted to a survey on explicit stabi
lity results in\nGagliardo-Nirenberg-Sobolev and logarithmic Sobolev inequ
alities.\nGeneralized entropy methods based on carré du champ computations
and\nnonlinear diffusion flows can be used for proving inequalities in\ns
harp form. Under restrictions on the functions\, these methods also\nprovi
de remainder terms which control various distances to the set of\noptimal
functions. A result without restriction will also be presented\nfor some S
obolev and logarithmic Sobolev inequalities.
DTSTART:20230412T190000Z
DTEND:20230412T200000Z
LAST-MODIFIED:20230502T130720Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Analysis and Mathematical Physics
URL:https://www.ias.edu/math/events/analysis-and-mathematical-physics-1
END:VEVENT
BEGIN:VEVENT
UID:32366338-6263-4465-b364-636165323664
DTSTAMP:20230604T064418Z
CREATED:20230119T220755Z
DESCRIPTION:Topic: William Thomson\, Oliver Heaviside and the Transatlantic
Cable\n\nSpeakers: Mark Goresky\n\nAffiliation: Member\, School of Mathem
atics \n\nAs telegraph lines proliferated through Europe and North America
in\nthe 1850s\, plans were drawn up for a transatlantic telegraph cable.
\nExtended telegraph lines were modelled by William Thomson (Lord\nKelvin)
\, who showed that a transatlantic cable could not possibly\nwork. A bitt
er dispute arose between Thomson and Wildman Whitehouse\,\nwho ended up de
stroying the first transatlantic cable in 1858. \nAlthough other cables we
re eventually laid it was not until 1892 that\nthe cantankerous self-taugh
t genius\, Oliver Heaviside\, understood the\nbehavior of long cables and
prescribed their design parameters.
DTSTART:20230412T220000Z
DTEND:20230413T000000Z
LAST-MODIFIED:20230403T134755Z
LOCATION:Rubenstein Commons | Meeting Room 5
SUMMARY:Mathematical Conversations
URL:https://www.ias.edu/math/events/mathematical-conversations-259
END:VEVENT
BEGIN:VEVENT
UID:30343330-6163-4034-a534-313962323036
DTSTAMP:20230604T064418Z
CREATED:20230224T192446Z
DESCRIPTION:Topic: TBA\n\nSpeakers: Mehrdad Mirbabayi
DTSTART:20230413T150000Z
DTEND:20230413T160000Z
LAST-MODIFIED:20230224T192617Z
LOCATION:Bloomberg Lecture Hall
SUMMARY:Institute for Advanced Study Astrophysics Seminar
URL:https://www.ias.edu/sns/events/institute-advanced-study-astrophysics-se
minar-65
END:VEVENT
BEGIN:VEVENT
UID:61636537-3139-4366-a635-376130643366
DTSTAMP:20230604T064418Z
CREATED:20230313T173733Z
DESCRIPTION:Topic: Probing the 3D Ejecta Structure of Young Type Ia Superno
va Remnants with High-Resolution Grating X-ray Spectroscopy\n\nSpeakers: M
atthew Millard\n\nAffiliation: University of Iowa
DTSTART:20230413T180000Z
DTEND:20230413T190000Z
LAST-MODIFIED:20230313T173830Z
LOCATION:Serin Hall Rm W330\, Rutgers and Zoom
SUMMARY:Rutgers University Astrophysics Seminar
URL:https://www.ias.edu/sns/events/rutgers-university-astrophysics-seminar-
27
END:VEVENT
BEGIN:VEVENT
UID:63383861-3039-4330-b239-333232663833
DTSTAMP:20230604T064418Z
CREATED:20221114T203610Z
DESCRIPTION:Topic: Arithmetic of critical p-adic L-functions\n\nSpeakers: K
azim Buyukboduk\n\nAffiliation: University College Dublin\n\nIn joint work
with Denis Benois\, we give an étale construction of\nBellaïche's p-adic
L-functions about θ-critical points on the\nColeman–Mazur eigencurve. I wi
ll discuss applications of this\nconstruction towards leading term formula
e in terms of p-adic\nregulators on what we call the thick Selmer groups\,
which come\nattached to the infinitesimal deformation at the said θ-criti
cal\npoint along the eigencurve\, and a Λ-adic L-invariant. Besides our\ni
nterpolation of the Beilinson–Kato elements about this point\, the\nkey in
put to prove the interpolative properties of this p-adic\nL-function is a
new p-adic Hodge-theoretic 'eigenspace-transition via\ndifferentiation' pr
inciple.\n\n \n\n
DTSTART:20230413T203000Z
DTEND:20230413T213000Z
LAST-MODIFIED:20230421T172246Z
LOCATION:Princeton University\, Fine Hall 214
SUMMARY:Joint IAS/PU Number Theory Seminar
URL:https://www.ias.edu/math/events/joint-iaspu-number-theory-seminar-17
END:VEVENT
BEGIN:VEVENT
UID:66393438-6132-4630-a164-633939643235
DTSTAMP:20230604T064418Z
CREATED:20221205T205508Z
DESCRIPTION:Topic: Quivers\, Flow Trees and Log Curves\n\nSpeakers: Pierri
ck Bousseau\n\nAffiliation: University of Georgia\n\nDonaldson-Thomas (DT)
invariants of a quiver with potential can be\nexpressed in terms of simpl
er attractor DT invariants by a universal\nformula. The coefficients in th
is formula are calculated\ncombinatorially using attractor flow trees. In
joint work with Arguz\n(arXiv:2302.02068)\, we prove that these coefficien
ts are genus 0 log\nGromov-Witten invariants of d-dimensional toric variet
ies\, where d is\nthe number of vertices of the quiver. This result follow
s from a\nlog-tropical correspondence theorem which relates (d-2)-dimensio
nal\nfamilies of tropical curves obtained as universal deformations of\nat
tractor flow trees\, and rational log curves in toric varieties.
DTSTART:20230414T131500Z
DTEND:20230414T144500Z
LAST-MODIFIED:20230414T114545Z
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-115
END:VEVENT
BEGIN:VEVENT
UID:39646230-3038-4661-b166-643365646264
DTSTAMP:20230604T064418Z
CREATED:20221116T194656Z
DESCRIPTION:Topic: Topic #1 (Wang): Holography of the Loewner Energy\; Topi
c #2 (Hutchcroft): Critical Behaviour in Long-Range and Hierarchical Perco
lation\n\nSpeakers: Yilin Wang\; Tom Hutchcroft\n\nAffiliation: Institut d
es Hautes Études Scientifiques\; California Institute of Technology\n\nTop
ic #1 (Wang): The Loewner energy is a Möbius invariant quantity\nthat meas
ures the roundness of Jordan curves on the Riemann sphere. It\narises from
large deviation deviations of SLE0+ and is also a Kähler\npotential on th
e Weil-Petersson Teichmüller space. Motivated by\nAdS/CFT correspondence a
nd the fact that Möbius transformations\nextend to isometries of the hyper
bolic 3-space $H^3$\, we look for\nquantities defined geometrically in $H^
3$ which equal the Loewner\nenergy of a curve in the conformal boundary. W
e show that the Loewner\nenergy equals the renormalized volume of a subman
ifold of $H^3$\nconstructed using the Epstein surfaces associated to the h
yperbolic\nmetric on both sides of the curve. This is a work in progress w
ith\nMartin Bridgeman (Boston College)\, Ken Bromberg (Utah)\, and Franco
\nVargas-Pallete (Yale).\n\nTopic #2 (Hutchcroft): Statistical mechanics m
odels undergoing a\nphase transition often exhibit rich\, fractal-like beh
aviour at their\ncritical points\, which are described in part by critical
exponents\,\nthe indices governing the power-law growth or decay of vario
us\nquantities of interest. These exponents are expected to depend on the
\ndimension but not on the microscopic details of the model such as the\nc
hoice of lattice. After much progress over the last 30 years\, we now\nund
erstand two-dimensional and high-dimensional models rather well\,\nbut int
ermediate dimensions such as three remain mysterious. I will\ndiscuss thes
e issues in the context of long-range and hierarchical\npercolation\, and
in particular how we can now compute some critical\nexponents for the hier
archical model in all dimensions.
DTSTART:20230414T141500Z
DTEND:20230414T161500Z
LAST-MODIFIED:20230502T130747Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Probability Seminar
URL:https://www.ias.edu/math/events/probability-seminar-24
END:VEVENT
BEGIN:VEVENT
UID:62306661-3961-4431-a637-363731396266
DTSTAMP:20230604T064418Z
CREATED:20221219T161312Z
DESCRIPTION:Topic: POSTPONED: Orientalists and 'Ulama' in Egypt in the 20th
Century\n\nSpeakers: Ahmed Khan\n\nAffiliation: American University in Ca
iro\n\nDue to unforeseen circumstances this lecture has\nbeen POSTPONED un
til the second iteration of this Lecture Series in\nSpring 2024. Details o
f this and the other lectures will be announced\nlater in the year here ht
tps://www.ias.edu/hs/islamic-world/events. \n\nThe object of this lecture
series is to bring together scholars and\nlibrarians engaged with collecti
ons of correspondences and/or include\nrelated projects that use appropria
te digital tools to map and analyze\nsuch corpora. It is hosted by Sabine
Schmidtke (NES@IAS) and María\nMercedes Tuya (Digital Scholarship @IAS).
\n\nFor additional information on this event and the lecture\nseries visit
:\n https://albert.ias.edu/20.500.12111/8044.\n\n \n\n
DTSTART:20230414T160000Z
DTEND:20230414T170000Z
LAST-MODIFIED:20230412T171020Z
LOCATION:Zoom event
SUMMARY:Scholarly Correspondences Among Orientalists: A Series of Lectures
URL:https://www.ias.edu/hs/events/scholarly-correspondences-among-orientali
sts-series-lectures-7
END:VEVENT
BEGIN:VEVENT
UID:65393832-3861-4039-a566-663331643331
DTSTAMP:20230604T064418Z
CREATED:20230303T150850Z
DESCRIPTION:Topic: TBA
DTSTART:20230414T163000Z
DTEND:20230414T173000Z
LAST-MODIFIED:20230303T150909Z
LOCATION:Dome Room\, Peyton Hall or Zoom
SUMMARY:Princeton University Astroplasmas Seminar
URL:https://www.ias.edu/sns/events/princeton-university-astroplasmas-semina
r-45
END:VEVENT
BEGIN:VEVENT
UID:65396362-3537-4032-b766-306663306237
DTSTAMP:20230604T064418Z
CREATED:20221014T133752Z
DESCRIPTION:Topic: TBD
DTSTART:20230414T170000Z
DTEND:20230414T193000Z
LAST-MODIFIED:20230502T130816Z
LOCATION:Rubenstein Commons | Meeting Room 5
SUMMARY:Milnor Conjecture Learning Seminar
URL:https://www.ias.edu/math/events/milnor-conjecture-learning-seminar-15
END:VEVENT
BEGIN:VEVENT
UID:35356630-3266-4162-a233-646430326263
DTSTAMP:20230604T064418Z
CREATED:20200110T181909Z
DESCRIPTION:
DTSTART:20230414T220000Z
DTEND:20230414T220000Z
LAST-MODIFIED:20210104T030312Z
LOCATION:
SUMMARY:IAS School of Mathematics Term II Ends
URL:https://www.ias.edu/math/events/ias-school-mathematics-term-ii-ends-1
END:VEVENT
BEGIN:VEVENT
UID:31383131-3264-4561-a436-666232613332
DTSTAMP:20230604T064418Z
CREATED:20230313T154946Z
DESCRIPTION:Topic: Improved Tomographic Binning of 3x2pt Lens Samples: Neur
al Network Classifiers and Optimal Bin Assignments\n\nSpeakers: Irene Mosk
owitz\n\nAffiliation: Rutgers University\n\nEach week\, we hold a relative
ly informal seminar/discussion series\nwith an emphasis on extra-galactic
and large-scale structure\nastrophysics.\n\nDuring Galread a leader/visito
r presents a recent paper to the\ndiscussion group. The PDF of the paper i
s projected onto a large\nscreen\, and a guest explains the paper\, sectio
n 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:20230417T150000Z
DTEND:20230417T160000Z
LAST-MODIFIED:20230414T192045Z
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-68
END:VEVENT
BEGIN:VEVENT
UID:34653361-3363-4133-b162-633463653239
DTSTAMP:20230604T064418Z
CREATED:20230105T142917Z
DESCRIPTION:Topic: Unit and Distinct Distances in Typical Norms\n\nSpeakers
: Noga Alon\n\nAffiliation: Princeton University\n\nErdős' unit distance p
roblem and his related distinct distances\nproblem are arguably the best k
nown open problems in discrete\ngeometry. \n\nThey ask for the maximum pos
sible number of unit distances\, and the\nminimum possible number of disti
nct distances\, respectively\,\ndetermined by n points in the Euclidean pl
ane. The same problems for\nnormed spaces other than the Euclidean plane h
ave been raised in the\n1980s by Ulam and Erdős and attracted a lot of att
ention over the\nyears. We give an essentially tight answer to both questi
ons for\nalmost all norms on $R^d$\, in a certain Baire categoric sense.\n
\nThe results settle\, in a strong and somewhat surprising form\, problems
\nand conjectures of Brass\, of Matousek\, and of Brass-Moser-Pach. The\n
proofs combine combinatorial and geometric ideas with tools from\nLinear A
lgebra\, Topology and Algebraic Geometry.\n\nJoint work with Matija Bucic
and Lisa Sauermann.
DTSTART:20230417T151500Z
DTEND:20230417T161500Z
LAST-MODIFIED:20230501T172718Z
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-541
END:VEVENT
BEGIN:VEVENT
UID:62326262-3438-4136-b234-346462393565
DTSTAMP:20230604T064418Z
CREATED:20230313T182220Z
DESCRIPTION:Topic: General Discussion
DTSTART:20230417T160000Z
DTEND:20230417T170000Z
LAST-MODIFIED:20230414T192208Z
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-82
END:VEVENT
BEGIN:VEVENT
UID:37393639-6662-4031-a131-336633353931
DTSTAMP:20230604T064418Z
CREATED:20230414T192250Z
DESCRIPTION:Topic: Cosmology with the IGM and latest results from DESI\n\nS
peakers: Satya Goncho A Goncho\n\nAffiliation: Lawrence Berkeley National
Laboratory
DTSTART:20230417T163000Z
DTEND:20230417T180000Z
LAST-MODIFIED:20230414T193051Z
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-56
END:VEVENT
BEGIN:VEVENT
UID:31663331-3136-4539-b730-646238633131
DTSTAMP:20230604T064418Z
CREATED:20221114T182829Z
DESCRIPTION:Topic: Classification of Smooth Actions by Higher Rank Lattices
in Critical Dimensions\n\nSpeakers: Zhiren Wang\n\nAffiliation: Pennsylva
nia State University\; von Neumann Fellow\, School of Mathematics\n\nThe Z
immer program asks how lattices in higher rank semisimple Lie\ngroups may
act smoothly on compact manifolds. Below a certain critical\ndimension\, t
he recent proof of the Zimmer conjecture by\nBrown-Fisher-Hurtado asserts
that\, for SL(n\,R) with n\geq 3 or other\nhigher rank R-split semisimple
Lie groups\, the action is trivial up to\na finite group action. In this t
alk\, we will explain what happens in\nthe critical dimension for higher r
ank R-split semisimple Lie groups.\nFor example\, non-trivial actions by l
attices in SL(n\,R)\, n\geq 3\, on\n(n-1)-dimensional manifolds are isomor
phic to the standard action on\nRP^{n-1} up to a finite quotient group and
a finite covering. This is\na joint work with Aaron Brown and Federico Ro
driguez Hertz.
DTSTART:20230417T180000Z
DTEND:20230417T190000Z
LAST-MODIFIED:20230421T171547Z
LOCATION:Simonyi Hall 101 and Remote Access - see Zoom link below
SUMMARY:Members' Colloquium
URL:https://www.ias.edu/math/events/members-colloquium-45
END:VEVENT
BEGIN:VEVENT
UID:31393030-3262-4430-b338-353732376461
DTSTAMP:20230604T064418Z
CREATED:20230303T140748Z
DESCRIPTION:Topic: TBA
DTSTART:20230417T190000Z
DTEND:20230417T200000Z
LAST-MODIFIED:20230303T140813Z
LOCATION:Zoom and Peyton 025
SUMMARY:Princeton University HSC+PFS+Rubin Discussions
URL:https://www.ias.edu/sns/events/princeton-university-hscpfsrubin-discuss
ions-7
END:VEVENT
BEGIN:VEVENT
UID:64373430-6564-4432-a561-303635626235
DTSTAMP:20230604T064418Z
CREATED:20221207T191405Z
DESCRIPTION:Topic: Exotic contact structures on $\mathbb{R}^n$\n\nSpeakers:
Joseph Helfer\n\nAffiliation: University of Southern California\n\nContac
t homology is a Floer-type invariant for contact manifolds\, and\nis a par
t of Symplectic Field Theory. One of its first applications\nwas the exist
ence of exotic contact structures on spheres. Originally\,\ncontact homolo
gy was defined only for closed contact manifolds. We\nwill describe how to
extend it to open contact manifolds that are\n'convex'. As an application
\, we prove the existence of (infinitely\nmany) exotic contact structures
on $\mathbb{R}^{2n+1}$ for all\n$n>1$.This is joint with François-Simon Fa
uteux-Chapleau.
DTSTART:20230417T200000Z
DTEND:20230417T213000Z
LAST-MODIFIED:20230418T114128Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Joint IAS/Princeton University Symplectic Geometry Seminar
URL:https://www.ias.edu/math/events/joint-iasprinceton-university-symplecti
c-geometry-seminar-214
END:VEVENT
BEGIN:VEVENT
UID:34333636-3464-4431-b437-313534383966
DTSTAMP:20230604T064418Z
CREATED:20230414T133816Z
DESCRIPTION:Topic: An Application of Motivic Stable Homotopy Computations i
n Classical Theory\n\nSpeakers: Hana Jia Kong\n\nAffiliation: Member\, Sch
ool of Mathematics \n\nMotivic homotopy theory is a powerful framework for
understanding\nalgebraic varieties and the associated algebraic objects.
Moreover\,\ncomputations in the motivic stable homotopy category can also
assist\nin the computation of stable homotopy groups of spheres.\n\nIn thi
s talk\, we will discuss the computation of motivic stable\nhomotopy group
s and their applications in classical computations.\nSpecifically\, we wil
l discuss an example of complex motivic\napplications in classical theory\
, the Adams spectral sequence\ncomputations by Isaksen\, Wang\, and Xu. Th
eir approach is based on a\ntheoretical result by Gheorghe\, Wang\, and Xu
about a t-structure on\nthe p-complete cellular complex motivic category.
We will explore a\ngeneralization of this result\, which leads to computa
tional\napplications in both classical and motivic Adams spectral sequence
s.\nThis is joint work with Tom Bachmann\, Guozhen Wang\, and Zhouli Xu.
DTSTART:20230417T203000Z
DTEND:20230417T213000Z
LAST-MODIFIED:20230502T131059Z
LOCATION:Princeton University\, Fine Hall 314
SUMMARY:Joint IAS/Princeton University Arithmetic Geometry Seminar
URL:https://www.ias.edu/math/events/joint-iasprinceton-university-arithmeti
c-geometry-seminar-0
END:VEVENT
BEGIN:VEVENT
UID:35636163-6637-4239-b931-646138646133
DTSTAMP:20230604T064418Z
CREATED:20230105T142617Z
DESCRIPTION:Topic: Existence of Subspace Designs \n\nSpeakers: Ashwin Sah\n
\nAffiliation: Massachusetts Institute of Technology\n\nWe prove the exist
ence of subspace designs with any given parameters\,\nprovided that the di
mension of the underlying space is sufficiently\nlarge in terms of the oth
er parameters of the design and satisfies the\nobvious necessary divisibil
ity conditions. This settles an open\nproblem from the 1970s. Moreover\, w
e also obtain an approximate\nformula for the number of such designs.\n\nJ
oint work with Peter Keevash and Mehtaab Sawhney.
DTSTART:20230418T143000Z
DTEND:20230418T163000Z
LAST-MODIFIED:20230501T172749Z
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-536
END:VEVENT
BEGIN:VEVENT
UID:37336665-6262-4365-b566-383466313139
DTSTAMP:20230604T064418Z
CREATED:20230125T141641Z
DESCRIPTION:The Bahcall Lunch follows the astrophysics colloquium lecture.
DTSTART:20230418T163000Z
DTEND:20230418T173000Z
LAST-MODIFIED:20230125T141656Z
LOCATION:Gravity Initiative space\, 4th floor of Jadwin Hall\, Princeton U.
SUMMARY:Institute for Advanced Study / Princeton University Bahcall Lunch
URL:https://www.ias.edu/sns/events/institute-advanced-study-princeton-unive
rsity-bahcall-lunch-45
END:VEVENT
BEGIN:VEVENT
UID:36353061-3865-4062-a166-643430656562
DTSTAMP:20230604T064418Z
CREATED:20230412T190733Z
DESCRIPTION:Topic: Polynomial Patterns in Finite Fields: a Dynamical Point
of View\n\nSpeakers: Ethan M Ackelsberg\n\nAffiliation: Member\, School of
Mathematics\n\nIn its dynamical formulation\, the Furstenberg—Sárközy the
orem\nstates that for any invertible measure-preserving system $(X\, \mu\,
\nT)$\, any set $A \subseteq X$ with $\mu(A) > 0$\, and any integer\npolyn
omial $P$ with $P(0) = 0$\,\n$$c(A) = \lim_{N-M \to \infty} \frac{1}{N-M}
\sum_{n=M}^{N-1} \mu\n\left( A \cap T^{P(n)}A \right) > 0.$$\nThe limit $c
(A)$ obtains the ``correct'' value $\mu(A)^2$ when $T$ is\n\emph{totally e
rgodic}. In fact\, when $T$ is totally ergodic\, one has\nan ergodic theor
em for polynomial actions: for any integer polynomial\n$P$ and any $f \in
L^2(\mu)$\,\n$$\lim_{N-M \to \infty} \frac{1}{N-M} \sum_{n=M}^{N-1} T^{P(n
)}f =\n\int_X{f~d\mu}\,$$\nwhere the limit is taken in $L^2(\mu)$.\n\nWe w
ill explain that the correct notion of total ergodicity for\npolynomial ac
tions of more general rings depends on the dynamical\nbehavior of actions
along finite index ideals. From this point of\nview\, the action of a larg
e finite field on itself is asymptotically\ntotally ergodic\, since the in
dex of the only proper ideal $\{0\}$\ngrows with the size of the field. Gu
ided by ergodic-theoretic results\nabout polynomial (multiple) recurrence
in totally ergodic systems\, we\nthen obtain several new results about pol
ynomial configurations in\nlarge subsets of finite fields.\n\nBased on joi
nt work with Vitaly Bergelson.
DTSTART:20230418T180000Z
DTEND:20230418T190000Z
LAST-MODIFIED:20230525T132110Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Special Year Research Seminar
URL:https://www.ias.edu/math/events/special-year-research-seminar-28
END:VEVENT
BEGIN:VEVENT
UID:36653935-3038-4634-a435-383362366662
DTSTAMP:20230604T064418Z
CREATED:20230202T192344Z
DESCRIPTION:
DTSTART:20230418T190000Z
DTEND:20230418T210000Z
LAST-MODIFIED:20230504T130743Z
LOCATION:Rubenstein Commons | Meeting Room 5
SUMMARY:Reading Seminar on Perelman's Stability Theorem
URL:https://www.ias.edu/math/events/reading-seminar-perelmans-stability-the
orem-6
END:VEVENT
BEGIN:VEVENT
UID:39663566-6362-4030-b833-323136373931
DTSTAMP:20230604T064418Z
CREATED:20230414T140915Z
DESCRIPTION:Topic: Algebraic Aspects of Normality and Determinism. \n\nSpea
kers: Tomasz Downarowicz\n\nAffiliation: Technical University of Wroclaw\n
\n_In 1976\, Gérard Rauzy proved a characterization of deterministic\nnumb
ers: y is deterministic iff for any normal number x\, x+y is also\nnormal.
During my lecture I will __discuss how normal and\ndeterministic numbers
behave under arithmetic operations. __I will\nconclude by posing a number
of open problems. Based on joint work with\nVitaly Bergelson._
DTSTART:20230419T143000Z
DTEND:20230419T160000Z
LAST-MODIFIED:20230525T132141Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Special Year Learning Seminar
URL:https://www.ias.edu/math/events/special-year-learning-seminar-13
END:VEVENT
BEGIN:VEVENT
UID:34303536-6633-4162-b263-313737383365
DTSTAMP:20230604T064418Z
CREATED:20230403T152405Z
DESCRIPTION:Topic: Reading looted books: Nazi confiscated property in the L
ibrary of the Heidelberg University of Jewish Studies\n\nSpeakers: Philipp
Zschommler\n\nAffiliation: Heidelberg University of Jewish Studies\n\nWhi
le the burning of banned writings receives a great deal of\nattention into
our days\, the phenomenon of collecting these texts has\nonly been gainin
g access to research for the last 20 years. Analogous\nto the exhibition a
nd actions against “Degenerate Art”\, the\nNational Socialists used books
for propagandist purposes in different\nforms. Hundreds of thousands of th
ese objects have been preserved to\nthis day\, even if in most cases they
are not perceived as such. They\nform a neglected primary source for histo
rical research in detail and\nabove all in constellation. The call numbers
\, inventory numbers\,\npossession stamps\, dedications and handwritten no
tes give us immediate\ninsights into the history of science and personal h
istory. At the same\ntime\, the books provide clues about the context of e
xclusion\,\npersecution and murder. \n\nSince 2019\, the University of Jew
ish Studies has been following these\nindications in a project with the ai
m of reconstructing the\nbiographies of the original owners and returning
the books to the\nheirs and successor organizations. The collection\, whic
h is currently\nunder investigation\, contains primarily books that had be
en\nconfiscated by the Nazis as Jewish property in Theresienstadt\, Prague
\nand Budapest. Examples are used to illuminate ways from the\nidentificat
ion of the owners\, their integration into the historical\ncontext to rest
itution.\n\nPRE-REGISTRATION IS REQUIRED: http://bit.ly/3LVe3p6. After\nre
gistering\, you will receive an email containing information about\njoinin
g the event.
DTSTART:20230419T160000Z
DTEND:20230419T170000Z
LAST-MODIFIED:20230403T152907Z
LOCATION:Zoom event
SUMMARY:Near Eastern Studies Lecture
URL:https://www.ias.edu/hs/events/near-eastern-studies-lecture-3
END:VEVENT
BEGIN:VEVENT
UID:64323966-6232-4933-a661-616337386437
DTSTAMP:20230604T064418Z
CREATED:20230224T192638Z
DESCRIPTION:Topic: Our Galaxy in motion: Ripples\, ridges and spirals in th
e Milky Way \n\nSpeakers: Jason Hunt\n\nAffiliation: Flatiron Institute\n
\nData from ESA’s Gaia mission is already revolutionizing Galactic\nastron
omy\, providing an unprecedented view of the Solar neighborhood\nand beyon
d. However\, while it provides us a great opportunity to\ntransform our un
derstanding of the Milky Way\, it has also highlighted\nhow far from equil
ibrium our Galaxy is. The spiral pattern in vertical\nposition vs. velocit
y is a signature of our Galaxy’s past\ninteraction with perturbing influen
ces such as merging dwarf galaxies\,\nor internal substructure. We dissect
and analyze these ‘phase\nspirals’\, showing the first discovery of two a
rmed ‘breathing\nspirals’ in the inner disc\, and show how we can leverage
high\nresolution galaxy models and dynamical theory to learn about the\ns
tructure and history of our Galaxy.
DTSTART:20230420T150000Z
DTEND:20230420T160000Z
LAST-MODIFIED:20230313T174859Z
LOCATION:Bloomberg Lecture Hall
SUMMARY:Institute for Advanced Study Astrophysics Seminar
URL:https://www.ias.edu/sns/events/institute-advanced-study-astrophysics-se
minar-66
END:VEVENT
BEGIN:VEVENT
UID:36306135-6332-4361-b533-363537636138
DTSTAMP:20230604T064418Z
CREATED:20230405T172320Z
DESCRIPTION:Topic: What is a D-module?\n\nSpeakers: Lizzie Pratt\n\nAffilia
tion: University of California\, Berkeley\n\nIn this talk\, we will discus
s the computation of motivic stable\nhomotopy groups and their application
s in classical computations.\nSpecifically\, we will discuss an example of
complex motivic\napplications in classical theory\, the Adams spectral se
quence\ncomputations by Isaksen\, Wang\, and Xu. Their approach is based o
n a\ntheoretical result by Gheorghe\, Wang\, and Xu about a t-structure on
\nthe p-complete cellular complex motivic category. We will explore a\ngen
eralization of this result\, which leads to computational\napplications in
both classical and motivic Adams spectral sequences.\n\nThis is joint wor
k with Tom Bachmann\, Guozhen Wang\, and Zhouli Xu.
DTSTART:20230420T170000Z
DTEND:20230420T183000Z
LAST-MODIFIED:20230419T192130Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:What Is .... ?
URL:https://www.ias.edu/math/events/what-8
END:VEVENT
BEGIN:VEVENT
UID:37366561-6631-4461-a632-326139383336
DTSTAMP:20230604T064418Z
CREATED:20230313T173836Z
DESCRIPTION:Topic: An interactive tutorial of software for JWST and more (T
BR)\n\nSpeakers: Camilla Pacifici\n\nAffiliation: Space Telescope Science
Institute
DTSTART:20230420T180000Z
DTEND:20230420T190000Z
LAST-MODIFIED:20230313T173919Z
LOCATION:Serin Hall Rm W330\, Rutgers and Zoom
SUMMARY:Rutgers University Astrophysics Seminar
URL:https://www.ias.edu/sns/events/rutgers-university-astrophysics-seminar-
28
END:VEVENT
BEGIN:VEVENT
UID:64623632-6236-4830-b531-326639366162
DTSTAMP:20230604T064418Z
CREATED:20230123T152816Z
DESCRIPTION:Topic: Root Number Correlation Bias of Fourier Coefficients of
Modular Forms\n\nSpeakers: Nina Zubrilina\n\nAffiliation: Princeton Univer
sity\n\nIn a recent machine learning based study\, He\, Lee\, Oliver\, and
\nPozdnyakov observed a striking oscillating pattern in the average\nvalue
of the P-th Frobenius trace of elliptic curves of prescribed\nrank and co
nductor in an interval range. Sutherland discovered that\nthis bias extend
s to Dirichlet coefficients of a much broader class of\narithmetic L-funct
ions when split by root number. \n\nIn my talk\, I will discuss this root
number correlation bias when the\naverage is taken over weight 2 modular n
ewforms of all Galois orbit\nsizes simultaneously. I will point to a sourc
e of this phenomenon in\nthis case and compute the correlation function ex
actly.
DTSTART:20230420T203000Z
DTEND:20230420T213000Z
LAST-MODIFIED:20230421T172155Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Joint IAS/PU Number Theory Seminar
URL:https://www.ias.edu/math/events/joint-iaspu-number-theory-seminar-22
END:VEVENT
BEGIN:VEVENT
UID:35363231-6634-4437-b137-616337326162
DTSTAMP:20230604T064418Z
CREATED:20221205T205633Z
DESCRIPTION:Topic: Three 20-min Research Talks\n\nBRAYAN FERREIRA (Institut
o de Matemática Pura e Aplicada): \n\nGromov Width of Disk Cotangent Bundl
es of Spheres of Revolution: The\nquestion of whether a Symplectic manifol
d embeds into another is\ncentral in Symplectic topology. Since Gromov non
squeezing theorem\, it\nis known that this is a different problem from vol
ume preserving\nembeddings. Symplectic capacities are invariants that give
\nobstructions to symplectic embeddings. The first example of a\nsymplecti
c capacity is given by the Gromov width\, which measures the\nbiggest ball
that can be symplectically embedded into a symplectic\nmanifold. In this
talk\, we are going to discuss the Gromov width for\nthe example of disk c
otangent bundles of spheres of revolution. The\nmain results are for the Z
oll cases and for the case of ellipsoids of\nrevolution. The main tools ar
e action angle coordinates\n(Arnold-Liouville theorem) and ECH capacities.
This is joint work with\nAlejandro Vicente and Vinicius Ramos.\n\nROMAN K
RUTOWSKI (University of California\, Los Angeles):\n\nMaslov Index Formula
in Heegaard Floer Homology: The formula\nintroduced by Robert Lipshitz fo
r Heegaard Floer homology is now one\nof the basic tools for those working
with HF homology. The convenience\nof the formula is due to its combinato
rial nature. In the talk\, we\nwill discuss the recent combinatorial proof
of this formula.\n\nAMANDA HIRSCHI (University of Cambridge): \n\nGlobal
Kuranishi Charts for Gromov-Witten Moduli Spaces and a Product\nFormula: I
will describe the construction of a global Kuranishi chart\nfor moduli sp
aces of stable pseudoholomorphic maps of any genus and\nexplain how this a
llows for a straightforward definition of GW\ninvariants. For those not co
nvinced of its usefulness\, I will sketch\nhow this can be used to obtain
a formula for the GW invariants of a\nproduct. This is joint work with Moh
an Swaminathan.
DTSTART:20230421T131500Z
DTEND:20230421T144500Z
LAST-MODIFIED:20230421T132934Z
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-116
END:VEVENT
BEGIN:VEVENT
UID:30306334-3530-4334-b033-646539313263
DTSTAMP:20230604T064418Z
CREATED:20230103T205214Z
DESCRIPTION:Topic: Lives and letters. The correspondence of Christiaan Snou
ck Hurgronje (1857-1936).\n\nSpeakers: Jan Just Witkam\n\nAffiliation: Lei
den University\n\nThe object of this lecture series is to bring together s
cholars and\nlibrarians engaged with collections of correspondences and/or
include\nrelated projects that use appropriate digital tools to map and a
nalyze\nsuch corpora. It is hosted by Sabine Schmidtke (NES@IAS) and María
\nMercedes Tuya (Digital Scholarship @IAS). \n\nFor additional information
on this event and the lecture\nseries visit:\n https://albert.ias.edu/20.
500.12111/8044.\n\nRegister in advance here: bit.ly/3Qe8O4\n[https://bit.l
y/3YtrOPZ]1. After registering\, you will receive an\nemail containing inf
ormation about joining the event.\n\n
DTSTART:20230421T160000Z
DTEND:20230421T170000Z
LAST-MODIFIED:20230221T193804Z
LOCATION:Zoom event
SUMMARY:Scholarly Correspondences Among Orientalists: A Series of Lectures
URL:https://www.ias.edu/hs/events/scholarly-correspondences-among-orientali
sts-series-lectures-8
END:VEVENT
BEGIN:VEVENT
UID:36313364-6130-4233-b139-613566653263
DTSTAMP:20230604T064418Z
CREATED:20230303T150918Z
DESCRIPTION:Topic: Heavy element nucleosynthesis and high-energy neutrinos
from magnetized outflows\n\nSpeakers: Mukul Bhattacharya\n\nAffiliation: P
ennsylvania State University\n\nWhile nuclei lighter than iron are fused o
ver the course of typical\nstellar evolution\, almost half of the elements
heavier than iron are\ncreated through the rapid neutron capture process
(r-process). These\nnuclei are thought to be produced in magnetised outflo
ws from\nneutron-rich explosive events including compact mergers and\ncore
-collapse supernovae. In this talk\, I will discuss the potential\nof neut
rino-driven winds from strongly magnetised and rapidly rotating\nprotomagn
etars as plausible sites for r-process nucleosynthesis. As\nheavy nuclei c
an eventually produce ultra-high energy cosmic rays\, we\nexamine the acce
leration and survival conditions for these nuclei. We\nalso explore the pr
opagation of these jets within Wolf-Rayet stars and\nblue/red supergiants.
In particular\, we analyse the criteria for a\nsuccessful jet breakout\,
maximum energy deposited into the cocoon and\nstructural stability of thes
e magnetised jets. We show that\nhigh-energy neutrinos can be produced for
extended progenitors like\nblue/red supergiants and estimate the detectab
ility of these neutrinos\nwith IceCube-Gen2.
DTSTART:20230421T163000Z
DTEND:20230421T173000Z
LAST-MODIFIED:20230414T195538Z
LOCATION:Dome Room\, Peyton Hall or Zoom
SUMMARY:Princeton University Astroplasmas Seminar
URL:https://www.ias.edu/sns/events/princeton-university-astroplasmas-semina
r-46
END:VEVENT
BEGIN:VEVENT
UID:31356432-3162-4236-a634-306530303031
DTSTAMP:20230604T064418Z
CREATED:20221014T133827Z
DESCRIPTION:Topic: TBD
DTSTART:20230421T170000Z
DTEND:20230421T193000Z
LAST-MODIFIED:20230502T131140Z
LOCATION:Rubenstein Commons | Meeting Room 5
SUMMARY:Milnor Conjecture Learning Seminar
URL:https://www.ias.edu/math/events/milnor-conjecture-learning-seminar-16
END:VEVENT
BEGIN:VEVENT
UID:33353839-6533-4366-a637-356332623165
DTSTAMP:20230604T064418Z
CREATED:20230403T193308Z
DESCRIPTION:Topic: Counting Irreducible Integral Polynomials with Roots App
roximating Configuration of Points\n\nSpeakers: Naser Talebizadeh Sardari
\n\nAffiliation: Penn State University\n\nSuppose that $\Sigma \subset \ma
thbb{C}$ is compact and symmetric\nabout the real axis and is a finite uni
on of rectangles and real\nintervals with transfinite diameter $d_{\Sigma}
>1$. Suppose that $\mu$\nis a $H$ older arithmetic probability distributio
n on $\Sigma$ defined\nin our work with Orloski with logarithmic energy $I
(\mu):=\int\int\n\log|z_1-z_2|d\mu(z_1)d\mu(z_2)$.\n\nLet $\mathcal{Z}=\{z
_1\,\dots\,z_n\}$ be a generic sampling of $n$\npoints according to $\mu$.
Let $n>m>n^{1-\delta}$ for some $\delta>0$\nthat depends only on $\mu$. W
e prove that there are\n$e^{\frac{n^2}{2}I(\mu)+O(mn+m^2)}$ irreducible po
lynomial of degree\n$m+n$ with roots $\alpha_1\,\dots\,\alpha_{m+n}$ such
\nthat $|z_i-\alpha_i|> w. In particular\, in the regime log n\n> log2w\,
our algorithm runs in nearly-optimal O~(log n) space\,\nimproving upon th
e previous best O(log3/2n).\n\nJoint work with Gil Cohen\, Ori Sberlo\, an
d Amnon Ta-Shma.
DTSTART:20230424T151500Z
DTEND:20230424T161500Z
LAST-MODIFIED:20230501T172822Z
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-542
END:VEVENT
BEGIN:VEVENT
UID:38383132-3837-4136-b636-353838353436
DTSTAMP:20230604T064418Z
CREATED:20230313T182308Z
DESCRIPTION:Topic: From Dust to Planetesimals\, from Young to Evolved Proto
planetary Disks\n\nSpeakers: Rixin Li\n\nAffiliation: Cornell University\n
\nThe very first step in planet formation is to build planetesimals out\no
f dust particles in protoplanetary disks. The origin and demographics\nof
planetesimals are crucial to understanding the Solar System\,\nexoplanetar
y systems\, and circumstellar disks. In this talk\, I will\npresent our la
test works on planetesimal formation via the streaming\ninstability --- on
e of the leading mechanisms to aerodynamically\nconcentrate solids and pro
duce planetesimals. I will then discuss the\nimplications and connections
between our high-resolution simulation\nresults and recent disk observatio
ns as well as Solar System\nexplorations\, contextualizing our model for e
arly planet formation in\ndisks at various evolutionary stages.
DTSTART:20230424T160000Z
DTEND:20230424T170000Z
LAST-MODIFIED:20230421T162446Z
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-83
END:VEVENT
BEGIN:VEVENT
UID:39303737-6437-4438-b334-613036313562
DTSTAMP:20230604T064418Z
CREATED:20230421T162807Z
DESCRIPTION:Topic: Testing Gravity with cross-correlations between CMB Lens
ing and Large-Scale Structure\n\nSpeakers: Lukas Wenzl\n\nAffiliation: Cor
nell University\n\nWhile models of dark energy can be tuned to match the o
bserved\nlate-time accelerated expansion of the universe\, similar to a\nc
osmological constant\, they at the same time also change the\nrelationship
between the gravitational potentials. The E_G statistic\ntests for this b
y combining tracers of lensing and matter overdensity.\nThe recently publi
cally announced ACT DR6 CMB lensing map offers a\nnew opportunity to revis
it this popular statistic together with\nestablished SDSS data. Making thi
s measurement requires\ncareful consideration of a range of potential syst
ematics.
DTSTART:20230424T163000Z
DTEND:20230424T180000Z
LAST-MODIFIED:20230421T162949Z
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-57
END:VEVENT
BEGIN:VEVENT
UID:66666539-6633-4263-a638-306365303835
DTSTAMP:20230604T064418Z
CREATED:20221207T192054Z
DESCRIPTION:Topic: On Lagrangian Quasi-Cobordisms\n\nSpeakers: Angela Wu\n
\nAffiliation: Louisiana State University\n\nA Lagrangian cobordism betwee
n Legendrian knots is an important notion\nin symplectic geometry. Many qu
estions\, including basic structural\nquestions about these surfaces are y
et unanswered. For instance\, while\nit is known that these cobordisms for
m a preorder\, and that they are\nnot symmetric\, it is not known if they
form a partial order on\nLegendrian knots. The idea of a Lagrangian quasi-
cobordism was first\ndefined by Sabloff\, Vela-Vick\, and Wong. Roughly\,
for two Legendrians\nof the same rotation number\, it is the smooth compos
ition of a\nsequence of alternatingly ascending and descending Lagrangian
\ncobordisms which start at one knot and ends at the other. This forms a\n
metric monoid on Legendrian knots\, with distance given by the minimal\nge
nus between any two Legendrian knots. In this talk\, I will discuss\nsome
new results about Lagrangian quasi-cobordisms\, based on some work\nin pro
gress with Sabloff\, Vela-Vick\, and Wong.
DTSTART:20230424T200000Z
DTEND:20230424T213000Z
LAST-MODIFIED:20230424T192246Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Joint IAS/Princeton University Symplectic Geometry Seminar
URL:https://www.ias.edu/math/events/joint-iasprinceton-university-symplecti
c-geometry-seminar-215
END:VEVENT
BEGIN:VEVENT
UID:38656261-6161-4561-b532-336566653861
DTSTAMP:20230604T064418Z
CREATED:20230105T182955Z
DESCRIPTION:Topic: A Stacky Perspective on P-adic Non-abelian Hodge Theory
\n\nSpeakers: Arthur-Cesar Le Bras\n\nAffiliation: Galilee Institute\, Uni
versity of Paris\n\nP-adic non abelian Hodge theory\, also known as the p-
adic Simpson\ncorrespondence\, aims at describing p-adic local systems on
a smooth\nrigid analytic variety in terms of Higgs bundles. I will explain
in\nthis talk why the « Hodge-Tate stacks » recently introduced by\nBhatt
-Lurie and Drinfeld in their work on prismatic cohomology can be\nuseful t
o study this kind of questions.\n\nJoint work with Johannes Anschütz and B
en Heuer.
DTSTART:20230424T203000Z
DTEND:20230424T213000Z
LAST-MODIFIED:20230425T141214Z
LOCATION:Rubenstein Commons | Meeting Room 5
SUMMARY:Joint IAS/Princeton University Arithmetic Geometry Seminar
URL:https://www.ias.edu/math/events/joint-iasprinceton-university-arithmeti
c-geometry-seminar
END:VEVENT
BEGIN:VEVENT
UID:38336332-6138-4330-b864-396361333533
DTSTAMP:20230604T064418Z
CREATED:20230324T190028Z
DESCRIPTION:IAS Family Stargazing Night \nMonday\, April 24\n8:00 p.m.: Tal
k by Lia Medeiros\, Wolfensohn Hall\n8:30 p.m.: Stargazing\, South Lawn \n
Rain Date: Tuesday\, April 25\n\n \n\nPlease join us for a night of astron
omy and stargazing. Lia Medeiros\,\ncomputational high-energy astrophysici
st in the School of Natural\nSciences at the Institute\, will share new im
agery of black holes\nproduced by the Event Horizon Telescope in Wolfensoh
n Hall.\nImmediately following\, Gaspar Barkos and Bob Vanderbei from the
\nDepartment of Astrophysical Sciences at Princeton University will\nguide
us in using telescopes to watch the night sky on the South Lawn.
DTSTART:20230425T000000Z
DTEND:20230425T000000Z
LAST-MODIFIED:20230421T183048Z
LOCATION:Wolfensohn Hall
SUMMARY:IAS Family Stargazing Night
URL:https://www.ias.edu/events/ias-family-stargazing-night
END:VEVENT
BEGIN:VEVENT
UID:31653033-6435-4163-a535-356331353134
DTSTAMP:20230604T064418Z
CREATED:20230105T142741Z
DESCRIPTION:Topic: A Unified Approach to Discrepancy Minimization\n\nSpeake
rs: Nikhil Bansal\n\nAffiliation: University of Michigan\n\nDiscrepancy th
eory provides a powerful approach to improve upon the\nbounds obtained by
a basic application of the probabilistic method. In\nrecent years\, severa
l algorithmic approaches have been developed for\nvarious classical result
s in the area. In this talk\, I will survey\nsome of these ideas and descr
ibe a recent algorithmic approach based\non barrier-based potential funct
ions that recovers several\nstate-of-the-art results in a simple and unifi
ed way.\n\nBased on joint work with Aditi Laddha and Santosh Vempala.
DTSTART:20230425T143000Z
DTEND:20230425T163000Z
LAST-MODIFIED:20230501T172850Z
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-537
END:VEVENT
BEGIN:VEVENT
UID:63353130-6233-4531-a462-363132616565
DTSTAMP:20230604T064418Z
CREATED:20230125T141702Z
DESCRIPTION:The Bahcall Lunch follows the astrophysics colloquium lecture.
DTSTART:20230425T163000Z
DTEND:20230425T173000Z
LAST-MODIFIED:20230125T141717Z
LOCATION:Gravity Initiative space\, 4th floor of Jadwin Hall\, Princeton U.
SUMMARY:Institute for Advanced Study / Princeton University Bahcall Lunch
URL:https://www.ias.edu/sns/events/institute-advanced-study-princeton-unive
rsity-bahcall-lunch-46
END:VEVENT
BEGIN:VEVENT
UID:66326161-6434-4666-b035-386535353835
DTSTAMP:20230604T064418Z
CREATED:20230313T164501Z
DESCRIPTION:Topic: TBA
DTSTART:20230425T190000Z
DTEND:20230425T200000Z
LAST-MODIFIED:20230313T164515Z
LOCATION:Peyton Hall\, Grand Central
SUMMARY:Princeton University Computational Astrophysics Club
URL:https://www.ias.edu/sns/events/princeton-university-computational-astro
physics-club-15
END:VEVENT
BEGIN:VEVENT
UID:31353361-6135-4230-b039-383935333062
DTSTAMP:20230604T064418Z
CREATED:20230202T192416Z
DESCRIPTION:
DTSTART:20230425T190000Z
DTEND:20230425T210000Z
LAST-MODIFIED:20230504T130656Z
LOCATION:Rubenstein Commons | Meeting Room 5
SUMMARY:Reading Seminar on Perelman's Stability Theorem
URL:https://www.ias.edu/math/events/reading-seminar-perelmans-stability-the
orem-1
END:VEVENT
BEGIN:VEVENT
UID:38346234-6631-4765-b939-356461666535
DTSTAMP:20230604T064418Z
CREATED:20221213T151335Z
DESCRIPTION:Topic: Global Stability of Kaluza-Klein Spacetimes\n\nSpeakers:
Zoe Wyatt\n\nAffiliation: King's College London\n\nSpacetimes formed from
the cartesian product of Minkowski space and a\nflat torus play an import
ant role as toy models for theories of\nsupergravity and string theory. In
this talk\, I will discuss an\nupcoming work\, joint with Huneau and Stin
go\, showing the nonlinear\nstability of such a Kaluza-Klein spacetime. I
will also explain how\nour result is connected to some earlier work of Wit
ten.
DTSTART:20230426T190000Z
DTEND:20230426T200000Z
LAST-MODIFIED:20230502T131220Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Analysis and Mathematical Physics
URL:https://www.ias.edu/math/events/analysis-and-mathematical-physics-7
END:VEVENT
BEGIN:VEVENT
UID:64623761-3138-4231-b739-653236666235
DTSTAMP:20230604T064418Z
CREATED:20230224T192702Z
DESCRIPTION:Topic: The colourful past and dark side of galaxies unveiled th
rough population-dynamics of their stars\n\nSpeakers: Glenn van de Ven\n\n
Affiliation: University of Vienna\n\nDriven by gravity\, galaxies continuo
usly grow through accretion of\nsmaller systems. Stellar streams are nice
illustrations of this\nhierarchical build-up\, but the accreted stars quic
kly disperse. I will\npresent advanced dynamical models that can convert t
he observed\npositions and velocities of stars to phase-space quantities l
ike\nenergy and angular momentum which remain largely conserved. In\naddit
ion\, these models can include the observed ages and chemical\nproperties
of stars which are also conserved. The resulting\npopulation-dynamical mod
els allow us then to uncover even those\naccretion events which are now fu
lly dispersed. At the same time\,\nthese models also accurately constrain
the total mass distribution\,\nincluding a central black hole and dark mat
ter halo.\n\nI will illustrate how these models make optimally use of obse
rvations\nto unveil the dark side and colour past of galaxies: from accura
te\nmeasurements of their dark halo\, to unveiling the formation history o
f\ntheir disks\, to uncovering ancient massive mergers and accreted\nsatel
lite galaxies. By the end\, I aim to have demonstrated that these\nmodels
provide a unique bridge between the studies of resolved stars\nin the Milk
y Way and integrated-light of high(er)-redshift galaxies.\nTogether with d
irect coupling to state-of-the-art galaxy formation\nsimulations\, these p
opulation-dynamical models enable us to uncover\nthe hierarchical build-up
of galaxies in a cosmological context.
DTSTART:20230427T150000Z
DTEND:20230427T160000Z
LAST-MODIFIED:20230313T175102Z
LOCATION:Bloomberg Lecture Hall
SUMMARY:Institute for Advanced Study Astrophysics Seminar
URL:https://www.ias.edu/sns/events/institute-advanced-study-astrophysics-se
minar-67
END:VEVENT
BEGIN:VEVENT
UID:32326163-3336-4831-b162-373165316363
DTSTAMP:20230604T064418Z
CREATED:20230313T173926Z
DESCRIPTION:Topic: New precision cosmological constraints from CMB lensing
with the Atacama Cosmology Telescope\n\nSpeakers: Mathew Madhavacheril\n\n
Affiliation: University of Pennsylvania\n\nThe Atacama Cosmology Telescope
is a ground-based CMB survey that has\nmapped half the millimeter sky at
significantly higher resolution and\nsensitivity than the Planck satellite
. I will present new ACT results\nfrom a 9400 sq.deg. gravitational lensin
g mass map\, including\nconstraints on the amplitude of matter fluctuation
s as well as the\nHubble constant at better than 2%\, as well as bounds on
the sum of\nneutrino masses and curvature density. With a consistent re-a
nalysis\nof galaxy weak lensing from the DES\, HSC and KiDS surveys\, I wi
ll\ndiscuss these results in the context of the S8 tension. With an ACT\nl
ensing-informed measurement of the Hubble constant independent of the\nsou
nd horizon\, I will discuss implications for the Hubble tension.
DTSTART:20230427T180000Z
DTEND:20230427T190000Z
LAST-MODIFIED:20230421T164517Z
LOCATION:Serin Hall Rm W330\, Rutgers and Zoom
SUMMARY:Rutgers University Astrophysics Seminar
URL:https://www.ias.edu/sns/events/rutgers-university-astrophysics-seminar-
29
END:VEVENT
BEGIN:VEVENT
UID:63316365-6430-4431-b536-376632393533
DTSTAMP:20230604T064418Z
CREATED:20230123T153653Z
DESCRIPTION:Topic: Hecke Orbits on Shimura Varieties of Hodge Type\n\nSpeak
ers: Pol van Hoften\n\nAffiliation: Stanford University\n\nOort conjecture
d in 1995 that isogeny classes in the moduli space A_g\nof principally pol
arised abelian varieties in characteristic p are\nZariski dense in the New
ton strata containing them. There is a\nstraightforward generalisation of
this conjecture to the special\nfibres of Shimura varieties of Hodge type\
, and in this talk\, I will\npresent a proof of this conjecture. I will m
ostly focus on the case\nof A_g since many of the new ideas can already be
explained in this\nspecial case. This is joint work with Marco D'Addezio.
DTSTART:20230427T203000Z
DTEND:20230427T213000Z
LAST-MODIFIED:20230504T125303Z
LOCATION:Remote Access - see Zoom link below
SUMMARY:Joint IAS/PU Number Theory Seminar
URL:https://www.ias.edu/math/events/joint-iaspu-number-theory-seminar-23
END:VEVENT
BEGIN:VEVENT
UID:62386534-3736-4438-b938-356437373832
DTSTAMP:20230604T064418Z
CREATED:20221205T205734Z
DESCRIPTION:Topic: Locally Maximizing Orbits and Rigidity for Convex Billia
rds\n\nSpeakers: Michael Bialy\n\nAffiliation: Tel Aviv University\n\nGive
n a convex billiard table\, one defines the\nset $\mathcal{M}$ swept by lo
cally maximizing orbits for convex\nbilliard. This is a remarkable closed
invariant set which does not\ndepend (under certain assumptions) on the ch
oice of the generating\nfunction. I shall show how to get sharp estimates
on the measure of\nthis set\, recovering as a corollary rigidity result fo
r centrally\nsymmetric convex billiards. Also I shall discuss rigidity of
\nMather $\beta$ function. Based on joint works with Andrey E. Mironov\,\n
Sergei Tabachnikov and Daniel Tsodikovich
DTSTART:20230428T131500Z
DTEND:20230428T144500Z
LAST-MODIFIED:20230428T120552Z
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-117
END:VEVENT
BEGIN:VEVENT
UID:63343262-6635-4563-b832-666662613865
DTSTAMP:20230604T064418Z
CREATED:20230421T164736Z
DESCRIPTION:Topic: Select numerical models of magnetic reconnection in blac
k hole magnetospheres and jets\n\nSpeakers: John Mehlhaff \n\nAffiliation:
Université Grenoble Alpes\n\nThe magnetospheres and jets of black holes h
ost collisionless and\nhighly magnetized plasmas. In such plasmas\, relati
vistic magnetic\nreconnection may catalyze the release of free magnetic en
ergy\,\npowering quiescent and – especially – flaring emission. Exploring
\nreconnection models in detail requires addressing multiwavelength\nobser
vations that boast ever-increasing temporal and spatial\nresolution. This\
, in turn\, demands a fully kinetic plasma description.\nOnly then can one
capture the collisionless coupling between position\,\nmomentum-space\, a
nd time that the observations probe. Thus\, in my\nwork\, I use kinetic\,
particle-in-cell (PIC) simulations to model\nreconnection in regimes relev
ant to black hole magnetospheres and\njets. I summarize results from two p
rojects in this talk. The first\nproject features PIC simulations of recon
nection coupled to QED\nradiative physics. Here\, the plasma particles rad
iate their energy in\ndiscrete quanta through Klein-Nishina inverse Compto
n scattering.\nFurthermore\, the emitted gamma-ray photons can feed back o
n\nreconnection through electron-positron pair production. This radiative
\nphysics induces distinct observable signatures that can be compared to\n
observations\, both current and upcoming\, of gamma-ray flares from\nflat-
spectrum radio quasars. In the second part of my talk\, I discuss\nongoing
efforts to model striped-jet launching from black holes using\ngeneral re
lativistic PIC simulations. In this work\, loops of\nalternating-polarity
poloidal magnetic flux are accreted onto a\nspinning black hole. The rotat
ional shear between the loop footpoints\nexplosively tears the loops open
via magnetic reconnection\,\npotentially yielding observable magnetospheri
c counterpart emission to\nthe formation of a large-scale striped jet.\n\n
DTSTART:20230428T163000Z
DTEND:20230428T173000Z
LAST-MODIFIED:20230421T164938Z
LOCATION:Dome Room\, Peyton Hall or Zoom
SUMMARY:Princeton University Astroplasmas Seminar
URL:https://www.ias.edu/sns/events/princeton-university-astroplasmas-semina
r-47
END:VEVENT
BEGIN:VEVENT
UID:64396233-6366-4461-b433-383362656239
DTSTAMP:20230604T064418Z
CREATED:20230324T151143Z
DESCRIPTION:Happy Hour with Lorelei Ensemble\nFriday\, April 28 | 5:30 p.m.
\nRubenstein Commons\n\nJoin us for a happy hour on Friday\, April 28 in
Rubenstein Commons\nwith Lorelei Ensemble in preparation for their perform
ance on\nSaturday\, April 29. \n\nFood and drinks will be available for pu
rchase using an Institute I.D.\nor credit card. Please note that this is a
n adult-only event.
DTSTART:20230428T213000Z
DTEND:20230428T213000Z
LAST-MODIFIED:20230411T194531Z
LOCATION:Rubenstein Commons
SUMMARY:Happy Hour with Lorelei Ensemble
URL:https://www.ias.edu/events/happy-hour-lorelei-ensemble
END:VEVENT
BEGIN:VEVENT
UID:64343539-6533-4866-b764-343831353133
DTSTAMP:20230604T064418Z
CREATED:20230227T150123Z
DESCRIPTION:Topic: A Constant Lower Bound for Frankl's Union-Closed Sets Co
njecture\n\nSpeakers: Justin Gilmer\n\nAffiliation: Google Brain\n\nA fini
te set system is union-closed if for every pair of sets in the\nsystem the
ir union is also in the system. Frankl in 1979 conjectured\nthat for any
such system there exists an element which is contained in\n½ of the sets i
n that system (the only exception being the family\ncontaining just the em
pty set). In this talk\, I will discuss how a\nsimple insight regarding t
he contrapositive of Frankl's conjecture\neventually led to the discovery
of an information theoretic approach\non the problem and a proof of the fi
rst constant lower bound.
DTSTART:20230501T151500Z
DTEND:20230501T161500Z
LAST-MODIFIED:20230601T135405Z
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-543
END:VEVENT
BEGIN:VEVENT
UID:65326265-6237-4235-b432-663833666563
DTSTAMP:20230604T064418Z
CREATED:20230313T182330Z
DESCRIPTION:Topic: General Discussion
DTSTART:20230501T160000Z
DTEND:20230501T170000Z
LAST-MODIFIED:20230428T185635Z
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-84
END:VEVENT
BEGIN:VEVENT
UID:31303064-3038-4062-b962-656438313030
DTSTAMP:20230604T064418Z
CREATED:20230303T140827Z
DESCRIPTION:Topic: Cluster finding optimized for HSC\, target selection for
PFS\n\nSpeakers: Marcelo Vicentin\n\nAffiliation: Universidade de São Pau
lo/Princeton University
DTSTART:20230501T190000Z
DTEND:20230501T200000Z
LAST-MODIFIED:20230428T143142Z
LOCATION:Zoom and Broadmead 102
SUMMARY:Princeton University HSC+PFS+Rubin Discussions
URL:https://www.ias.edu/sns/events/princeton-university-hscpfsrubin-discuss
ions-6
END:VEVENT
BEGIN:VEVENT
UID:38306463-3363-4934-a532-313366643937
DTSTAMP:20230604T064418Z
CREATED:20230414T135313Z
DESCRIPTION:Topic: Geometric Eisenstein Series over the Fargues-Fontaine Cu
rve\n\nSpeakers: Linus Hamann\n\nAffiliation: Princeton University\n\nGive
n a connected reductive group G and a Levi subgroup M\,\nBraverman-Gaistgo
ry and Laumon constructed geometric Eisenstein\nfunctors which take Hecke
eigensheaves on the moduli stack $Bun_{M}$\nof M-bundles on a curve to eig
ensheaves on the moduli stack $Bun_{G}$\nof G-bundles. Recently\, Fargues
and Scholze constructed a general\ncandidate for the local Langlands corre
spondence by doing geometric\nLanglands on the Fargues-Fontaine curve. In
this talk\, we explain\nrecent work on carrying the theory of geometric Ei
senstein series over\nto the Fargues-Scholze setting. In particular\, we e
xplain how\, given\nthe eigensheaf $S_{\chi}$ on $Bun_{T}$ attached to a s
mooth character\n$\chi$ of the maximal torus T\, one can construct an eige
nsheaf on\n$Bun_{G}$ under a certain genericity hypothesis on $\chi$\, by
applying\na geometric Eisenstein functor to $S_{\chi}$. Assuming the\nFarg
ues-Scholze correspondence satisfies certain expected properties\,\nwe ful
ly describe the stalks of this eigensheaf in terms of normalized\nparaboli
c inductions of the generic $\chi$. This explicit description\nof the eige
nsheaf has several useful applications to describing the\ncohomology of lo
cal and global Shimura varieties and\, time permitting\,\nwe will explain
this.
DTSTART:20230501T203000Z
DTEND:20230501T213000Z
LAST-MODIFIED:20230428T142836Z
LOCATION:Princeton University\, Fine Hall 314
SUMMARY:Joint IAS/Princeton University Arithmetic Geometry Seminar
URL:https://www.ias.edu/math/events/joint-iasprinceton-university-arithmeti
c-geometry-seminar-1
END:VEVENT
BEGIN:VEVENT
UID:37306639-3436-4633-b238-353137383935
DTSTAMP:20230604T064418Z
CREATED:20230307T142409Z
DESCRIPTION:Topic: Fitting Various Metrics with Minimum Disagreements\n\nSp
eakers: Euiwoong Lee\n\nAffiliation: University of Michigan\n\nLet C be a
class of metric spaces. We consider the following\ncomputational metric em
bedding problem: given a vector x in R^{n\nchoose 2} representing pairwise
distances between n points\, change the\nminimum number of entries of x t
o ensure that the new distances\ncorrespond to a metric in C. Several inst
antiations of this problem\nhave been actively studied in theoretical comp
uter science and machine\nlearning\, including Correlation Clustering (whe
n C is the class of\nuniform metrics) and Metric Violation Distance (when
C is the class of\nall metrics).\n\nWe present a unified framework and imp
roved approximation algorithms\nfor these metric embedding problems. One c
ommon tool is the\napplication of the 'pivot algorithm\,' originally devel
oped for uniform\nmetrics\, to more general metrics. We also use connectio
ns between\nmetric embedding and constraint satisfaction problems\, which
allows us\nto use stronger convex relaxations based on the Sherali-Adams\n
hierarchy.\n\nBased on joint work with Vincent Cohen-Addad\, Chenglin Fan\
, Arnaud de\nMesmay\, and Alantha Newman.\n\n
DTSTART:20230502T143000Z
DTEND:20230502T163000Z
LAST-MODIFIED:20230601T135438Z
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-535
END:VEVENT
BEGIN:VEVENT
UID:36633166-3861-4433-b638-333031333935
DTSTAMP:20230604T064418Z
CREATED:20230428T135755Z
DESCRIPTION:The Bahcall Lunch follows the astrophysics colloquium lecture.
DTSTART:20230502T163000Z
DTEND:20230502T173000Z
LAST-MODIFIED:20230428T135810Z
LOCATION:Gravity Initiative space\, 4th floor of Jadwin Hall\, Princeton U.
SUMMARY:Institute for Advanced Study / Princeton University Bahcall Lunch
URL:https://www.ias.edu/sns/events/institute-advanced-study-princeton-unive
rsity-bahcall-lunch-47
END:VEVENT
BEGIN:VEVENT
UID:64353734-3134-4464-a664-346565343835
DTSTAMP:20230604T064418Z
CREATED:20230426T143855Z
DESCRIPTION:Topic: Pointwise Ergodic Theorems for Nonconventional Polynomia
l Averages\n\nSpeakers: Ben Krause\n\nAffiliation: King's College London\n
\nI will discuss pointwise ergodic theory as it developed out of\nBourgain
's work in the 80s\, leading up to my work with Mirek and Tao\non bilinear
ergodic averages.
DTSTART:20230502T180000Z
DTEND:20230502T190000Z
LAST-MODIFIED:20230525T132228Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Special Year Research Seminar
URL:https://www.ias.edu/math/events/special-year-research-seminar-31
END:VEVENT
BEGIN:VEVENT
UID:34313165-3638-4663-b234-646263633030
DTSTAMP:20230604T064418Z
CREATED:20230202T193340Z
DESCRIPTION:
DTSTART:20230502T190000Z
DTEND:20230502T210000Z
LAST-MODIFIED:20230202T193436Z
LOCATION:Rubenstein Commons | Meeting Room 5
SUMMARY:Reading Seminar on Perelman's Stability Theorem
URL:https://www.ias.edu/math/events/reading-seminar-perelmans-stability-the
orem-8
END:VEVENT
BEGIN:VEVENT
UID:66623733-3835-4934-b864-663538356564
DTSTAMP:20230604T064418Z
CREATED:20221213T151511Z
DESCRIPTION:Topic: The Alt-Phillips Functional for Negative Powers\n\nSpeak
ers: Daniela De Silva\n\nAffiliation: Columbia University \n\nWe discuss a
one-phase degenerate free boundary problem which arises\nfrom the minimiz
ation of the so-called Alt-Phillips functional\n$$\int_\Omega (|\nabla u|^
2 + u^\gamma \chi_{\{u>0\}}) dx$$ for\n$\gamma \in (-2\,0).$ We establish
partial regularity results for the\nfree boundary and discuss the rigidity
of global minimizers when\n$\gamma$ approaches the endpoints of the inter
val of admissible\nvalues.
DTSTART:20230503T190000Z
DTEND:20230503T200000Z
LAST-MODIFIED:20230503T115416Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Analysis and Mathematical Physics
URL:https://www.ias.edu/math/events/analysis-and-mathematical-physics-10
END:VEVENT
BEGIN:VEVENT
UID:62323261-3466-4663-b434-386235336635
DTSTAMP:20230604T064418Z
CREATED:20230224T192808Z
DESCRIPTION:Topic: Migration of Low-mass Planets in Dusty Protoplanetary Di
sks\n\nSpeakers: Martin Pessah\n\nAffiliation: IAS and NBI\n\nFast inward
migration of planetary cores embedded in gaseous disks is\na common proble
m in the current planet formation paradigm. Even though\ndust is ubiquitou
s in protoplanetary disks\, its dynamical role in the\nmigration history o
f planetary embryos has not been considered until\nrecently. In this talk\
, I will show that the scattered pebble-flow\ninduced by a low-mass planet
ary embryo leads to an asymmetric\ndust-density distribution that is able
to exert a net torque. Building\non the results or a large suite of numeri
cal simulations for measuring\nthis dust torque under a wide range of cond
itions\, I will present the\nfirst study showing that dust torques can hav
e a significant impact on\nthe migration and formation history of planetar
y embryos.
DTSTART:20230504T150000Z
DTEND:20230504T160000Z
LAST-MODIFIED:20230428T134844Z
LOCATION:Bloomberg Lecture Hall
SUMMARY:Institute for Advanced Study Astrophysics Seminar
URL:https://www.ias.edu/sns/events/institute-advanced-study-astrophysics-se
minar-68
END:VEVENT
BEGIN:VEVENT
UID:64363063-3836-4637-a565-326565623061
DTSTAMP:20230604T064418Z
CREATED:20230427T141123Z
DESCRIPTION:Topic: “What is a Feynman Integral?”\n\nSpeakers: Holmfridur Ha
nnesdottir\n\nAffiliation: Member\, School of Natural Sciences
DTSTART:20230504T170000Z
DTEND:20230504T183000Z
LAST-MODIFIED:20230427T171433Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:What Is .... ?
URL:https://www.ias.edu/math/events/what-10
END:VEVENT
BEGIN:VEVENT
UID:63363965-6431-4764-b461-663535306666
DTSTAMP:20230604T064418Z
CREATED:20230123T152918Z
DESCRIPTION:Topic: Restricted Arithmetic Quantum Unique Ergodicity\n\nSpeak
ers: Peter Humphries\n\nAffiliation: University of Virginia\n\nThe quantum
unique ergodicity conjecture of Rudnick and Sarnak\nconcerns the mass equ
idistribution in the large eigenvalue limit of\nLaplacian eigenfunctions o
n negatively curved manifolds. This\nconjecture has been resolved by Linde
nstrauss when this manifold is\nthe modular surface assuming these eigenfu
nctions are additionally\nHecke eigenfunctions\, namely Hecke-Maass cusp f
orms. I will discuss a\nvariant of this problem in this arithmetic setting
concerning the mass\nequidistribution of Hecke-Maass cusp forms on subman
ifolds of the\nmodular surface.
DTSTART:20230504T203000Z
DTEND:20230504T213000Z
LAST-MODIFIED:20230515T143909Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Joint IAS/PU Number Theory Seminar
URL:https://www.ias.edu/math/events/joint-iaspu-number-theory-seminar-24
END:VEVENT
BEGIN:VEVENT
UID:64336462-3535-4361-a666-333436353432
DTSTAMP:20230604T064418Z
CREATED:20221205T205814Z
DESCRIPTION:Topic: Kahler-type and Tame Embeddings of Balls into Symplectic
Manifolds\n\nSpeakers: Michael Entov\n\nAffiliation: Technion–Israel Inst
itute of Technology\n\nA symplectic embedding of a disjoint union of domai
ns into a\nsymplectic manifold M is said to be of Kahler type (respectivel
y tame)\nif it is holomorphic with respect to some (not a priori fixed)\ni
ntegrable complex structure on M which is compatible with\n(respectively t
amed by) the symplectic form. I'll discuss when\nKahler-type embeddings of
disjoint unions of balls into a closed\nsymplectic manifold exist and whe
n two such embeddings can be mapped\ninto each other by a symplectomorphis
m. If time permits\, I'll also\ndiscuss the existence of tame embeddings o
f balls\, polydisks and\nparallelepipeds into tori and K3 surfaces.\n\nThi
s is a joint work with M.Verbitsky.
DTSTART:20230505T131500Z
DTEND:20230505T144500Z
LAST-MODIFIED:20230505T115641Z
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-118
END:VEVENT
BEGIN:VEVENT
UID:36336439-3863-4930-b831-646466333362
DTSTAMP:20230604T064418Z
CREATED:20230428T141728Z
DESCRIPTION:Topic: General Discussion
DTSTART:20230505T163000Z
DTEND:20230505T173000Z
LAST-MODIFIED:20230428T141743Z
LOCATION:Dome Room\, Peyton Hall or Zoom
SUMMARY:Princeton University Astroplasmas Seminar
URL:https://www.ias.edu/sns/events/princeton-university-astroplasmas-semina
r-48
END:VEVENT
BEGIN:VEVENT
UID:36653135-3231-4865-b261-373863393265
DTSTAMP:20230604T064418Z
CREATED:20230414T150847Z
DESCRIPTION:
DTSTART:20230505T210000Z
DTEND:20230505T210000Z
LAST-MODIFIED:20230503T143329Z
LOCATION:Wolfensohn Hall
SUMMARY:Celebrating Great Minds
URL:https://www.ias.edu/events/celebrating-great-minds
END:VEVENT
BEGIN:VEVENT
UID:65353162-3833-4265-b462-303936646466
DTSTAMP:20230604T064419Z
CREATED:20230320T133438Z
DESCRIPTION:Topic: Graph Vertex Expansion\n\nSpeakers: Theo McKenzie\n\nAff
iliation: Harvard University\n\nIn a vertex expanding graph\, every small
subset of vertices neighbors\nmany different vertices. Random graphs are n
ear-optimal vertex\nexpanders\; however\, it has proven difficult to creat
e families of\nDETERMINISTIC near-optimal vertex expanders\, as the connec
tion between\nvertex and spectral expansion is limited. We discuss success
ful\nattempts to create UNIQUE NEIGHBOR expanders (a weak version of verte
x\nexpansion)\, as well as limitations in using common combinatorial\nmeth
ods to create stronger expanders.
DTSTART:20230508T151500Z
DTEND:20230508T161500Z
LAST-MODIFIED:20230601T135506Z
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-545
END:VEVENT
BEGIN:VEVENT
UID:31396438-3836-4465-b265-303761633837
DTSTAMP:20230604T064419Z
CREATED:20230307T142534Z
DESCRIPTION:Topic: Using Expanders for Fast Graph Algorithms\n\nSpeakers: T
hatchaphol Saranurak\n\nAffiliation: University of Michigan\n\nIn the last
few years\, expanders have been used in fast graph\nalgorithms in differe
nt models\, including static\, dynamic\, and\ndistributed algorithms. I wi
ll survey these applications of\nexpanders\, explain the expander-related
tools behind this development\,\nthen give a tutorial on how to construct
some of these tools\, such as\nexpander decomposition.
DTSTART:20230509T143000Z
DTEND:20230509T163000Z
LAST-MODIFIED:20230601T135531Z
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-538
END:VEVENT
BEGIN:VEVENT
UID:31393563-3132-4963-b439-393738316433
DTSTAMP:20230604T064419Z
CREATED:20230426T143628Z
DESCRIPTION:Topic: Uniform Sets with Few Progressions via Colorings\n\nSpea
kers: Yufei Zhao\n\nAffiliation: Massachusetts Institute of Technology\n\n
Ruzsa asked whether there exist Fourier-uniform subsets of\n$\mathbb{Z}/N\
mathbb{Z}$ with very few 4-term arithmetic progressions\n(4-AP). The stand
ard pedagogical example of a Fourier uniform set with\na 'wrong' density o
f 4-APs actually has 4-AP density much higher than\nrandom. Can it instead
be much lower than random? Gowers constructed\nFourier uniform sets with
4-AP density at most $\alpha^{4+c}$. It\nremains open whether a superpolyn
omial decay is possible. We will\ndiscuss this question and some variants.
We relate it to an arithmetic\nRamsey question: can one $N^{o(1)}$-color
of $[N]$ avoiding\nsymmetrically-colored 4-APs?\n\nJoint work with Mingyan
g Deng and Jonathan Tidor.\n\n \n\n
DTSTART:20230509T180000Z
DTEND:20230509T190000Z
LAST-MODIFIED:20230525T132306Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Special Year Research Seminar
URL:https://www.ias.edu/math/events/special-year-research-seminar-30
END:VEVENT
BEGIN:VEVENT
UID:34313864-3132-4063-b261-306566393332
DTSTAMP:20230604T064419Z
CREATED:20230202T193449Z
DESCRIPTION:
DTSTART:20230509T190000Z
DTEND:20230509T210000Z
LAST-MODIFIED:20230202T193524Z
LOCATION:Rubenstein Commons | Meeting Room 5
SUMMARY:Reading Seminar on Perelman's Stability Theorem
URL:https://www.ias.edu/math/events/reading-seminar-perelmans-stability-the
orem-9
END:VEVENT
BEGIN:VEVENT
UID:65646230-3434-4530-b038-623766663439
DTSTAMP:20230604T064419Z
CREATED:20230313T170257Z
DESCRIPTION:Topic: The Hunt for Near Earth Asteroids\n\nSpeakers: Alain Mau
ry\n\nAffiliation: Asteroid Discoverer and Observatory Operator and Guide
\n\nAstronomers\, admittedly not reputed for their robust sense of humor\,
\nsometimes joke that the world would be a very different place if the\ndi
nosaurs had in place a space program sixty-five million years ago.\nThe di
nosaurs’ demise\, along with seventy percent of all species of\nlife on Ea
rth\, plus more recent harbingers such as Comet\nShoemaker-Levy 9 at Jupit
er a few decades ago\, motivated several\napocalyptic (and abysmally bad)
movies and an interest in discovering\nand characterizing Near Earth Aster
oids (NEAs). Astronomers believe\nthat with enough lead-time\, perhaps mea
sured in decades or centuries\,\npotentially catastrophic impacts could be
avoided by nudging dangerous\nobjects away from Earth-intersecting trajec
tories. At the dawn of the\nspace age\, 20 Near Earth Asteroids were known
\; in 1980\, the number\nreached 50. In 2000 we reached 1000 known NEAs. I
n 2022\, we passed the\n30000 mark\, and counting... Mr. Maury will descri
be his own experience\nof how this revolution occurred\, and why discoveri
ng more and smaller\nnear earth asteroids is important.
DTSTART:20230509T233000Z
DTEND:20230510T013000Z
LAST-MODIFIED:20230505T145547Z
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-20
END:VEVENT
BEGIN:VEVENT
UID:66343234-6334-4935-b661-313834663265
DTSTAMP:20230604T064419Z
CREATED:20230426T184540Z
DESCRIPTION:Speakers: Sarah Hernandez\n\nAffiliation: University of New Mex
ico\n\n_We Are the Stars: Honoring Our Literary Ancestors\n[https://www.ia
s.edu/sites/default/files/Hernandez_We-Are-the-Stars_poster_May-2023.pdf]\
,_ SARAH\nHERNANDEZ (University of New Mexico). Online lecture followed by
a\nconversation with DIANE WILSON\, author of _The Seed Keeper._\n\nCriti
cally examining the U.S. as a settler colonial nation\, this\nliterary ana
lysis re-centers Oceti Sakowin (historically known to some\nas the Sioux N
ation) women as their tribes’ traditional culture\nkeepers and culture bea
rers\, and it offers thoughtful connections\nbetween settler colonialism\,
literature\, nationalism\, and gender.\n\nSarah Hernandez (Sicangu Lakota
) is an assistant professor of Native\nAmerican Literature and the directo
r of the Institute for American\nIndian Research at the University of New
Mexico. She is a member of\nthe Oak Lake Writers Society\, an Oceti Sakowi
n-led nonprofit for\nDakota\, Nakota\, and Lakota writers. Together they l
aunched\n#NativeReads\, a community-based reading campaign and podcast ser
ies\nthat seeks to increase knowledge and appreciation of the Oceti Sakowi
n\nliterary tradition. Sarah is also the author of _We Are the Stars:\nCol
onizing and Decolonizing the Oceti Sakowin Literary Tradition_\, a\nlitera
ry study that recovers the literary work of Dakota women and\nfurthers dis
cussions on settler colonialism\, literature\, nationalism\,\nand gender.
\n\nDiane Wilson (Dakota) is a writer and educator\, who has published fou
r\naward-winning books as well as essays in numerous publications. Her\nfi
rst picture book\, _Where We Come From_\, co-written with John Coy\,\nSun
Yung Shin\, and Shannon Gibney\, was released in October 2022.\nWilson’s 2
021 novel\, _The Seed Keeper_ (Milkweed Editions)\nreceived the 2022 Minne
sota Book Award for Fiction. Her essays have\nappeared in many anthologies
\, including _Kinship: Belonging in a\nWorld of Relations_ (2021)\; _We Ar
e Meant to Rise_ (2021)\; and _A\nGood Time for the Truth_ (2016).\n\nPRE-
REGISTRATION IS REQUIRED: https://bit.ly/3La7lJU. After\nregistering\, you
will receive an email containing information about\njoining the event.
DTSTART:20230510T203000Z
DTEND:20230510T220000Z
LAST-MODIFIED:20230426T190323Z
LOCATION:Zoom Webinar
SUMMARY:We Are the Stars: Honoring Our Literary Ancestors
URL:https://www.ias.edu/hs/events/we-are-stars-honoring-our-literary-ancest
ors
END:VEVENT
BEGIN:VEVENT
UID:35306533-3931-4233-b562-616130383735
DTSTAMP:20230604T064419Z
CREATED:20230224T192854Z
DESCRIPTION:Topic: TBA\n\nSpeakers: Elena Murchikova\n\nAffiliation: The In
stitute for Advanced Study
DTSTART:20230511T150000Z
DTEND:20230511T160000Z
LAST-MODIFIED:20230224T192920Z
LOCATION:Bloomberg Lecture Hall
SUMMARY:Institute for Advanced Study Astrophysics Seminar
URL:https://www.ias.edu/sns/events/institute-advanced-study-astrophysics-se
minar-69
END:VEVENT
BEGIN:VEVENT
UID:65653439-6636-4961-a332-373739333935
DTSTAMP:20230604T064419Z
CREATED:20230417T171118Z
DESCRIPTION:Topic: What is Katz-Tao Discretization of Fractals?\n\nSpeakers
: Orit Raz\n\nAffiliation: Hebrew University\; Visitor\, School of Mathema
tics
DTSTART:20230511T170000Z
DTEND:20230511T183000Z
LAST-MODIFIED:20230505T130011Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:What Is .... ?
URL:https://www.ias.edu/math/events/what-9
END:VEVENT
BEGIN:VEVENT
UID:34326265-3031-4162-a464-613563363930
DTSTAMP:20230604T064419Z
CREATED:20230123T153810Z
DESCRIPTION:Topic: Harris-Venkatesh Plus Stark\n\nSpeakers: Robin Zhang\n\n
Affiliation: Columbia University\n\nThe class number formula describes the
behavior of the Dedekind zeta\nfunction at s=0 and s=1. The Stark and Gro
ss conjectures extend the\nclass number formula\, describing the behavior
of Artin L-functions and\np-adic L-functions at s=0 and s=1 in terms of un
its and class numbers.\nThe Harris-Venkatesh conjecture describes the resi
due of Stark units\nmodulo p\, giving a modular analogue to the Stark and
Gross conjectures\nwhile also serving as the first verifiable part of the
broader\nPrasanna-Venkatesh conjectures. In this talk\, I will give a pict
ure\,\nformulate a unified conjecture combining Harris-Venkatesh and Stark
\nfor weight one modular forms\, and describe the proof of this in the\nim
aginary dihedral case.
DTSTART:20230511T203000Z
DTEND:20230511T213000Z
LAST-MODIFIED:20230515T143826Z
LOCATION:Princeton University\, Fine Hall 214
SUMMARY:Joint IAS/PU Number Theory Seminar
URL:https://www.ias.edu/math/events/joint-iaspu-number-theory-seminar-26
END:VEVENT
BEGIN:VEVENT
UID:30633635-6237-4165-a334-663864663862
DTSTAMP:20230604T064419Z
CREATED:20230505T144433Z
DESCRIPTION:Topic: Fully-kinetic Simulations of Pulsar Magnetospheres and m
agnetic reconnection using WarpX\n\nSpeakers: Revathi Jambunathan\n\nAffil
iation: Lawrence Berkeley National Laboratory\n\nPulsars are rapidly rotat
ing neutron stars immersed in strong\nelectromagnetic fields that emit twi
n beams of electromagnetic\nradiation. However\, the plasma composition an
d structure in the region\nsurrounding pulsars\, called magnetospheres\, a
nd the physical processes\nthat drive particle acceleration leading to the
observed spectra are\nnot well understood. Global pulsar magnetosphere si
mulations are\nrequired to answer these questions. However\, resolving the
current\nsheet skin-depth which is six orders of magnitude smaller than t
he\npulsar radius for realistic systems\, is intractable even on large\nsu
percomputers. In this talk\, I present a two-pronged approach to\nstudy pa
rticle acceleration. First\, we use a “wide computational\nlens” to perfor
m global pulsar simulations with scaled-down\nenergies. I will present the
effect of magnetization on the plasma\nstructure in the magnetosphere and
particle energization. Second\, we\nuse a “focussed lens” to study relati
vistic reconnection in the\ncurrents sheets using a Harris-sheet set-up. F
or the reconnection\nsimulations\, we will also explore the use of ultra h
igh-order spectral\nmethods (PSATD) and compare its accuracy and efficienc
y with\ntraditional Yee methods. For our simulations\, we use WarpX\, a hi
ghly\nscalable\, electromagnetic PIC code with advanced algorithms to\nsim
ulate relativistic plasma on large-scale heterogeneous\nsupercomputers.
DTSTART:20230512T163000Z
DTEND:20230512T173000Z
LAST-MODIFIED:20230505T144528Z
LOCATION:Dome Room\, Peyton Hall or Zoom
SUMMARY:Princeton University Astroplasmas Seminar
URL:https://www.ias.edu/sns/events/princeton-university-astroplasmas-semina
r-49
END:VEVENT
BEGIN:VEVENT
UID:61393237-3535-4430-b461-643736626462
DTSTAMP:20230604T064419Z
CREATED:20230425T143723Z
DESCRIPTION:Topic: TBD
DTSTART:20230512T170000Z
DTEND:20230512T193000Z
LAST-MODIFIED:20230425T143825Z
LOCATION:Rubenstein Commons | Meeting Room 5
SUMMARY:Milnor Conjecture Learning Seminar
URL:https://www.ias.edu/math/events/milnor-conjecture-learning-seminar-13
END:VEVENT
BEGIN:VEVENT
UID:32633737-3130-4233-b330-613064333463
DTSTAMP:20230604T064419Z
CREATED:20230313T155128Z
DESCRIPTION:Topic: The Non-Axisymmetric Influence: Radius and Angle-Depende
nt Trends in a Barred Galaxy\n\nSpeakers: Carrie Filion\n\nAffiliation: Jo
hns Hopkins University\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:20230515T150000Z
DTEND:20230515T160000Z
LAST-MODIFIED:20230505T145013Z
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-70
END:VEVENT
BEGIN:VEVENT
UID:65323930-3661-4238-b732-353330626565
DTSTAMP:20230604T064419Z
CREATED:20230303T140853Z
DESCRIPTION:Topic: TBA
DTSTART:20230515T190000Z
DTEND:20230515T200000Z
LAST-MODIFIED:20230303T140916Z
LOCATION:Zoom and Peyton 025
SUMMARY:Princeton University HSC+PFS+Rubin Discussions
URL:https://www.ias.edu/sns/events/princeton-university-hscpfsrubin-discuss
ions-9
END:VEVENT
BEGIN:VEVENT
UID:32386162-6335-4432-a233-333366396438
DTSTAMP:20230604T064419Z
CREATED:20230426T132604Z
DESCRIPTION:Topic: Around Gauss Circle Problem: Hardy's Conjecture and the
Distribution of Lattice Points Near Circles\n\nSpeakers: Igor Wigman\n\nAf
filiation: King's College London\n\nThis talk is based on a joint work wit
h Steve Lester. \n\nWe review the Gauss circle problem\, and Hardy's conje
cture regarding\nthe order of magnitude of the remainder term. It is attem
pted to\nrigorously formulate the folklore heuristics behind Hardy's\nconj
ecture. Some weaker forms of the likely statement are proved to\nsupport i
t.
DTSTART:20230516T180000Z
DTEND:20230516T190000Z
LAST-MODIFIED:20230525T132335Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Special Year Research Seminar
URL:https://www.ias.edu/math/events/special-year-research-seminar-29
END:VEVENT
BEGIN:VEVENT
UID:33323831-3530-4230-a234-613462333530
DTSTAMP:20230604T064419Z
CREATED:20230202T193535Z
DESCRIPTION:
DTSTART:20230516T190000Z
DTEND:20230516T210000Z
LAST-MODIFIED:20230202T193557Z
LOCATION:Rubenstein Commons | Meeting Room 5
SUMMARY:Reading Seminar on Perelman's Stability Theorem
URL:https://www.ias.edu/math/events/reading-seminar-perelmans-stability-the
orem-10
END:VEVENT
BEGIN:VEVENT
UID:61306433-6337-4166-b732-366631613533
DTSTAMP:20230604T064419Z
CREATED:20221213T152011Z
DESCRIPTION:Topic: Resonances as a Computational Tool \n\nSpeakers: Kathar
ina Schratz\n\nAffiliation: Sorbonne Université\n\nA large toolbox of nume
rical schemes for dispersive equations has been\nestablished\, based on di
fferent discretization techniques such as\ndiscretizing the variation-of-c
onstants formula (e.g.\, exponential\nintegrators) or splitting the full e
quation into a series of simpler\nsubproblems (e.g.\, splitting methods).
In many situations\, these\nclassical schemes allow a precise and efficien
t approximation. This\,\nhowever\, drastically changes whenever non-smooth
phenomena enter the\nscene such as for problems at low regularity and hig
h oscillations.\nClassical schemes fail to capture the oscillatory nature
of the\nsolution\, and this may lead to severe instabilities and loss of\n
convergence. In this talk\, I present a new class of resonance based\nsche
mes. The key idea in the construction of the new schemes is to\ntackle and
deeply embed the underlying nonlinear structure of\nresonances into the n
umerical discretization. As in the continuous\ncase\, these terms are cent
ral to structure preservation and offer the\nnew schemes strong geometric
properties at low regularity.\n\nI will present the key idea behind resona
nces as a computational tool\,\ntheir high order counterpart (via tree ser
ies inspired by singular\nSPDEs)\, their error estimates in low regularity
spaces (via discrete\nBourgain spaces) and the fundamental yet widely ope
n question of\nresonance based schemes and structure preservation.
DTSTART:20230517T190000Z
DTEND:20230517T200000Z
LAST-MODIFIED:20230517T114454Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Analysis and Mathematical Physics
URL:https://www.ias.edu/math/events/analysis-and-mathematical-physics-11
END:VEVENT
BEGIN:VEVENT
UID:65363163-3239-4131-b162-643531343362
DTSTAMP:20230604T064419Z
CREATED:20230224T192939Z
DESCRIPTION:Topic: The cosmology of electron scalars\n\nSpeakers: Zach Wein
er\n\nAffiliation: University of Washington\n\nThe cosmic microwave backgr
ound is a sensitive probe of early-Universe\nphysics\, and yet fundamental
constants at recombination can differ\nfrom their present day values due
to degeneracies in the standard\ncosmological model. Such scenarios have b
een invoked to reconcile\ndiscrepant measurements of the present-day expan
sion rate\, but even\nabsent such motivation\, they raise the intriguing p
ossibility of\nyet-undiscovered physics coupled directly to the Standard M
odel. I\nwill discuss particle theories in which a new scalar field shifts
the\nelectron's mass at recombination\; viable models are already\nstring
ently constrained by measurements of quasar absorption lines\,\nthe abunda
nces of light elements\, and the universality of free fall. I\nwill show t
hat the remaining parameter space is exactly that which\nallows not only t
he primary cosmic microwave background but also\nlow-redshift distances to
be consistent with observations. After\npresenting the results of paramet
er inference I will discuss\nadditional cosmological and laboratory signat
ures of the model.
DTSTART:20230518T150000Z
DTEND:20230518T160000Z
LAST-MODIFIED:20230512T195643Z
LOCATION:Bloomberg Lecture Hall
SUMMARY:Institute for Advanced Study Astrophysics Seminar
URL:https://www.ias.edu/sns/events/institute-advanced-study-astrophysics-se
minar-70
END:VEVENT
BEGIN:VEVENT
UID:32356563-3766-4438-b138-363536373436
DTSTAMP:20230604T064419Z
CREATED:20230123T153416Z
DESCRIPTION:Topic: Symmetric Power Functoriality For Hilbert Modular Forms
\n\nSpeakers: Jack Thorne\n\nAffiliation: University of Cambridge\n\nSymme
tric power functoriality is one of the basic cases of Langlands'\nfunctori
ality conjectures and is the route to the proof of the\nSato-Tate conjectu
re (concerning the distribution of the\nmodulo p point counts of an ellipt
ic curve over Q\, as the\nprime p varies).\n\nI will discuss the proof of
the existence of the symmetric power\nliftings of Hilbert modular forms of
regular weight. The proof uses\nautomorphy lifting theorems\, automorphic
forms on unitary groups\, and\nthe geometry of Shimura varieties\, as wel
l as the fact that Spec Z is\nsimply connected.\n\nThis is joint work with
James Newton.
DTSTART:20230518T203000Z
DTEND:20230518T213000Z
LAST-MODIFIED:20230518T115438Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Joint IAS/PU Number Theory Seminar
URL:https://www.ias.edu/math/events/joint-iaspu-number-theory-seminar-25
END:VEVENT
BEGIN:VEVENT
UID:66306435-3366-4439-b565-636232656261
DTSTAMP:20230604T064419Z
CREATED:20230410T203328Z
DESCRIPTION:Oppenheimer\, Technology\, and Humanity\n\nA Conversation and Q
&A with Kai Bird\n\nThursday\, May 18\, 5:30 p.m.\n\nWolfensohn Hall \n\nK
ai Bird is a historian\, journalist\, and executive director and\ndistingu
ished lecturer at CUNY Graduate Center’s Leon Levy Center\nfor Biography i
n New York City. Hear him in conversation with IAS\nDirector David Nirenbe
rg as they discuss the Pulitzer Prize-winning\nbiography\, _American Prome
theus: The Triumph and Tragedy of J. Robert\nOppenheimer_\, and the comple
x legacy of the theoretical physicist and\nformer director of theInstitute
for Advanced Study\, J. Robert\nOppenheimer.
DTSTART:20230518T213000Z
DTEND:20230518T213000Z
LAST-MODIFIED:20230516T104704Z
LOCATION:Wolfensohn Hall
SUMMARY:Oppenheimer\, Technology\, and Humanity
URL:https://www.ias.edu/events/oppenheimer-technology-and-humanity
END:VEVENT
BEGIN:VEVENT
UID:36633732-3631-4836-b137-303266633834
DTSTAMP:20230604T064419Z
CREATED:20221205T205853Z
DESCRIPTION:Topic: The Toda Lattice\, Billiards and the Viterbo Conjecture
\n\nSpeakers: Vinicius Gripp Barros Ramos\n\nAffiliation: Instituto Nacion
al de Matemática Pura e Aplicada\; von Neumann Fellow\, School of Mathemat
ics\n\nThe Toda lattice is one of the earliest examples of non-linear\ncom
pletely integrable systems. Under a large deformation\, the\nHamiltonian f
low can be seen to converge to a billiard flow in a\nsimplex. In the 1970s
\, action-angle coordinates were computed for the\nstandard system using a
non-canonical transformation and some spectral\ntheory. In this talk\, I
will explain how to adapt these coordinates to\nthe situation to a large d
eformation and how this leads to new\nexamples of symplectomorphisms of La
grangian products with toric\ndomains. In particular\, we find a sequence
of Lagrangian products\nwhose symplectic systolic ratio is one and we prov
e that they are\nsymplectic balls. This is joint work with Y. Ostrover and
D. Sepe.
DTSTART:20230519T131500Z
DTEND:20230519T144500Z
LAST-MODIFIED:20230519T121723Z
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-119
END:VEVENT
BEGIN:VEVENT
UID:61666461-6239-4436-b561-656636343339
DTSTAMP:20230604T064419Z
CREATED:20230313T155149Z
DESCRIPTION:Topic: TBA\n\nEach week\, we hold a relatively informal seminar
/discussion series\nwith an emphasis on extra-galactic and large-scale str
ucture\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 g
reater\ndetail than may be explained within the text of the article. To ai
d\nwith discussion\, only the article PDF is presented -- no\npowerpoint-s
tyle slides. Galread discussions are very friendly and\ninteractive.
DTSTART:20230522T150000Z
DTEND:20230522T160000Z
LAST-MODIFIED:20230313T155203Z
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-73
END:VEVENT
BEGIN:VEVENT
UID:33393134-3830-4239-b164-633762643630
DTSTAMP:20230604T064419Z
CREATED:20230224T193002Z
DESCRIPTION:Topic: From Gaia to LISA: white dwarfs at the centre of the ste
llar revolution\n\nSpeakers: Ilaria Caiazzo\n\nAffiliation: California Ins
titute of Technology\n\nThis is an exciting time for stellar astrophysics
as high-cadence time\ndomain surveys (Gaia\, PTF\, ZTF\, ATLAS\, Kepler\,
TESS\, and\, in the near\nfuture\, the Vera Rubin Observatory) are revolut
ionizing the landscape\nof stellar studies by allowing the exploration of
the dynamic sky.\nFurthermore\, spectroscopic surveys are ongoing (SDSS V\
, DESI\, WEAVE\,\n4MOST etc.)\, which will provide spectral classificatio
ns for\nmillions of stars. Space missions are also opening new windows on
\nstars and their remnants: 2021 alone saw the launch of JWST\, with its\n
unprecedented sensitivity in the infrared\, and the first public\nrelease
of the all-sky X-ray telescope eROSITA. And LISA and Roman are\njust aroun
d the corner. White dwarfs are at the center of this stellar\nrevolution\,
as the new facilities have enabled tackling some unsolved\nmysteries conc
erning white dwarfs and their far-reaching implications\nfor many fields o
f astrophysics\, from the evolution of stars and their\nplanetary systems\
, to supernovae\, to multimessenger sources. In my\ntalk\, I will show how
the precise astrometry from Gaia has\ndramatically improved our capabilit
y of studying young star clusters\,\nand therefore probe the evolution of
white dwarfs born from single\nprogenitor stars. On the other hand\, the Z
wicky Transient Facility is\nshedding light on the evolution of white dwar
fs in binary systems and\nfinding the final products of such binaries. In
fact\, with ZTF we\nare discovering a large number of white-dwarf merger
remnants that can\nhelp us constrain the pathways of binary evolution that
lead to\nmerger\, the number of mergers in the Galaxy and their contribut
ion to\nthe type Ia supernova rate\, as well as help us understand the ori
gin\nof strong magnetic fields in white dwarfs. I will present some early
\nresults of the search\, including the discovery of some extremely\npecul
iar white dwarfs.
DTSTART:20230525T150000Z
DTEND:20230525T160000Z
LAST-MODIFIED:20230522T152944Z
LOCATION:Bloomberg Lecture Hall
SUMMARY:Institute for Advanced Study Astrophysics Seminar
URL:https://www.ias.edu/sns/events/institute-advanced-study-astrophysics-se
minar-71
END:VEVENT
BEGIN:VEVENT
UID:64333633-3237-4762-b338-666661333464
DTSTAMP:20230604T064419Z
CREATED:20221205T205933Z
DESCRIPTION:Topic: TBA\n\nSpeakers: Joé Brendel\n\nAffiliation: Tel Aviv Un
iversity
DTSTART:20230526T131500Z
DTEND:20230526T144500Z
LAST-MODIFIED:20230509T130257Z
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-120
END:VEVENT
BEGIN:VEVENT
UID:37373662-6132-4366-b466-356134303663
DTSTAMP:20230604T064419Z
CREATED:20230425T144108Z
DESCRIPTION:Topic: TBD
DTSTART:20230526T170000Z
DTEND:20230526T193000Z
LAST-MODIFIED:20230425T144121Z
LOCATION:Rubenstein Commons | Meeting Room 5
SUMMARY:Milnor Conjecture Learning Seminar
URL:https://www.ias.edu/math/events/milnor-conjecture-learning-seminar-18
END:VEVENT
BEGIN:VEVENT
UID:36653636-6139-4433-a434-373966353533
DTSTAMP:20230604T064419Z
CREATED:20230313T155210Z
DESCRIPTION:Topic: TBA\n\nEach week\, we hold a relatively informal seminar
/discussion series\nwith an emphasis on extra-galactic and large-scale str
ucture\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 g
reater\ndetail than may be explained within the text of the article. To ai
d\nwith discussion\, only the article PDF is presented -- no\npowerpoint-s
tyle slides. Galread discussions are very friendly and\ninteractive.
DTSTART:20230529T150000Z
DTEND:20230529T160000Z
LAST-MODIFIED:20230313T155224Z
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-74
END:VEVENT
BEGIN:VEVENT
UID:64303964-6236-4462-b063-653039663162
DTSTAMP:20230604T064419Z
CREATED:20230303T140924Z
DESCRIPTION:Topic: TBA
DTSTART:20230529T190000Z
DTEND:20230529T200000Z
LAST-MODIFIED:20230303T140951Z
LOCATION:Zoom and Broadmead 102
SUMMARY:Princeton University HSC+PFS+Rubin Discussions
URL:https://www.ias.edu/sns/events/princeton-university-hscpfsrubin-discuss
ions-10
END:VEVENT
BEGIN:VEVENT
UID:38376139-6330-4663-b535-323337333239
DTSTAMP:20230604T064419Z
CREATED:20230504T183544Z
DESCRIPTION:Topic: Measure Doubling for Small Sets in SO(3\,R)\n\nSpeakers:
Yifan Jing\n\nAffiliation: University of Oxford\n\nLet SO(3\,R) be the 3D
-rotation group equipped with the real-manifold\ntopology and the normaliz
ed Haar measure \mu. Confirming a conjecture\nby Breuillard and Green\, we
show that if A is an open subset of\nSO(3\,R) with sufficiently small mea
sure\, then \mu(A^2) > 3.99 \mu(A).\nThis is joint work with Chieu-Minh Tr
an (NUS) and Ruixiang Zhang\n(Berkeley).
DTSTART:20230530T180000Z
DTEND:20230530T190000Z
LAST-MODIFIED:20230530T123301Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Special Year Research Seminar
URL:https://www.ias.edu/math/events/special-year-research-seminar-32
END:VEVENT
BEGIN:VEVENT
UID:66333531-3031-4634-a637-616539383432
DTSTAMP:20230604T064419Z
CREATED:20230517T143206Z
DESCRIPTION:
DTSTART:20230530T190000Z
DTEND:20230530T210000Z
LAST-MODIFIED:20230517T143328Z
LOCATION:Rubenstein Commons | Meeting Room 5
SUMMARY:Reading Seminar on Perelman's Stability Theorem
URL:https://www.ias.edu/math/events/reading-seminar-perelmans-stability-the
orem-7
END:VEVENT
BEGIN:VEVENT
UID:63343735-3738-4566-a466-613532626631
DTSTAMP:20230604T064419Z
CREATED:20230126T151538Z
DESCRIPTION:Topic: On Dynamics of B-free Systems Generated by Behrend Sets
\n\nSpeakers: Stanisław Kasjan\n\nAffiliation: Nicolaus Copernicus Univers
ity \n\nLink to Abstract [/media/221101]
DTSTART:20230606T180000Z
DTEND:20230606T190000Z
LAST-MODIFIED:20230524T172318Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Special Year Research Seminar
URL:https://www.ias.edu/math/events/special-year-research-seminar-18
END:VEVENT
BEGIN:VEVENT
UID:36396365-6637-4565-b261-333635633339
DTSTAMP:20230604T064419Z
CREATED:20230601T141737Z
DESCRIPTION:STEERING AI FOR THE PUBLIC GOOD: A DIALOGUE FOR THE FUTURE \n\n
Tuesday\, June 6\, 2023\n5:30 PM\nInstitute for Advanced Study\nWolfensohn
Hall\nOne Einstein Drive\nPrinceton\, New Jersey\nFree and open to the pu
blic with registration\, in person or online.\n \nRecent\, rapid developme
nts in artificial intelligence (AI) research\nand deployment have demonstr
ated technology’s potential to\ndrastically transform and potentially impr
ove the lives of many people\nacross the world. From unlocking millions of
hours’ worth of\nbiological research in a fraction of the time to reducin
g the amount\nof energy used by industrial power plants\, the use of AI co
uld power\nthe change needed to combat some of the most pressing issues of
our\ntime. But robust\, adaptive strategies\, including practices and\npo
licies\, are needed to ensure that AI technology will benefit all of\nhuma
nity. Strategies to ensure that AI tools are developed and used\nresponsib
ly must be a fundamental part of the development process\nrather than an a
fterthought. \n \nCalls to steer AI systems for good have come from many q
uarters\,\nincluding from researchers\, industry leaders\, policymakers\,
and the\npublic. These varied perspectives suggest a continuum of proximat
e and\nfuture areas of concern such as destabilization of the employment\n
sector and in worker experience\, bias and discrimination\, security\nvuln
erabilities\, sustainability issues\, the erosion of democracy and\npublic
trust\, catastrophic outcomes\, and more. Sociotechnical\nstrategies—tech
nical accountability mechanisms\, iterative design and\ndeployment practic
es\, and agile government policies—are needed to\nensure these powerful te
chnologies are developed ethically and safely.\n\nJoin a panel of computer
scientists\, social scientists\, technology\ndevelopers\, and policymaker
s for discussion of how the research\ncommunity\, industry\, government\,
civil society\, and the public can\nwork collaboratively on strategies for
the development of AI systems\nthat embed a diverse and representative ra
nge of humanity’s\npriorities and advance democratic values. \n
DTSTART:20230606T213000Z
DTEND:20230606T213000Z
LAST-MODIFIED:20230602T172801Z
LOCATION:Wolfensohn Hall
SUMMARY:Steering AI for the Public Good: A Dialogue for the Future
URL:https://www.ias.edu/events/steering-ai-public-good-dialogue-future
END:VEVENT
BEGIN:VEVENT
UID:32643564-3230-4265-b138-343135376639
DTSTAMP:20230604T064419Z
CREATED:20230531T130107Z
DESCRIPTION:Topic: TBD
DTSTART:20230609T170000Z
DTEND:20230609T193000Z
LAST-MODIFIED:20230531T130135Z
LOCATION:Rubenstein Commons | Meeting Room 5
SUMMARY:Milnor Conjecture Learning Seminar
URL:https://www.ias.edu/math/events/milnor-conjecture-learning-seminar-19
END:VEVENT
BEGIN:VEVENT
UID:63636338-3739-4863-b163-643930323432
DTSTAMP:20230604T064419Z
CREATED:20230313T170322Z
DESCRIPTION:Topic: TBA
DTSTART:20230613T233000Z
DTEND:20230614T013000Z
LAST-MODIFIED:20230313T170338Z
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-21
END:VEVENT
END:VCALENDAR