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UID:64303230-3139-4638-b863-643861346534
X-WR-TIMEZONE:UTC
X-WR-CALNAME:IAS Academic
BEGIN:VEVENT
UID:64396561-6265-4766-b131-303464313165
DTSTAMP:20220123T174848Z
CREATED:20210920T150625Z
DESCRIPTION:Topic: Compact Object Modeling in the Globular Cluster 47 Tucan
ae\n\nSpeakers: Claire Ye\n\nAffiliation: CIERA/Northwestern University\n
\nEach week\, we hold a relatively informal seminar/discussion series\nwit
h an emphasis on extra-galactic and large-scale structure\nastrophysics.\n
\nDuring Galread a leader/visitor presents a recent paper to the\ndiscussi
on group. The PDF of the paper is projected onto a large\nscreen\, and a g
uest explains the paper\, section by section\, in greater\ndetail than may
be explained within the text of the article. To aid\nwith discussion\, on
ly the article PDF is presented -- no\npowerpoint-style slides. Galread di
scussions are very friendly and\ninteractive.\n
DTSTART:20211025T150000Z
DTEND:20211025T160000Z
LAST-MODIFIED:20211022T160141Z
LOCATION:Virtual Meeting
SUMMARY:Princeton University Galread [Galactic/Extragalactic Reading Group]
URL:https://www.ias.edu/sns/events/princeton-university-galread-galacticext
ragalactic-reading-group-30
END:VEVENT
BEGIN:VEVENT
UID:66326565-3932-4937-b334-663564386333
DTSTAMP:20220123T174848Z
CREATED:20210720T150344Z
DESCRIPTION:Topic: Locally testable codes with constant rate\, distance\, a
nd locality\, Part I\n\nSpeakers: Irit Dinur\n\nAffiliation: Weizmann Inst
itute\n\nA locally testable code (LTC) is an error correcting code that ad
mits\na very efficient membership test. The tester reads a constant number
\nof (randomly - but not necessarily uniformly - chosen) bits from a\ngive
n word and rejects words with probability proportional to their\ndistance
from the code. \n\nLTCs were initially studied as important components of
PCPs\, and since\nthen the topic has evolved on its own. High rate LTCs co
uld be useful\nin practice: before attempting to decode a received word\,
one can save\ntime by first quickly testing if it is close to the code. \n
\nAn outstanding open question has been whether there exist LTCs that\nare
'good' in the coding theory sense of having both constant relative\ndista
nce and rate\, and at the same time testable with\na _CONSTANT_ number of
queries.\n\nIn this talk\, I will describe a construction of such codes ba
sed on a\nnew object called a left-right Cayley complex.\n\nJoint work wit
h Shai Evra\, Ron Livne\, Alex Lubotzky\, and Shahar Mozes.\n
DTSTART:20211025T151500Z
DTEND:20211025T161500Z
LAST-MODIFIED:20211025T172139Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Computer Science/Discrete Mathematics Seminar I
URL:https://www.ias.edu/math/events/computer-sciencediscrete-mathematics-se
minar-i-489
END:VEVENT
BEGIN:VEVENT
UID:64333736-3861-4132-b635-356461623166
DTSTAMP:20220123T174848Z
CREATED:20210716T154221Z
DESCRIPTION:Topic: Tracing Dynamical Evolution of Planetary Systems: From P
rotoplanets to Young and Mature Planetary Systems\n\nSpeakers: Jiayin Dong
\n\nAffiliation: Penn State University\n\nDynamical tracers of planets\, s
uch as their eccentricity\, inclination\,\norbital obliquity\, and spin ra
te\, can be used to constrain and refine\nplanet formation and evolution p
rocesses. I will begin the talk with\nmature planetary systems and show ho
w the eccentricity and stellar\nobliquity of Warm Jupiters\, giant planets
with orbital periods of\n8–200 days\, can be used to constrain their orig
in channels. Using a\ncatalog of Warm Jupiters discovered by TESS\, we fin
d Warm Jupiters are\nlikely coming from multiple origin channels. I will t
hen move on to\nyounger planetary systems and discuss how debris disks can
be used as\na probe of young planetary system architectures. I will show
if/how\nhidden planets could compromise our interpretation of the\ndetecte
d/assumed planet’s properties. In most system configurations\,\nfortunatel
y\, the debris disk feature is dominated by a single planet.\nLastly\, I w
ill talk about protoplanets and how giant planets accrete\nvia their circu
mplanetary disks\, reflecting on their spin rates. For a\nweakly magnetize
d planet\, I will show the maximum spin rate the planet\ncan reach is regu
lated by its circumplanetary disk’s boundary layer\nand the maximum value
is only about 60–80% of the planet’s breakup\nrate\, in contrast to the cl
assical picture.\n
DTSTART:20211025T160000Z
DTEND:20211025T170000Z
LAST-MODIFIED:20211022T160348Z
LOCATION:Virtual Meeting
SUMMARY:Princeton University Extrasolar Planet Discussion Group
URL:https://www.ias.edu/sns/events/princeton-university-extrasolar-planet-d
iscussion-group-36
END:VEVENT
BEGIN:VEVENT
UID:36653663-3633-4539-a336-376236383139
DTSTAMP:20220123T174848Z
CREATED:20210920T162705Z
DESCRIPTION:Topic: Numerical Construction of Wave Dark Matter Halos\n\nSpea
kers: Tomer Yavetz\n\nAffiliation: Columbia University\n\nThe prospect of
an ultra-light dark matter particle (also known as\nFuzzy Dark Matter\, or
FDM) has recently drawn attention as a promising\nalternative to standard
Cold Dark Matter (CDM). When the mass of the\nparticle reaches below 10^-
21 eV\, quantum effects can suppress\nstructure formation on galactic scal
es\, potentially alleviating\nStandard CDM's small-scale tensions. However
\, a central challenge\nposed by FDM is the difficulty of simulating it in
large volumes\;\nsimulations that numerically evolve the Schrödinger-Pois
son system\nmust resolve down to the de Broglie wavelength\, making it pra
ctically\nimpossible to simulate a Milky-Way-like galaxy with today's\ncom
putational resources. I will present a wave generalization of the\nclassic
Schwarzschild method for constructing self-consistent halos --\nsuch a ha
lo consists of a suitable superposition of waves instead of\nparticle orbi
ts\, chosen to yield a desired mean density profile. I\nwill demonstrate t
hat this construction method allows us to reliably\nsimulate FDM halos at
a fraction of the computational cost of typical\nFDM simulations. I will s
hare a few preliminary results we have\nobtained using our construction me
thod\, and discuss several tests of\nFDM that we can now run more efficien
tly with this code.\n \n\nREGISTRATION\n[https://forms.ias.edu/form/sns-pu
-ias-joint-cosmology-lunch]\n
DTSTART:20211025T163000Z
DTEND:20211025T180000Z
LAST-MODIFIED:20211020T162227Z
LOCATION:Zoom\; IAS\, West Seminar Room\;
SUMMARY:Institute for Advanced Study/Princeton University Early Universe/Co
smology Lunch Discussion
URL:https://www.ias.edu/sns/events/institute-advanced-studyprinceton-univer
sity-early-universecosmology-lunch-discussion-27
END:VEVENT
BEGIN:VEVENT
UID:35646534-3030-4730-a363-626661633735
DTSTAMP:20220123T174848Z
CREATED:20210916T220029Z
DESCRIPTION:Topic: A (slightly less) brief look into the restricted 3-body
problem\n\nSpeakers: Agustin Moreno\n\nAffiliation: Member\, School of Mat
hematics\n\nDespite the fact that the 3-body problem is an ancient conundr
um that\ngoes back to Newton\, it is remarkably poorly understood\, and is
still\na benchmark for modern developments. In this talk\, I will give a
\n(very) biased account of this classical problem\, both from a modern\nth
eoretical perspective\, i.e. outlining possible lines of attack\ncoming fr
om symplectic geometry\, holomorphic curves and Floer theory\;\nas well as
comment on practical and numerical aspects\, within the\ncontext of findi
ng orbits for space mission design and ocean worlds\nexploration.\n
DTSTART:20211025T180000Z
DTEND:20211025T190000Z
LAST-MODIFIED:20211025T172715Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Members’ Colloquium
URL:https://www.ias.edu/math/events/members-colloquium-11
END:VEVENT
BEGIN:VEVENT
UID:38396636-3538-4136-b164-666334626537
DTSTAMP:20220123T174848Z
CREATED:20210928T185550Z
DESCRIPTION:Topic: Mirror symmetry from the SYZ base\n\nSpeakers: Benjamin
Gammage\n\nAffiliation: Harvard University\n\nThe Gross-Siebert program su
ggests that mirror symmetry is mediated by\nthe combinatorial data of a du
al pair of integral affine manifolds\nwith singularities and polyhedral de
composition. Much is now\nunderstood about the passage from the combinator
ial data to complex\nspaces 'near the large complex structure limit' - a t
oric degeneration\nand its smoothing. In this talk\, we discuss the mirror
procedure for\nmoving from the combinatorial data to symplectic spaces 'n
ear the\nlarge volume limit' - a Weinstein symplectic manifold and its\nco
mpactification -- and we will explain a proof of homological mirror\nsymme
try between the complex and symplectic manifold associated to\nlocal piece
s of the combinatorial data. This is part of a program with\nVivek Shende
to prove homological mirror symmetry over a global SYZ\nbase.\n
DTSTART:20211025T200000Z
DTEND:20211025T213000Z
LAST-MODIFIED:20211105T184010Z
LOCATION:Fine Hall 314\, Princeton University
SUMMARY:Joint IAS/Princeton University Symplectic Geometry Seminar
URL:https://www.ias.edu/math/events/joint-iasprinceton-university-symplecti
c-geometry-seminar-167
END:VEVENT
BEGIN:VEVENT
UID:66373466-3138-4462-a564-386264623166
DTSTAMP:20220123T174848Z
CREATED:20210720T151148Z
DESCRIPTION:Topic: Locally testable codes with constant rate\, distance\, a
nd locality\, Part II\n\nSpeakers: Irit Dinur\n\nAffiliation: Weizmann Ins
titute\n\nA locally testable code (LTC) is an error correcting code that a
dmits\na very efficient membership test. The tester reads a constant numbe
r\nof (randomly - but not necessarily uniformly - chosen) bits from a\ngiv
en word and rejects words with probability proportional to their\ndistance
from the code. \n\nLTCs were initially studied as important components of
PCPs\, and since\nthen the topic has evolved on its own. High rate LTCs c
ould be useful\nin practice: before attempting to decode a received word\,
one can save\ntime by first quickly testing if it is close to the code.
\n\nAn outstanding open question has been whether there exist LTCs that\na
re 'good' in the coding theory sense of having both constant relative\ndis
tance and rate\, and at the same time testable with\na _CONSTANT_ number o
f queries.\n\nIn this talk\, I will describe a construction of such codes
based on a\nnew object called a left-right Cayley complex.\n\nJoint work w
ith Shai Evra\, Ron Livne\, Alex Lubotzky\, and Shahar Mozes.\n
DTSTART:20211026T143000Z
DTEND:20211026T163000Z
LAST-MODIFIED:20211026T170342Z
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-485
END:VEVENT
BEGIN:VEVENT
UID:64636137-6134-4634-b566-623437616537
DTSTAMP:20220123T174848Z
CREATED:20190726T150002Z
DESCRIPTION:
DTSTART:20211026T161500Z
DTEND:20211026T180000Z
LAST-MODIFIED:20190726T150002Z
LOCATION:Dilworth Room
SUMMARY:Institute for Advanced Study / Princeton University Bahcall Lunch
URL:https://www.ias.edu/events/institute-advanced-study-princeton-universit
y-bahcall-lunch-130
END:VEVENT
BEGIN:VEVENT
UID:35323463-6361-4162-b161-646662326565
DTSTAMP:20220123T174848Z
CREATED:20210928T143828Z
DESCRIPTION:Topic: On embeddings of manifolds\n\nSpeakers: Dishant Mayurbha
i Pancholi\n\nAffiliation: Chennai Mathematical Institute\; von Neumann Fe
llow\, School of Mathematics\n\nWe will discuss embeddings of manifolds wi
th a view towards\napplications in contact and symplectic category.
DTSTART:20211026T180000Z
DTEND:20211026T190000Z
LAST-MODIFIED:20211026T204936Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Seminar in Analysis and Geometry
URL:https://www.ias.edu/math/events/seminar-analysis-and-geometry-1
END:VEVENT
BEGIN:VEVENT
UID:37323139-6638-4263-b962-326136303962
DTSTAMP:20220123T174848Z
CREATED:20211004T161119Z
DESCRIPTION:Topic: Existence of an unbounded nodal hypersurface for smooth
Gaussian fields in dimension d > 2\n\nSpeakers: Hugo Duminil-Copin\n\nAffi
liation: Institut des Hautes Études Scientifiques\n\nFor the Bargmann--Foc
k field on $R^d$ with $d > 2$\, we prove that the\ncritical level $l_c(d)$
of the percolation model formed by the\nexcursion sets $\{ f \ge l \}$ is
strictly positive. This implies that\nfor every l sufficiently close to 0
(in particular for the nodal\nhypersurfaces corresponding to the case $l=
0$)\, $\{ f = l \}$ contains\nan unbounded connected component that visits
'most' of the ambient\nspace. Our findings (joint work with A. Rivera\, P
F Rodriguez\, and H.\nVanneuville) actually hold for a more general class
of positively\ncorrelated smooth Gaussian fields with rapid decay of corre
lations. A\nconsequence of this result combined with a result of A. Rivera
is that\nMonochromatic Random Wave in high dimensions percolates almost s
urely.\n
DTSTART:20211026T200000Z
DTEND:20211026T210000Z
LAST-MODIFIED:20211026T205015Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Special Seminar
URL:https://www.ias.edu/math/events/special-seminar-65
END:VEVENT
BEGIN:VEVENT
UID:37363861-3334-4536-b362-663962666663
DTSTAMP:20220123T174848Z
CREATED:20210917T203419Z
DESCRIPTION:Topic: No seminar: Simons Conference\n\nEveryone is invited to
the Simons 2021 workshop on High Dimensional\nExpanders in NY.\n\nSee\nhtt
ps://www.simonsfoundation.org/event/2021-mps-conference-on-high-dimensiona
l-expanders/\n
DTSTART:20211027T150000Z
DTEND:20211027T161500Z
LAST-MODIFIED:20211022T164850Z
LOCATION:
SUMMARY:Arithmetic Groups
URL:https://www.ias.edu/math/events/arithmetic-groups-2
END:VEVENT
BEGIN:VEVENT
UID:62613335-6532-4264-b630-356132373536
DTSTAMP:20220123T174848Z
CREATED:20211022T162030Z
DESCRIPTION:Topic: Star formation thresholds and the density PDF\n\nSpeaker
s: Shivan Khullar\n\nAffiliation: University of Toronto\, Canadian Institu
te for Astrophysics\n\nLocal star formation thresholds proposed in the lit
erature typically\nrefer to a gas density above which star formation occur
s. There has\nbeen plenty of debate regarding the existence of such a thre
shold. I\nwill discuss how we can search for a threshold in simulations\,
recover\nit from observations\, and link this star formation threshold to
the\ngas density PDF in molecular clouds. Using simulations of supersonic\
,\nisothermal\, self-gravitating turbulence\, we can systematically study
\nthe variation of the density PDF with global cloud properties like the\n
Mach number or Virial parameter\, and come up with analytical relations\nt
hat describe this dependence I will highlight how the different\nmoving pa
rts of the density PDF can be determined in terms of these\nglobal cloud p
arameters.\n
DTSTART:20211027T150000Z
DTEND:20211027T160000Z
LAST-MODIFIED:20211027T124315Z
LOCATION:Virtual Meeting
SUMMARY:Princeton University Star Formation/ISM Rendezvous (SFIR)
URL:https://www.ias.edu/sns/events/princeton-university-star-formationism-r
endezvous-sfir-13
END:VEVENT
BEGIN:VEVENT
UID:37323330-3536-4636-b266-653762393564
DTSTAMP:20220123T174848Z
CREATED:20211014T185408Z
DESCRIPTION:Topic: Where to Find Millions of Books and How to 'Read' Them:
HathiTrust and HTRC\n\nSpeaker: RYAN DUBNICEK\, Digital Humanities Special
ist\, HathiTrust\nResearch Center\n\nThis workshop will introduce attendee
s to the HathiTrust Research\nCenter’s tools and services for utilizing th
e\nmassive HathiTrust Digital Library for computational text analysis.\nTh
e HTRC leverages the scope and scale of the HathiTrust corpus to\nallow re
searchers the opportunity to perform text data mining. Topics\nthat will b
e covered include:\n\n * How the HTRC makes HathiTrust volumes available f
or text mining.\n * How to identify relevant volumes and build worksets (c
ollections)\nof content for analysis.\n * How to use HTRC off-the-shelf to
ols for text analysis and\nvisualization.\n * How to access HathiTrust dat
a and metadata via provided APIs\,\nrequest procedures\, and open datasets
.\n\nREGISTER IN ADVANCE: https://bit.ly/3oX3dne\n[https://urldefense.com/
v3/__https:/bit.ly/3oX3dne__\;!!DZ3fjg!qxyh4GIB9E5FBQWoQ8W33oslmgEkH0mlKw5
cp0V379p4NSyEK50UnD0QP8oSWSW0uB4$].\nAfter registering\, you will receive
a confirmation email containing\ninformation about joining the meeting. \n
\nFor additional information email ds@ias.edu. \n\n \n
DTSTART:20211027T160000Z
DTEND:20211027T160000Z
LAST-MODIFIED:20211014T190516Z
LOCATION:Online
SUMMARY:Digital Scholarship Conversations
URL:https://www.ias.edu/digital-scholarship/events/digital-scholarship-conv
ersations-2
END:VEVENT
BEGIN:VEVENT
UID:66623264-6231-4733-b137-386232383564
DTSTAMP:20220123T174848Z
CREATED:20210923T160352Z
DESCRIPTION:Topic: The h-principle in fluid mechanics\n\nSpeakers: László S
zékelyhidi\n\nAffiliation: University of Leipzig\; Distinguished Visiting
Professor\, School of Mathematics\n\n
DTSTART:20211027T180000Z
DTEND:20211027T200000Z
LAST-MODIFIED:20211005T232646Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Lectures in Analysis and Geometry
URL:https://www.ias.edu/math/events/lectures-analysis-and-geometry-2
END:VEVENT
BEGIN:VEVENT
UID:33386631-3666-4239-a537-353961303532
DTSTAMP:20220123T174848Z
CREATED:20210930T193138Z
DESCRIPTION:Topic: Gaussian Elimination with Complete Pivoting: Searching f
or a Needle in a Haystack\n\nSpeakers: John C Urschel\n\nAffiliation: Memb
er\, School of Mathematics\n\nGaussian elimination is one of the oldest an
d most popular techniques\nfor factoring a matrix. The growth of entries i
n Gaussian elimination\nis an important practical problem. Modern results
as well as practice\nshow that entry growth is not a practical concern\, y
et this still\nremains a fascinating theoretical question. Cryer's conject
ure\nregarding pivot growth was disproved decades ago\, yet the gap betwee
n\nconstructions and upper bounds remains surprisingly large. Please\ncome
\, bring your mathematical ideas\, and help me solve this problem!\n
DTSTART:20211027T220000Z
DTEND:20211028T000000Z
LAST-MODIFIED:20211022T163428Z
LOCATION:Birch Garden\, Simons Hall
SUMMARY:Mathematical Conversations
URL:https://www.ias.edu/math/events/mathematical-conversations-216
END:VEVENT
BEGIN:VEVENT
UID:31393730-3337-4335-b364-386634306463
DTSTAMP:20220123T174848Z
CREATED:20210903T183936Z
DESCRIPTION:Topic: Magnetized Models for the Formation of the Moon\n\nSpeak
ers: Patrick Dean Mullen\n\nAffiliation: The Institute for Advanced Study
\n\nThe giant impact theory for the formation of the Moon suggests that a
\nplanetary impactor struck the proto-Earth in an oblique collision\nshort
ly after the formation of the solar system. This collision\nproduces liqui
d and vapor debris\, drawn from the proto-Earth and\nimpactor. Some debris
enters circumterrestrial orbits forming a\n'protolunar disk.' In this tal
k\, I will highlight a suite of numerical\nmodels using the Athena++ astro
physical magnetohydrodynamics framework\nthat investigates (1) the potenti
al dynamical role of magnetic fields\nin a Moon-forming giant impact scena
rio and (2) the early evolution of\nthe protolunar disk. Our models demons
trate that magnetic fields could\nspeed the evolution of the vapor compone
nt of the protolunar disk\,\nwhile making Moon formation less efficient.\n
\nREGISTRATION FORM\n[https://forms.ias.edu/form/sns-astrophysics-seminar]
\n
DTSTART:20211028T150000Z
DTEND:20211028T160000Z
LAST-MODIFIED:20211022T195534Z
LOCATION:Bloomberg Lecture Hall and Zoom
SUMMARY:Institute for Advanced Study Astrophysics Seminar
URL:https://www.ias.edu/sns/events/institute-advanced-study-astrophysics-se
minar-21
END:VEVENT
BEGIN:VEVENT
UID:37356165-3761-4166-b430-313539313565
DTSTAMP:20220123T174848Z
CREATED:20210923T163320Z
DESCRIPTION:Topic: Reading seminar on papers of Honda-Huang and Breem-Chris
topher\, exploring the notion of convexity in high dimensional contact geo
metry\n\n
DTSTART:20211028T180000Z
DTEND:20211028T200000Z
LAST-MODIFIED:20210928T210401Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Discussions in Analysis and Geometry
URL:https://www.ias.edu/math/events/discussions-analysis-and-geometry-2
END:VEVENT
BEGIN:VEVENT
UID:65633465-6161-4533-b739-663338663335
DTSTAMP:20220123T174848Z
CREATED:20210908T214137Z
DESCRIPTION:Topic: Reducible fibers and monodromy of polynomial maps\n\nSpe
akers: Danny Neftin\n\nFor a polynomial $f\in \mathbb Q[x]$\, Hilbert's ir
reducibility theorem\nasserts that the fiber $f^{-1}(a)$ is irreducible ov
er $\mathbb Q$ for\nall values $a\in \mathbb Q$ outside a 'thin' set of ex
ceptions $R_f$.\nThe problem of describing $R_f$ is closely related to det
ermining the\nmonodromy group of $f$\, and has consequences to arithmetic
dynamics\,\nthe Davenport-Lewis-Schinzel problem\, and to the polynomial v
ersion of\nthe question: 'can you hear the shape of the drum?'. We shall d
iscuss\nrecent progress on describing $R_f$ and its consequences to the ab
ove\ntopics.\n\nBased on joint work with Joachim König\n
DTSTART:20211028T203000Z
DTEND:20211028T213000Z
LAST-MODIFIED:20211028T135037Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Joint IAS/Princeton University Number Theory Seminar
URL:https://www.ias.edu/math/events/joint-iasprinceton-university-number-th
eory-seminar-459
END:VEVENT
BEGIN:VEVENT
UID:36356235-6130-4234-b665-656134386462
DTSTAMP:20220123T174848Z
CREATED:20210916T215416Z
DESCRIPTION:Topic: Detecting non-trivial elements in the spaces of Legendri
an knots via Algebraic K-theory\n\nSpeakers: Yakov Eliashberg\n\nAffiliati
on: Stanford University\; Member\, School of Mathematics\n\nThis talk is b
ased on a joint work with Thomas Kragh. Using the\ngenerating function the
ory we split inject homotopy groups of\npseudo-isotopy and/or h-cobordism
spaces into various spaces of\nLegendrian manifolds\, e.g. the space of Le
gendrian unknots in $\mathbb\nR^{2n+1}$ for a sufficiently large n. For in
stance\, there is a\nnon-trivial element in $\pi_2$ of the space of Legend
rian unknots in\n$\mathbb R^{2n+1}$ for $n \geq 12$.\n
DTSTART:20211029T131500Z
DTEND:20211029T144500Z
LAST-MODIFIED:20211029T124433Z
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-60
END:VEVENT
BEGIN:VEVENT
UID:66383866-3438-4732-b562-316465653930
DTSTAMP:20220123T174848Z
CREATED:20210922T143423Z
DESCRIPTION:Topic: Topic 1: Electron Heating in 2D PIC Simulations of Quasi
-Perpendicular Low-Beta Shocks Topic 2:The Early Light from Weak and Asphe
rical Stellar Explosions \n\nSpeakers: Aaron Tran and Itai Linial\n\nAffil
iation: Columbia University and The Hebrew University of Jerusalem\n\nAbst
ract 1: The electron heating physics in collisionless shocks\nimprints upo
n micro-scale dissipation and waves seen in situ by\nheliospheric spacecra
ft\, as well as X-ray emission from supernova\nremnants and galaxy cluster
s. How much do electrons heat\, and how do\nthey heat? We model low-beta h
eliospheric shocks with 1D and 2D\nfully-kinetic particle-in-cell simulati
ons\, taking fast Mach number\n1–4 and total plasma beta 0.25. In the para
meter space of\nquasi-perpendicular shocks (pre-shock magnetic field angle
s ~55–90\ndeg. from shock normal)\, we explore two regimes. For field angl
es near\n90 deg.\, electrons are advected downstream by the magnetic field
.\nHere\, the parallel electric field of ion-scale oblique whistler\nwaves
—only captured in 2D—accelerates electrons into streams along\nthe field\,
which then relax via two-stream-like instability. At more\noblique field
angles\, subsonic electrons stream easily in and out of\nthe shock. Here\,
electrons can gain energy from a cross-shock parallel\nelectric potential
jump and a secular potential rise along an oblique\nwhistler wave train t
raveling just ahead of the shock. Post-shock\nelectrons are colder than io
ns (Te/Ti ~ 0.1–1) in both regimes.\n\nAbstract 2: The first photons from
a supernova explosion emerge when\nthe supernova’s radiation-mediated shoc
k breaks out of the stellar\nsurface\, heralding an energetic transient ev
ent. These early\nshock-breakout photons carry invaluable information abou
t the\nprogenitor’s properties\, its immediate environment\, and the\nexpl
osion mechanism. I will discuss this phenomenon in the context of\nweak st
ellar explosions (with explosion energy much smaller than the\nstar's bind
ing energy)\, and explain how the radiative dissipation of a\nblast wave s
ets a minimal energy scale below which shock acceleration\ncannot unbind a
ny mass from the stellar envelope\, and comment on\nimplications regarding
pre-supernova eruptions and early supernovae\nlight curves. I will then p
resent recent results regarding the\nbolometric light curve expected from
the breakout of aspherical\nstellar explosions\, and discuss the prospects
of their discovery and\ncharacterization.\n
DTSTART:20211029T163000Z
DTEND:20211029T180000Z
LAST-MODIFIED:20211029T131001Z
LOCATION:Dome Room\, Peyton Hall or Zoom
SUMMARY:Princeton University Astroplasmas Seminar
URL:https://www.ias.edu/sns/events/princeton-university-astroplasmas-semina
r-16
END:VEVENT
BEGIN:VEVENT
UID:34303563-3337-4761-b935-386632316530
DTSTAMP:20220123T174848Z
CREATED:20210920T150731Z
DESCRIPTION:Topic: Searching for Islands of Reionization: A Potential Ioniz
ed Bubble Powered by a Spectroscopic Overdensity at z=8.7\n\nSpeakers: Reb
ecca Larson\n\nAffiliation: The University of Texas at Austin\n\nEach week
\, we hold a relatively informal seminar/discussion series\nwith an emphas
is on extra-galactic and large-scale structure\nastrophysics.\n\nDuring Ga
lread a leader/visitor presents a recent paper to the\ndiscussion group. T
he PDF of the paper is projected onto a large\nscreen\, and a guest explai
ns the paper\, section by section\, in greater\ndetail than may be explain
ed within the text of the article. To aid\nwith discussion\, only the arti
cle PDF is presented -- no\npowerpoint-style slides. Galread discussions a
re very friendly and\ninteractive.\n
DTSTART:20211101T150000Z
DTEND:20211101T160000Z
LAST-MODIFIED:20211029T181118Z
LOCATION:Virtual Meeting
SUMMARY:Princeton University Galread [Galactic/Extragalactic Reading Group]
URL:https://www.ias.edu/sns/events/princeton-university-galread-galacticext
ragalactic-reading-group-31
END:VEVENT
BEGIN:VEVENT
UID:62323830-6463-4635-a362-336235366338
DTSTAMP:20220123T174848Z
CREATED:20210720T150359Z
DESCRIPTION:Topic: Parallel Repetition for the GHZ Game: A Simpler Proof\n
\nSpeakers: Uma Girish\n\nAffiliation: Princeton University\n\nWe give a n
ew proof of the fact that the parallel repetition of the\n(3-player) GHZ g
ame reduces the value of the game to zero polynomially\nquickly. That is\
, we show that the value of the n-fold parallel\nrepetition of the GHZ gam
e is at most n^{-\Omega(1)}. This was first\nestablished by Holmgren and
Raz [HR20]. We present a new proof of\nthis theorem that we believe to be
simpler and more direct. Unlike\nmost previous works on parallel repetiti
on\, our proof makes no use of\ninformation theory and relies on the use o
f Fourier analysis. The\nGHZ game [GHZ89] has played a foundational role
in the understanding\nof quantum information theory\, due in part to the f
act that quantum\nstrategies can win the GHZ game with probability 1. It
is possible\nthat improved parallel repetition bounds may find application
s in this\nsetting. Recently\, Dinur\, Harsha\, Venkat\, and Yuen [DHVY17]
\nhighlighted the GHZ game as a simple three-player game\, which is in\nso
me sense maximally far from the class of multi-player games whose\nbehavio
r under parallel repetition is well understood. Dinur et al.\nconjectured
that parallel repetition decreases the value of the GHZ\ngame exponential
ly quickly\, and speculated that progress on proving\nthis would shed ligh
t on parallel repetition for general multi-player\n(multi-prover) games.
\n\nThis is based on a joint work with Justin Holmgren\, Kunal Mittal\, Ra
n\nRaz\, and Wei Zhan.\n
DTSTART:20211101T151500Z
DTEND:20211101T161500Z
LAST-MODIFIED:20211101T132958Z
LOCATION:Wolfensohn Hall and Remote Access
SUMMARY:Computer Science/Discrete Mathematics Seminar I
URL:https://www.ias.edu/math/events/computer-sciencediscrete-mathematics-se
minar-i-490
END:VEVENT
BEGIN:VEVENT
UID:34313137-3764-4261-a334-336131333166
DTSTAMP:20220123T174848Z
CREATED:20210922T131440Z
DESCRIPTION:Topic: General Discussion\n\n
DTSTART:20211101T160000Z
DTEND:20211101T170000Z
LAST-MODIFIED:20211029T183627Z
LOCATION:Virtual Meeting
SUMMARY:Princeton University Extrasolar Planet Discussion Group
URL:https://www.ias.edu/sns/events/princeton-university-extrasolar-planet-d
iscussion-group-37
END:VEVENT
BEGIN:VEVENT
UID:35636636-6237-4661-b830-376238356332
DTSTAMP:20220123T174848Z
CREATED:20210920T162800Z
DESCRIPTION:Topic: Topic 1: Resolving Debate Over the Tip of the Red Giant
Branch Method's Calibration and its Application to Measuring the Hubble Co
nstant Topic 2: The CAMELS-SAM simulations: new 'hump' for constraining co
smology with galaxy clustering and neural networks\n\nSpeakers: Taylor Hoy
t and Lucia Perez\n\nAffiliation: University of Chicago and Arizona State
University\n\nAbstract 1: Measurements of the Hubble constant (H0) as dete
rmined via\nthe Cepheid-supernovae distance ladder appear to provide stron
g\nevidence for physics beyond LCDM. However\, in the Carnegie Chicago\nHu
bble Program (CCHP)\, we used the Tip of the Red Giant Branch (TRGB)\nmeth
od to determine a value of H0 that is less in tension with LCDM\nthan the
Cepheid-SN value\, weakening the claim for new physics. This\ndisagreement
between the TRGB and Cepheids has sparked debate over the\nCCHP's calibra
tion of the TRGB zero point\, the value of which is\nperfectly degenerate
with H0. In this talk\, I will present my recent\nfindings that settle the
issue through careful experimental design and\nstate-of-the-art measureme
nts. I will demonstrate that this contention\nover TRGB calibration was so
urced by systematic biases (due to\, e.g.\,\nmetallicity\, age\, and dust)
in literature measurements. The final\nresult is a self-consistent TRGB c
alibration determined to its highest\naccuracy yet. The new result also co
nfirms the existence of the\nCepheid-TRGB distance discrepancy and that th
e likeliest explanation\nfor it is systematic error in measurements of the
most distant SN host\ngalaxies (20-30 Mpc). The TRGB has an exciting futu
re ahead. With data\nfrom my forthcoming Hubble Space Telescope program\,
the definitive\nHubble Telescope calibration of the TRGB will be determine
d. The door\nwill also be opened for the method to be used in the near-inf
rared\,\nwhich promises a tenfold increase in the number of TRGB-calibrate
d SNe\nIa—a prospect that would change the face of distance ladder H0\nexp
eriments.\n\nAbstract 2: The era of big astronomical data grows as survey
\ntelescopes like Roman\, LSST\, and SPHEREx near first light. Machine\nle
arning is a crucial tool to analyze and learn from these data\, but\nrequi
res large and well-understood data sets for training. The\nCosmology and A
strophysics with MachinE Learning Simulations (CAMELS)\nproject consists o
f simulations created specifically to train neural\nnetworks and other mac
hine learning tools\, with the ultimate goal of\nmeasuring the cosmology o
f the universe from observations. We present\na new ‘hump’ for the CAMELS
project\, created to specifically\nleverage the power of galaxy clustering
summary statistics to\nconstrain cosmology while also carrying features o
f galaxy formation\nphysics. The new CAMELS-SAM suite consists of 1000+ un
ique N-body\nsimulations of (100 h-1 Mpc)3 and N=(640)3 particles across a
very\nbroad range of ΩM and σ8\, and each with a unique iteration of the
\nSanta Cruz semi-analytic model (SAM) for galaxy formation with varied\np
arameters controlling stellar and AGN feedback. As a proof of concept\nof
the possibilities with these simulations\, we show how neural\nnetworks ar
e able to robustly measure cosmology and constrain\nparameters of baryonic
physics with the galaxy two-point correlation\nfunction\, void probabilit
y function\, and count-in-cells.\n
DTSTART:20211101T163000Z
DTEND:20211101T180000Z
LAST-MODIFIED:20211029T181646Z
LOCATION:Zoom\; PU\, Peyton Hall Dome Room
SUMMARY:Institute for Advanced Study/Princeton University Early Universe/Co
smology Lunch Discussion
URL:https://www.ias.edu/sns/events/institute-advanced-studyprinceton-univer
sity-early-universecosmology-lunch-discussion-28
END:VEVENT
BEGIN:VEVENT
UID:37386162-3164-4433-b465-346565333663
DTSTAMP:20220123T174848Z
CREATED:20210916T220043Z
DESCRIPTION:Topic: No seminar: Workshop\n\n
DTSTART:20211101T180000Z
DTEND:20211101T190000Z
LAST-MODIFIED:20210916T223204Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Members’ Colloquium
URL:https://www.ias.edu/math/events/members-colloquium-12
END:VEVENT
BEGIN:VEVENT
UID:62636564-6438-4239-a538-663961336561
DTSTAMP:20220123T174848Z
CREATED:20210720T151202Z
DESCRIPTION:Topic: Introduction to Continuous Combinatorics I: the semidefi
nite method of flag algebras\n\nSpeakers: Leonardo Coregliano\n\nAffiliati
on: Member\, School of Mathematics\n\nThe field of continuous combinatoric
s studies large (dense)\ncombinatorial structures by encoding them in a 'c
ontinuous' limit\nobject\, which is amenable to tools from analysis\, topo
logy\, measure\ntheory\, etc. The syntactic/algebraic approach of 'flag al
gebras'\n(Razborov '07) to the subject has gained considerable attention i
n the\nlast years due to its applications to extremal combinatorics. More
\nspecifically\, the semidefinite method of flag algebras provides a\nhier
archy of semidefinite programs whose optimal values provide\nasymptotic up
per bounds to any extremal combinatorics problem on\nmaximization of a pol
ynomial function of sub-object densities.\nFurthermore\, even though the o
nly theoretical guarantee is that the\nsemidefinite upper bounds converge
to the true extremal value\, in\nseveral extremal combinatorial problems c
onsidered in the literature a\nvery low level of the hierarchy provides no
t only tight bounds but\nalso structural information about extremality.\n
\nIn the lecture\, I will give an introduction to the theory of flag\nalge
bras and its semidefinite method.\n
DTSTART:20211102T143000Z
DTEND:20211102T163000Z
LAST-MODIFIED:20211102T132954Z
LOCATION:Wolfensohn Hall and Remote Access
SUMMARY:Computer Science/Discrete Mathematics Seminar II
URL:https://www.ias.edu/math/events/computer-sciencediscrete-mathematics-se
minar-ii-486
END:VEVENT
BEGIN:VEVENT
UID:35383439-3635-4435-b131-383065373131
DTSTAMP:20220123T174848Z
CREATED:20190726T150002Z
DESCRIPTION:
DTSTART:20211102T161500Z
DTEND:20211102T180000Z
LAST-MODIFIED:20190726T150002Z
LOCATION:Dilworth Room
SUMMARY:Institute for Advanced Study / Princeton University Bahcall Lunch
URL:https://www.ias.edu/events/institute-advanced-study-princeton-universit
y-bahcall-lunch-145
END:VEVENT
BEGIN:VEVENT
UID:62616138-3265-4633-b237-613562313430
DTSTAMP:20220123T174848Z
CREATED:20210928T143842Z
DESCRIPTION:Topic: No seminar: workshop\n\n
DTSTART:20211102T180000Z
DTEND:20211102T190000Z
LAST-MODIFIED:20211007T150818Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Seminar in Analysis and Geometry
URL:https://www.ias.edu/math/events/seminar-analysis-and-geometry-2
END:VEVENT
BEGIN:VEVENT
UID:37656131-3362-4034-b034-356262363966
DTSTAMP:20220123T174848Z
CREATED:20210917T203432Z
DESCRIPTION:Topic: Non-virtually abelian anisotropic linear groups are not
boundedly generated\n\nSpeakers: Jinbo Ren\n\nAffiliation: Member\, School
of Mathematics\n\nFrom Andrei's talk\, we have seen the significance of t
he notion of\nBounded Generation in group theory. In this talk\, we will s
how that if\na linear group $\Gamma \subset \mathrm{GL}_n(K)$ over a field
$K$ of\ncharacteristic zero is boundedly generated by semi-simple\n(diago
nalizable) elements then it is virtually solvable. As a\nconsequence\, one
obtains that infinite $S$-arithmetic subgroups of\nabsolutely almost simp
le anisotropic algebraic groups over number\nfields are never boundedly ge
nerated. Our proof relies on Laurent's\ntheorem from Diophantine geometry
and properties of generic elements.\nThis is joint work with Corvaja\, Rap
inchuk\, and Zannier.
DTSTART:20211103T150000Z
DTEND:20211103T161500Z
LAST-MODIFIED:20211029T191826Z
LOCATION:Remote Access
SUMMARY:Arithmetic Groups
URL:https://www.ias.edu/math/events/arithmetic-groups-3
END:VEVENT
BEGIN:VEVENT
UID:35393736-6363-4762-b763-393630346261
DTSTAMP:20220123T174848Z
CREATED:20211029T182346Z
DESCRIPTION:Topic: TBA\n\nSpeakers: Ashley Barnes\n\nAffiliation: The Argel
ander-Institut für Astronomie (AIfA)\, University in Bonn\n\n
DTSTART:20211103T150000Z
DTEND:20211103T160000Z
LAST-MODIFIED:20211029T182428Z
LOCATION:Virtual Meeting
SUMMARY:Princeton University Star Formation/ISM Rendezvous (SFIR)
URL:https://www.ias.edu/sns/events/princeton-university-star-formationism-r
endezvous-sfir-14
END:VEVENT
BEGIN:VEVENT
UID:33646134-6337-4261-b330-666633643466
DTSTAMP:20220123T174848Z
CREATED:20210923T160405Z
DESCRIPTION:Topic: No seminar: workshop\n\n
DTSTART:20211103T180000Z
DTEND:20211103T200000Z
LAST-MODIFIED:20210929T155938Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Lectures in Analysis and Geometry
URL:https://www.ias.edu/math/events/lectures-analysis-and-geometry-3
END:VEVENT
BEGIN:VEVENT
UID:31383064-6664-4862-b566-306131356462
DTSTAMP:20220123T174848Z
CREATED:20210930T193153Z
DESCRIPTION:Topic: No seminar: workshop\n\n
DTSTART:20211103T220000Z
DTEND:20211104T000000Z
LAST-MODIFIED:20211028T163123Z
LOCATION:Birch Garden\, Simons Hall
SUMMARY:Mathematical Conversations
URL:https://www.ias.edu/math/events/mathematical-conversations-217
END:VEVENT
BEGIN:VEVENT
UID:33386137-6138-4263-b231-626438373365
DTSTAMP:20220123T174848Z
CREATED:20210903T184038Z
DESCRIPTION:Topic: Using (Galactic) Supernova Remnants to Study Supernova P
rogenitors\n\nSpeakers: Chris Kochanek\n\nAffiliation: Ohio State Universi
ty\n\nParticularly with the advent of Gaia\, we can use Galactic SNRs as n
ew\nprobes of supernova progenitors. In particular\, we can constrain how
\nmany were binaries or triples at death and how\nmany of these systems su
rvived. We can also isolate the stellar\npopulations near a SNR to try to
infer the nature of the progenitor as\nis done in external galaxies. For
example\, the Vela pulsar probably\nformed from a quite low mass star tha
t was not in a binary at\ndeath. The ability to follow the motions of the
stars near Vela\nalso provides a cautionary tale about interpreting the s
imilar\nanalyses in external galaxies.\n\nREGISTRATION FORM\n[https://form
s.ias.edu/form/sns-astrophysics-seminar]\n
DTSTART:20211104T150000Z
DTEND:20211104T160000Z
LAST-MODIFIED:20211104T125232Z
LOCATION:Bloomberg Lecture Hall and Zoom
SUMMARY:Institute for Advanced Study Astrophysics Seminar
URL:https://www.ias.edu/sns/events/institute-advanced-study-astrophysics-se
minar-22
END:VEVENT
BEGIN:VEVENT
UID:64386666-3033-4262-b531-353433623231
DTSTAMP:20220123T174848Z
CREATED:20210922T141720Z
DESCRIPTION:Topic: Overview of the Dark Energy Spectroscopic Instrument\, m
apper of 1/3 of the visible universe for the next 5 years!\n\nSpeakers: Sa
tya Gontcho a Gontcho\n\nAffiliation: Lawrence Berkely National Lab\n\nThe
Dark Energy Spectroscopic Instrument (DESI) is a robotic\,\nfiber-fed spe
ctroscopic surveyor mounted on the Mayall 4-meter\ntelescope at Kitt Peak
National Observatory. It can obtain spectra of\nalmost 5000 objects over a
pproximately 7.5 square degrees of sky in a\nsingle visit. On May 14\, 202
1\, DESI embarked on a five-year survey of\nmore than 30 million extragala
ctic sources over 14\,000 square degrees.\nThis 3D map of galaxies and qua
sars will be used to produce precise\nnew constraints on the expansion his
tory of the Universe up to a\nredshift of 3.5 and will measure the growth
rate of structure in the\nredshift range 0.7-1.6 with unequaled precision
(<1.5% per redshift\nbin of 0.1). The start of the survey marks the end of
a successful\nsurvey validation period during which more than one million
\ncosmological redshifts were measured. This data set\, along with many\nc
ommissioning studies\, has demonstrated that the DESI project meets\nits s
cience requirements written many years ago. I will give an\noverview of th
e performance of DESI since we have been on sky and\ntouch on the exciting
science we are looking forward to doing over the\nnext few years.\n
DTSTART:20211104T173000Z
DTEND:20211104T183000Z
LAST-MODIFIED:20211029T185657Z
LOCATION:Virtual Meeting
SUMMARY:Rutgers University Astrophysics Seminar
URL:https://www.ias.edu/sns/events/rutgers-university-astrophysics-seminar-
10
END:VEVENT
BEGIN:VEVENT
UID:62316663-3761-4166-b334-306663306338
DTSTAMP:20220123T174848Z
CREATED:20210923T163333Z
DESCRIPTION:Topic: No seminar: workshop\n\n
DTSTART:20211104T180000Z
DTEND:20211104T200000Z
LAST-MODIFIED:20210929T160002Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Discussions in Analysis and Geometry
URL:https://www.ias.edu/math/events/discussions-analysis-and-geometry-3
END:VEVENT
BEGIN:VEVENT
UID:31373861-3831-4831-b233-396264316363
DTSTAMP:20220123T174848Z
CREATED:20210928T185603Z
DESCRIPTION:Topic: A (slightly deeper) look into the restricted 3-body prob
lem\n\nSpeakers: Agustin Moreno\n\nAffiliation: Member\, School of Mathema
tics\n\nIn this talk\, as a continuation of my talk in the Members’\nCollo
quium but with a specialized audience in mind\, I will discuss in\nmore de
tail some of the general geometric and dynamical structures\nunderlying th
e theoretical aspects of the restricted 3-body problem\,\nand outline new
research directions.\n
DTSTART:20211104T194500Z
DTEND:20211104T211500Z
LAST-MODIFIED:20211104T132430Z
LOCATION:Simonyi Hall 101
SUMMARY:Joint IAS/Princeton University Symplectic Geometry Seminar
URL:https://www.ias.edu/math/events/joint-iasprinceton-university-symplecti
c-geometry-seminar-168
END:VEVENT
BEGIN:VEVENT
UID:31343338-6430-4166-b033-303135343135
DTSTAMP:20220123T174848Z
CREATED:20210908T214149Z
DESCRIPTION:Topic: Monogenic fields with odd class number\n\nSpeakers: Arta
ne Jeremie Siad\n\nAffiliation: Princeton University\; Visitor\, School of
Mathematics\n\nIn this talk\, we prove an upper bound on the average numb
er of\n2-torsion elements in the class group of monogenised fields of any
\ndegree $n \geq 3$ and\, conditional on a widely expected tail estimate\,
\ncompute this average exactly. As an application\, we show the existence
\nof infinitely many number fields with odd class number in almost every\n
even degree and signature. Time permitting\, we will also discuss\nextensi
ons of these results to orders (joint with Shankar\, Swaminathan\nand Varm
a) and the relative setting.\n
DTSTART:20211104T203000Z
DTEND:20211104T213000Z
LAST-MODIFIED:20211104T132731Z
LOCATION:Fine Hall 214\, Princeton University and Remote Access
SUMMARY:Joint IAS/Princeton University Number Theory Seminar
URL:https://www.ias.edu/math/events/joint-iasprinceton-university-number-th
eory-seminar-460
END:VEVENT
BEGIN:VEVENT
UID:66646132-3531-4163-b465-653866383838
DTSTAMP:20220123T174848Z
CREATED:20210916T215428Z
DESCRIPTION:Topic: Three 20 minute research talks\n\nSpeakers: Rohil Prasad
\, Alex Pieloch\, Chi Hong Chow\n\nAffiliation: Princeton University\; Col
umbia University\; Chinese University of Hong Kong\n\nROHIL PRASAD (PRINCE
TON)\, The smooth closing lemma for area-preserving\nsurface diffeomorphis
ms\n\nIn this talk\, I will discuss recent joint work with D.\nCristofaro-
Gardiner and B. Zhang showing that a generic\narea-preserving diffeomorphi
sm of a closed surface has a dense set of\nperiodic points. This follows f
rom a result called a “smooth closing\nlemma” for area-preserving surface
diffeomorphisms\; this answers in\nthe affirmative Smale’s 10th problem in
the setting of\narea-preserving surface diffeomorphisms. The proof uses q
uantitative\nanalysis of spectral invariants from periodic Floer homology
via\nvarious estimates in Seiberg-Witten theory.\n\nALEX PIELOCH (COLUMBIA
)\, Sections and unirulings of families over the\nprojective line\n\nWe wi
ll discuss the existence of rational (multi)sections and\nunirulings for p
rojective families $f : X \to P^1$ with at most two\nsingular fibres. Spec
ifically\, we will discuss two ingredients for\nconstructing the above rat
ional curves. The first is local symplectic\ncohomology groups associated
to compact subsets of convex symplectic\ndomains. The second is a degenera
tion to the normal cone argument that\nallows one to produce closed curves
in $X$ from open curves (which are\nproduced using local symplectic cohom
ology) in the complement of $X$\nby a singular fibre.\n\nCHI HONG CHOW (CH
INESE UNIVERSITY OF HONG KONG)\, Hofer geometry of\ncoadjoint orbits and P
eterson's theorem\n\nWe will discuss a complete computation of Savelyev's
homomorphism\nassociated to any coadjoint orbit of a compact Lie group $G$
\, where\nthe domain is restricted to the based loop homology of $G$. This
gives\nat the same time some applications to the Hamiltonian groups of th
ese\nspaces and a geometric proof of an unpublished theorem of Peterson.\n
This theorem tells us explicitly how the multiplicative structure\nconstan
ts of the based loop homology of $G$ determine those of the\nquantum cohom
ology of its coadjoint orbits.\n
DTSTART:20211105T131500Z
DTEND:20211105T144500Z
LAST-MODIFIED:20211105T140016Z
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-61
END:VEVENT
BEGIN:VEVENT
UID:35346536-3865-4765-b962-653535383161
DTSTAMP:20220123T174848Z
CREATED:20211015T130113Z
DESCRIPTION:International Symposium\, _PRINCE BAYSUNGHUR\, BEFORE & AFTER:
TIMURID\nMANUSCRIPTS IN CONTEXT\n[https://albert.ias.edu/20.500.12111/7964
]__.__ _This inaugural\nsymposium of the Persian Manuscripts Association a
nd hosted by Near\nEastern Studies at the Institute for Advanced Study\, P
rinceton\,\ncelebrates the 600th anniversary of the first manuscript produ
ced at\nthe royal library-atelier of the Timurid Prince Baysunghur (1399-1
433)\nin Herat. Baysunghur’s patronage of manuscript production is\nsignif
icant for exhibiting a high artistic refinement in the arts of\nthe book\,
but the patron was also actively involved in the scholarly\naspect of the
works to be reproduced. He commanded editions and the\npreservation of te
xts in a variety of fields\, notably history\, ethics\nand literature. Th
is symposium brings together scholars and\ninternational experts in a numb
er of disciplines to explore the\nconnoisseurship and patronage undertaken
by the prince\, the aesthetic\nof his atelier’s output\, their antecedent
s in the Jalayirid period\,\nand the production of literary editions in hi
s library.\n\nThe full program for this event can be seen here\n[https://a
lbert.ias.edu/20.500.12111/7964]. REGISTER IN ADVANCE FOR\nTHIS WEBINAR H
ERE\n[https://theias.zoom.us/webinar/register/WN_5Yk6EwXmQdy_HRcwH_C3jQ].
After\nregistering\, you will receive an email containing information abou
t\njoining the webinar.\n\n \n
DTSTART:20211105T140000Z
DTEND:20211105T140000Z
LAST-MODIFIED:20211015T132339Z
LOCATION:Online
SUMMARY:Prince Baysunghur\, Before & After: Timurid Manuscripts in Context
URL:https://www.ias.edu/hs/events/prince-baysunghur-after-timurid-manuscrip
ts-context
END:VEVENT
BEGIN:VEVENT
UID:35313765-6330-4433-b639-646531366233
DTSTAMP:20220123T174848Z
CREATED:20211015T130113Z
DESCRIPTION:International Symposium\, _PRINCE BAYSUNGHUR\, BEFORE & AFTER:
TIMURID\nMANUSCRIPTS IN CONTEXT\n[https://albert.ias.edu/20.500.12111/7964
]__.__ _This inaugural\nsymposium of the Persian Manuscripts Association a
nd hosted by Near\nEastern Studies at the Institute for Advanced Study\, P
rinceton\,\ncelebrates the 600th anniversary of the first manuscript produ
ced at\nthe royal library-atelier of the Timurid Prince Baysunghur (1399-1
433)\nin Herat. Baysunghur’s patronage of manuscript production is\nsignif
icant for exhibiting a high artistic refinement in the arts of\nthe book\,
but the patron was also actively involved in the scholarly\naspect of the
works to be reproduced. He commanded editions and the\npreservation of te
xts in a variety of fields\, notably history\, ethics\nand literature. Th
is symposium brings together scholars and\ninternational experts in a numb
er of disciplines to explore the\nconnoisseurship and patronage undertaken
by the prince\, the aesthetic\nof his atelier’s output\, their antecedent
s in the Jalayirid period\,\nand the production of literary editions in hi
s library.\n\nThe full program for this event can be seen here\n[https://a
lbert.ias.edu/20.500.12111/7964]. REGISTER IN ADVANCE FOR\nTHIS WEBINAR H
ERE\n[https://theias.zoom.us/webinar/register/WN_5Yk6EwXmQdy_HRcwH_C3jQ].
After\nregistering\, you will receive an email containing information abou
t\njoining the webinar.\n\n \n
DTSTART:20211106T140000Z
DTEND:20211106T140000Z
LAST-MODIFIED:20211015T132339Z
LOCATION:Online
SUMMARY:Prince Baysunghur\, Before & After: Timurid Manuscripts in Context
URL:https://www.ias.edu/hs/events/prince-baysunghur-after-timurid-manuscrip
ts-context
END:VEVENT
BEGIN:VEVENT
UID:37643332-3037-4163-b764-333836613739
DTSTAMP:20220123T174848Z
CREATED:20210922T143457Z
DESCRIPTION:Topic: The Magneto-thermal Instability in Galaxy Clusters: Theo
ry and Simulations\n\nSpeakers: Lorenzo Perrone\n\nAffiliation: Cambridge
University\n\nIn the intracluster medium (ICM) of galaxies\, exchanges of
heat across\nmagnetic field lines are strongly suppressed. This anisotropi
c heat\nconduction\, in the presence of a large-scale temperature gradient
\,\ndestabilizes the outskirts of galaxy clusters via the magneto-thermal
\ninstability (MTI)\, and thus supplies a source of observed ICM\nturbulen
ce. Our aim is to take a fresh look at the problem and\nconstruct a genera
l theory that (a) explains the MTI saturation\nmechanism and (b) provides
scalings and estimates for the turbulent\nlevels. We simulate MTI turbulen
ce with a Boussinesq code\, SNOOPY\,\nwhich allows us to carry out an exte
nsive sampling of the parameter\nspace. In two dimensions the saturation m
echanism involves an inverse\ncascade carrying kinetic energy from the sho
rt MTI injection scales\nto larger scales\, where it is arrested by the st
able entropy\nstratification\; at a characteristic ‘buoyancy scale’\, the
energy\nis dumped into large-scale g-modes\, which subsequently dissipate.
In\nthree dimensions\, on the other hand\, most energy is dissipated at\n
the same scale as its injection\, and turbulent eddies are vertically\nelo
ngated at or below the thermal conduction length\, but relatively\nisotrop
ic on larger scales. Similar to 2D\, however\, the\nsaturated turbulent en
ergy levels and the integral scale follow clear\npower-laws that depend on
the thermal diffusivity\, temperature\ngradient\, and buoyancy frequency.
We also show that the MTI\namplifies magnetic fields\, through a fluctuat
ion dynamo\, to\nequipartition strengths provided that the integral scale
of MTI\nturbulence is larger than the viscous dissipation scale. Finally\,
we\nshow that our scaling laws are consistent with extant observations of
\nICM turbulence if the thermal conductivity is reduced by a factor of\n~1
0 from its Spitzer value\, and that on global cluster scales the\nstable s
tratification significantly reduces the vertical elongation\nof MTI motion
s.\n
DTSTART:20211105T163000Z
DTEND:20211105T180000Z
LAST-MODIFIED:20211029T190031Z
LOCATION:Dome Room\, Peyton Hall or Zoom
SUMMARY:Princeton University Astroplasmas Seminar
URL:https://www.ias.edu/sns/events/princeton-university-astroplasmas-semina
r-17
END:VEVENT
BEGIN:VEVENT
UID:36353939-6230-4537-b335-313264623839
DTSTAMP:20220123T174848Z
CREATED:20210920T150821Z
DESCRIPTION:Topic: How the stellar populations of passive central galaxies
depend on stellar and halo mass\n\nSpeakers: Grecco Oyarzun\n\nAffiliation
: University of California\, Santa Cruz\n\nEach week\, we hold a relativel
y informal seminar/discussion series\nwith an emphasis on extra-galactic a
nd large-scale structure\nastrophysics.\n\nDuring Galread a leader/visitor
presents a recent paper to the\ndiscussion group. The PDF of the paper is
projected onto a large\nscreen\, and a guest explains the paper\, section
by section\, in 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\n
interactive.\n
DTSTART:20211108T160000Z
DTEND:20211108T170000Z
LAST-MODIFIED:20210920T150907Z
LOCATION:Virtual Meeting
SUMMARY:Princeton University Galread [Galactic/Extragalactic Reading Group]
URL:https://www.ias.edu/sns/events/princeton-university-galread-galacticext
ragalactic-reading-group-32
END:VEVENT
BEGIN:VEVENT
UID:37613562-6563-4139-b962-643733333838
DTSTAMP:20220123T174848Z
CREATED:20210720T150413Z
DESCRIPTION:Topic: The Kakeya Set conjecture over Z mod N for general N\n\n
Speakers: Manik Dhar\n\nAffiliation: Princeton University\n\nA Kakeya Set
in (Z/N Z)^n is a set that contains a line in every\ndirection. It has be
en known for over a decade that such sets must\nbe large when N is prime (
or more generally over any finite field). \nThis goes back to Dvir's proof
of the finite field Kakeya conjecture\nas posed by Wolff. In this talk I
will cover results from three papers\nfrom the past ~year culminating in t
he resolution of the conjecture\nfor any N\, showing that\, for every eps>
0\, a Kakeya set S in (Z/N Z)^n\nmust have size at least C*N^{n-eps} where
the constant C depends on n\nand eps only. The first paper (by the speake
r and Dvir) resolved the\ncase of square-free N. The second paper (by Ars
ovski) settled the\nprime power case (which implies the p-adic Kakeya conj
ecture for\nHausdorff dimension). Finally\, a paper by the speaker\, buil
ding on\nideas from both prior works\, proves the conjecture for any N. T
he\nproofs involve several extensions/modifications to the polynomial\nmet
hod (as used by Dvir for the finite field case) which may be of\nindepende
nt interest.\n\n \n
DTSTART:20211108T161500Z
DTEND:20211108T171500Z
LAST-MODIFIED:20211109T135227Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Computer Science/Discrete Mathematics Seminar I
URL:https://www.ias.edu/math/events/computer-sciencediscrete-mathematics-se
minar-i-491
END:VEVENT
BEGIN:VEVENT
UID:61353564-6663-4133-b133-366164336266
DTSTAMP:20220123T174848Z
CREATED:20210922T131512Z
DESCRIPTION:Topic: General Discussion\n\n
DTSTART:20211108T170000Z
DTEND:20211108T180000Z
LAST-MODIFIED:20211105T154407Z
LOCATION:Virtual Meeting
SUMMARY:Princeton University Extrasolar Planet Discussion Group
URL:https://www.ias.edu/sns/events/princeton-university-extrasolar-planet-d
iscussion-group-38
END:VEVENT
BEGIN:VEVENT
UID:66643236-3030-4838-b864-356532663362
DTSTAMP:20220123T174848Z
CREATED:20210920T162840Z
DESCRIPTION:Topic: Topic 1: Axion dark matter in the sky Topic 2: Learning
Dark Energy properties from cosmological surveys\n\nSpeakers: Huangyu Xiao
and Marco Raveri\n\nAffiliation: University of Washington and University
of Pennsylvania\n\nAbstract 1: The axion\, motivated as a solution to the
strong CP\nproblem\, is also a viable dark matter candidate. If the initia
l axion\nfield is not homogenized by inflation\, it can naturally imprint
large\nisocurvature fluctuations at extremely small scales and form\nsubst
ructures with subplanetary masses. There have been proposals that\nappear
capable of detecting substructures with such masses\, which open\nthe wind
ow to detect axion indirectly. In this talk\, I will discuss\nthe evolutio
n of axion minihalos based on N-body simulations. The\npresent-day abundan
ce and density profiles of axion minihalos in the\nUniverse are obtained b
y extrapolating the simulation results\nanalytically\, suggesting that axi
on minihalos are detectable in future\nobservations.\n\nAbstract 2: I will
discuss optimal strategies to study Dark Energy\nproperties with data fro
m present and upcoming cosmological surveys.\nThen I will show a worked ex
ample obtained with present data including\nPlanck measurements of the CMB
and galaxy clustering data from the\nDark Energy Survey. I will then comm
ent on the relevance of these\nresults at explaining existing tensions wit
hin the standard\ncosmological model.\n\nREGISTRATION\n[https://forms.ias.
edu/form/sns-pu-ias-joint-cosmology-lunch]\n
DTSTART:20211108T173000Z
DTEND:20211108T190000Z
LAST-MODIFIED:20211105T154332Z
LOCATION:Zoom\; IAS\, West Seminar Room
SUMMARY:Institute for Advanced Study/Princeton University Early Universe/Co
smology Lunch Discussion
URL:https://www.ias.edu/sns/events/institute-advanced-studyprinceton-univer
sity-early-universecosmology-lunch-discussion-29
END:VEVENT
BEGIN:VEVENT
UID:39303236-3239-4639-b634-353535353537
DTSTAMP:20220123T174848Z
CREATED:20210916T220057Z
DESCRIPTION:Topic: Which manifolds are symplectic?\n\nSpeakers: Yakov Elias
hberg\n\nAffiliation: Stanford University\; Member\, School of Mathematics
\n\nThe question in the title was one of the founding questions in\nsymple
ctic topology 40 years ago\, and despite a lot of progress since\nthat tim
e\, it remains widely open. In the talk I will discuss the\ninitial questi
ons\, the progress\, and the remaining challenges.\n
DTSTART:20211108T190000Z
DTEND:20211108T200000Z
LAST-MODIFIED:20211109T135304Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Members’ Colloquium
URL:https://www.ias.edu/math/events/members-colloquium-13
END:VEVENT
BEGIN:VEVENT
UID:63343061-3961-4638-b564-373236623563
DTSTAMP:20220123T174848Z
CREATED:20210928T185617Z
DESCRIPTION:Topic: Lagrangian Cobordisms and Enriched Knot Diagrams\n\nSpea
kers: Ipsita Datta\n\nAffiliation: Member\, School of Mathematics\n\nWe pr
esent some obstructions to the existence of Lagrangian cobordisms\nin $\ma
thbb R^4$. The obstructions arise from studying moduli spaces\nof holomorp
hic disks with corners with boundaries on immersed objects\ncalled Lagrang
ian tangles. The obstructions boil down to area\nrelations and sign condit
ions on disks bound by knot diagrams of the\nboundaries of the Lagrangian.
We present examples of pairs of knots\nthat cannot be Lagrangian cobordan
t and knots that cannot bound\nLagrangian disks.
DTSTART:20211108T210000Z
DTEND:20211108T223000Z
LAST-MODIFIED:20211105T184030Z
LOCATION:Fine Hall 314\, Princeton University
SUMMARY:Joint IAS/Princeton University Symplectic Geometry Seminar
URL:https://www.ias.edu/math/events/joint-iasprinceton-university-symplecti
c-geometry-seminar-169
END:VEVENT
BEGIN:VEVENT
UID:30633236-6562-4134-b239-623532653261
DTSTAMP:20220123T174848Z
CREATED:20210720T151216Z
DESCRIPTION:Topic: Introduction to Continuous Combinatorics II: semantic li
mits\n\nSpeakers: Leonardo Coregliano\n\nAffiliation: Member\, School of M
athematics\n\nThe field of continuous combinatorics studies large (dense)
\ncombinatorial structures by encoding them in a 'continuous' limit\nobjec
t\, which is amenable to tools from analysis\, topology\, measure\ntheory\
, etc. While the syntactic/algebraic approach of 'flag algebras'\n(Razboro
v '07) provides a very simple limit object for convergent\nsequences\, the
minimalist nature of the limit objects from flag\nalgebras loses almost a
ll information on the semantics and geometry of\nthe original objects. On
the other side of the coin\, the\ngeometric/semantic approach to the subje
ct\, typically associated with\nthe name 'graphons' (Lovász--Szegedy '04)
for limits of graphs and\nwith the name 'theons' (C.--Razborov '20) for li
mits of arbitrary\ncombinatorial objects\, retains geometric and semantic
information by\nproducing a more complicated limit that still 'looks like'
the\noriginal objects.\n\nIn this lecture\, I will give an introduction t
o the theories of\ngraphons and theons and show some examples of theorems
in the theory\nof quasirandomness that greatly benefit from either a\nsema
ntic/geometric approach or from a hybrid approach.\n
DTSTART:20211109T153000Z
DTEND:20211109T173000Z
LAST-MODIFIED:20211109T165534Z
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-487
END:VEVENT
BEGIN:VEVENT
UID:36376235-6533-4634-a261-353439613037
DTSTAMP:20220123T174848Z
CREATED:20190726T150002Z
DESCRIPTION:
DTSTART:20211109T171500Z
DTEND:20211109T190000Z
LAST-MODIFIED:20190726T150002Z
LOCATION:Dilworth Room
SUMMARY:Institute for Advanced Study / Princeton University Bahcall Lunch
URL:https://www.ias.edu/events/institute-advanced-study-princeton-universit
y-bahcall-lunch-146
END:VEVENT
BEGIN:VEVENT
UID:37313834-3931-4932-a537-616263336533
DTSTAMP:20220123T174848Z
CREATED:20210928T143857Z
DESCRIPTION:Topic: 3D Navier-Stokes equations: the dynamics of a blow-up\n
\nSpeakers: Alexey P Cheskidov\n\nAffiliation: University of Illinois\, Ch
icago\; Member\, School of Mathematics\n\nI will present an elementary int
roduction to the regularity/uniqueness\nissues for the Navier-Stokes equat
ions. Thanks to the convex\nintegration technique\, the h-principle is sta
rting to take shape for\nthe uniqueness problem. It might be possible that
classical scaling\ninvariant uniqueness results (Prodi-Serrin type condit
ions) are the\nonly constraints for constructing non-unique solutions of t
he NSE. As\nfor the regularity problem\, the situation is more delicate si
nce there\nare also dynamical constraints that can potentially prevent sol
utions\nfrom blowing up.\n
DTSTART:20211109T190000Z
DTEND:20211109T200000Z
LAST-MODIFIED:20211115T175000Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Seminar in Analysis and Geometry
URL:https://www.ias.edu/math/events/seminar-analysis-and-geometry-3
END:VEVENT
BEGIN:VEVENT
UID:62313962-3432-4163-a434-353566373030
DTSTAMP:20220123T174848Z
CREATED:20210920T170707Z
DESCRIPTION:Topic: Beyond the Visible Universe\n\nSpeakers: Jesus Rivera\n
\nAffiliation: Swarthmore College\n\nSince the earliest days of astronomy\
, scientists have explored the\nUniverse through visible wavelengths\, and
we've gained enormous\ninsights through this window into space. But much
of the Universe is\ndim or invisible at these wavelengths\, so to form a f
uller picture of\nwhat is out there\, we need to study more than visible l
ight alone. In\nthis talk\, Prof. Rivera will give an overview of the fiel
d of radio\nastronomy\, including the types of information we gather from
observing\nthe sky at radio wavelengths\, and how radio telescopes differ
from\ntheir more common optical counterparts. From there\, he will discuss
\nhis specific area of research and how he uses a combination of\ntelescop
es to study gravitationally lensed\, dusty star-forming\ngalaxies as a mea
ns of probing galaxy formation and evolution.\n
DTSTART:20211110T003000Z
DTEND:20211110T023000Z
LAST-MODIFIED:20211105T154600Z
LOCATION:Virtual Meeting
SUMMARY:Amateur Astronomers Association of Princeton (AAAP) Monthly Meeting
URL:https://www.ias.edu/sns/events/amateur-astronomers-association-princeto
n-aaap-monthly-meeting-10
END:VEVENT
BEGIN:VEVENT
UID:65663339-3365-4962-b866-636339353366
DTSTAMP:20220123T174848Z
CREATED:20211103T155011Z
DESCRIPTION:Topic: Dynamics on character varieties\n\nSpeakers: William Gol
dman\n\nAffiliation: University of Maryland\; Member\, School of Mathemati
cs\n\nIn these two talks\, I will describe how the classification of local
ly\nhomogeneous geometric structures (closely related to flat connections)
\nleads to interesting dynamical systems.\n\nMany interesting dynamical sy
stems arise from the classification of\nlocally homogeneous geometric stru
ctures and flat connections on\nmanifolds. Their classification mimics tha
t of Riemann surfaces by the\nRiemann moduli space\, which identifies as t
he quotient of Teichmueller\nspace of marked Riemann surfaces by the actio
n of the mapping class\ngroup. However\, unlike Riemann surfaces\, these a
ctions are generally\nchaotic. A striking elementary example is Baues's th
eorem that the\ndeformation space of complete affine structures on the 2-t
orus is the\nplane with the usual linear action of $GL(2\,\mathbb Z)$ (the
mapping\nclass group of the torus).\n\nWe discuss specific examples of th
ese dynamics for some simple\nsurfaces\, where the relative character vari
eties appear as cubic\nsurfaces in affine 3-space\, as well as the symplec
tic leaves of\ninvariant Poisson structures\, Complicated dynamics seems t
o accompany\ncomplicated topology\, which we can them as (possibly singula
r)\nhyperbolic structures on surfaces.\n
DTSTART:20211110T150000Z
DTEND:20211110T155000Z
LAST-MODIFIED:20211103T172537Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Character Varieties\, Dynamics and Arithmetic
URL:https://www.ias.edu/math/events/character-varieties-dynamics-and-arithm
etic
END:VEVENT
BEGIN:VEVENT
UID:33373865-3065-4462-b938-643933663738
DTSTAMP:20220123T174848Z
CREATED:20210917T203446Z
DESCRIPTION:Topic: The congruence subgroup property for SL(2\,Z)\n\nSpeaker
s: William Yun Chen\n\nAffiliation: Member\, School of Mathematics\n\nSome
how\, despite the title\, $SL(2\,Z)$ is the poster child for\narithmetic g
roups not satisfying the congruence subgroup property\,\nwhich is to say t
hat it has finite index subgroups which can not be\ndefined by congruence
conditions on their coefficients. The existence\nof such noncongruence sub
groups is reflective of the dual nature of\n$SL(2\,Z)$ as both the mapping
class group of a torus\, as well as that\nof a once punctured torus. This
coincidence\, however innocuous at\nfirst sight\, leads to quickly diverg
ing theories\, the difference being\nakin to the distinction between surfa
ces of genus 1 vs genus $\geq 2$\nin geometry. In the first part of the ta
lk\, I will explain how in the\nlatter perspective\, $SL(2\,Z)$ actually s
atisfies a 'congruence\nsubgroup property' (in a necessarily different sen
se!)\, and how this\nproperty leads to a natural procedure that takes as i
nput a\ntopological covering $X$ of a punctured torus $T$\, and produces a
s\noutput a finite index subgroup of $SL(2\,Z)$. Moreover\, almost every\n
finite index subgroup can be constructed in this way. Geometrically\,\non
input $X/T$\, the output is the fundamental group of the moduli\nstack of
covers of punctured elliptic curves which are topologically\nisomorphic to
$X/T$. I will also explain this procedure in terms of\ngroup theory\, and
in terms of Teichmuller dynamics. I will describe\nsome results and natur
al questions that arise\, using the congruence\ncase as an example. While
there is a simple algorithm for carrying out\nthe above procedure\, it is
difficult to predict properties of the\noutput given knowledge of the inpu
t. In the second part of the talk\, I\nwill describe a new result in this
direction. If the input is a cover\n$X/T$ which is Galois with all ramific
ation indices above the puncture\nequal to e\, then under certain conditio
ns the output will have index\ndivisible by e. Using the character variety
for\n$SL(2)$-representations of $\pi_1(T)$\, I will explain how this impl
ies\na conjecture of Bourgain\, Gamburd\, and Sarnak on the arithmetic of
the\nMarkoff surface $x^2 + y^2 + z^2 - xyz = 0$. This also leads to an\ne
xplicit genus formula for a certain family of noncongruence modular\ncurve
s\, and a formula for the Siegel-Veech constants of a certain\nnatural fam
ily of square-tiled congruence modular curves.\n
DTSTART:20211110T160000Z
DTEND:20211110T171500Z
LAST-MODIFIED:20211110T193035Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Arithmetic Groups
URL:https://www.ias.edu/math/events/arithmetic-groups-4
END:VEVENT
BEGIN:VEVENT
UID:30343864-3439-4533-b861-623662643237
DTSTAMP:20220123T174848Z
CREATED:20211105T154713Z
DESCRIPTION:Topic: The role of charged dust grains in shaping the evolution
of molecular cloud envelopes\n\nSpeakers: Leire Beitia-Antero\n\nAffiliat
ion: Complutense University of Madrid\n\nThe outer layers of molecular clo
uds are submitted to the ambient\nradiation field and the presence of char
ged species favours their\ncoupling to the ambient magnetic field. In part
icular\, charged dust\ngrains may affect the turbulent state and the chemi
cal evolution of\nthe cloud\, since their dynamics in this regime is gover
ned partly by\nthe magnetic fields and dust grains may form filaments deco
upled from\nthe gas\, or favour the propagation of MHD waves into the clou
d. In the\nlast few years\, great efforts have been put into coupling the
\ndynamical evolution of charged dust grains with the evolution of the\nga
s in MHD simulations. In this talk\, I will present my implementation\nof
charged dust grains in Athena to model the evolution of charged\ndust grai
ns in molecular cloud envelopes\, the results I have obtained\nso far and
some potential research that could be carried out with this\nmodule.\n
DTSTART:20211110T160000Z
DTEND:20211110T170000Z
LAST-MODIFIED:20211105T154815Z
LOCATION:Virtual Meeting
SUMMARY:Princeton University Star Formation/ISM Rendezvous (SFIR)
URL:https://www.ias.edu/sns/events/princeton-university-star-formationism-r
endezvous-sfir-15
END:VEVENT
BEGIN:VEVENT
UID:63333739-6439-4538-b033-633663373438
DTSTAMP:20220123T174848Z
CREATED:20210923T160420Z
DESCRIPTION:Topic: h-principle in symplectic topology\n\nSpeakers: Emmy Mur
phy\n\nAffiliation: Princeton University\; Visitor\, School of Mathematics
\n\n
DTSTART:20211110T190000Z
DTEND:20211110T210000Z
LAST-MODIFIED:20211110T171600Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Lectures in Analysis and Geometry
URL:https://www.ias.edu/math/events/lectures-analysis-and-geometry-4
END:VEVENT
BEGIN:VEVENT
UID:65616439-6435-4330-b736-386237323762
DTSTAMP:20220123T174848Z
CREATED:20211103T165137Z
DESCRIPTION:Topic: Random forests and hyperbolic symmetry\n\nSpeakers: Rola
nd Bauerschmidt\n\nAffiliation: University of Cambridge\n\nGiven a finite
graph\, the arboreal gas is the measure on forests\n(subgraphs without cyc
les) in which each edge is weighted by a\nparameter $\beta>0$. Equivalentl
y this model is bond percolation\nconditioned to be a forest\, the indepen
dent sets of the graphic\nmatroid\, or the $q\to 0$ limit of the random cl
uster representation of\nthe $q$-state Potts model. Our results rely on th
e fact that this\nmodel is also the graphical representation of the non-li
near sigma\nmodel with target space the fermionic hyperbolic plane $H^{0|2
}$.\n\nThe main question we are interested in is whether the arboreal gas
\npercolates\, i.e.\, whether for a given $\beta$ the forest has a\nconnec
ted component that includes a positive fraction of the total\nedges of the
graph. We show that in two dimensions a Mermin-Wagner\ntheorem associated
with a continuous symmetry of the non-linear sigma\nmodel implies that th
e arboreal gas does not percolate for any $\beta\n> 0$. On the other hand\
, in three and higher dimensions\, we show that\npercolation occurs for la
rge $\beta$ by proving that the symmetry of\nthe non-linear sigma model is
spontaneous broken. We also show that\nthe broken symmetry is accompanied
by massless fluctuations (Goldstone\nmode). This result is achieved by a
renormalisation group analysis\ncombined with Ward identities from the int
ernal symmetry of the sigma\nmodel.\n\nThis talk is based on joint works w
ith N. Crawford\, T. Helmuth\, and A.\nSwan\, and with N. Crawford and T.
Helmuth.\n
DTSTART:20211110T213000Z
DTEND:20211110T223000Z
LAST-MODIFIED:20211110T193006Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Special Seminar
URL:https://www.ias.edu/math/events/special-seminar-67
END:VEVENT
BEGIN:VEVENT
UID:35656139-3065-4465-b830-333534313938
DTSTAMP:20220123T174848Z
CREATED:20210930T193207Z
DESCRIPTION:Topic: Stochastic Characteristics: ellipticity and hypoelliptic
ity from finite to infinite dimensions\n\nSpeakers: Jonathan Mattingly\n\n
Affiliation: Duke University\; Member\, School of Mathematics\n\nI will gi
ve an elementary introduction to the connections between\ndiffusions and s
tochastic characteristics in $\mathbb R^n$. I will\nthen explain how one m
ight think about what it means to be elliptic or\nhypoellipticity in an in
finite dimensional setting.\n
DTSTART:20211110T230000Z
DTEND:20211111T010000Z
LAST-MODIFIED:20211108T160826Z
LOCATION:Birch Garden\, Simons Hall
SUMMARY:Mathematical Conversations
URL:https://www.ias.edu/math/events/mathematical-conversations-218
END:VEVENT
BEGIN:VEVENT
UID:61336239-6337-4231-b562-643566363332
DTSTAMP:20220123T174848Z
CREATED:20201009T161518Z
DESCRIPTION:
DTSTART:20211111T150000Z
DTEND:20211111T170000Z
LAST-MODIFIED:20211104T173411Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Floer Learning Seminar
URL:https://www.ias.edu/math/events/floer-learning-seminar
END:VEVENT
BEGIN:VEVENT
UID:34346133-3433-4136-b036-323035616262
DTSTAMP:20220123T174848Z
CREATED:20210903T184202Z
DESCRIPTION:Topic: The Growing Danger of Nuclear Weapons (and how physicist
s can help reduce it)\n\nSpeakers: Fred Lamb\n\nAffiliation: University of
Illinois\n\nAlthough today’s nuclear arsenals are not much in the news\,
they\npose enormous risks for all humanity. Moreover\, many treaties that
\nhave reduced the threat of nuclear weapons are now being abandoned\,\nan
d enormous resources are scheduled to be spent on new nuclear\nweapons. We
face a renewed nuclear arms race with potentially\ncatastrophic consequen
ces. Historically\, physicists have played a\ncritical role in helping the
public and decision makers understand the\nthreat posed by nuclear weapon
s and what can be done to reduce the\nthreat. I will explain the growing n
uclear crisis and describe a new\nproject sponsored by the American Physic
al Society to support and\nmobilize physicists to reduce the nuclear threa
t.\n\nREGISTRATION FORM\n[https://forms.ias.edu/form/sns-astrophysics-semi
nar]\n
DTSTART:20211111T160000Z
DTEND:20211111T170000Z
LAST-MODIFIED:20211105T145037Z
LOCATION:Bloomberg Lecture Hall and Zoom
SUMMARY:Institute for Advanced Study Astrophysics Seminar
URL:https://www.ias.edu/sns/events/institute-advanced-study-astrophysics-se
minar-23
END:VEVENT
BEGIN:VEVENT
UID:64643335-6164-4365-b366-353162656530
DTSTAMP:20220123T174848Z
CREATED:20210923T163347Z
DESCRIPTION:Topic: Reading seminar on the papers of Tao on universality of
the Euler equations\n\nSpeakers: Cédric De Groote\n\nAffiliation: Member\,
School of Mathematics\n\nWe'll go through Tao's 'On the universality of t
he incompressible\nEuler equation on compact manifolds'.
DTSTART:20211111T190000Z
DTEND:20211111T210000Z
LAST-MODIFIED:20211028T175543Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Discussions in Analysis and Geometry
URL:https://www.ias.edu/math/events/discussions-analysis-and-geometry-4
END:VEVENT
BEGIN:VEVENT
UID:61376337-3464-4233-b431-653262366163
DTSTAMP:20220123T174848Z
CREATED:20210908T214204Z
DESCRIPTION:Topic: The unbounded denominators conjecture\n\nSpeakers: Yunqi
ng Tang\n\nAffiliation: Princeton University\n\nThe unbounded denominators
conjecture\, first raised by Atkin and\nSwinnerton-Dyer\, asserts that a
modular form for a finite index\nsubgroup of $SL_2(\mathbb Z)$ whose Fouri
er coefficients have bounded\ndenominators must be a modular form for some
congruence subgroup. In\nthis talk\, we will give a sketch of the proof o
f this conjecture based\non a new arithmetic algebraization theorem. This
is joint work with\nFrank Calegari and Vesselin Dimitrov.\n
DTSTART:20211111T213000Z
DTEND:20211111T223000Z
LAST-MODIFIED:20211111T131546Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Joint IAS/Princeton University Number Theory Seminar
URL:https://www.ias.edu/math/events/joint-iasprinceton-university-number-th
eory-seminar-461
END:VEVENT
BEGIN:VEVENT
UID:38396632-6363-4832-a462-396263353165
DTSTAMP:20220123T174848Z
CREATED:20201216T220256Z
DESCRIPTION:Topic: Ignaz Goldziher and his Correspondents: Islamic and Jewi
sh Studies around the Turn of the Twentieth Century\n\nCONVENORS:\nHans-Jü
rgen Becker (Georg-August-Universität Göttingen)\nKinga Dévényi (Corvinus
University of Budapest\, and The Oriental\nCollection of the Library of th
e Hungarian Academy of Sciences)\nSebastian Günther (Georg-August-Universi
tät Göttingen)\nSabine Schmidtke (Institute for Advanced Study\, Princeton
NJ)\n\nCONFERENCE LOCATION:\nUpon careful consideration of all aspects in
volved\, the conference\nwill be held virtually.\n\nThis international con
ference takes place within the framework of the\nAlexander-von-Humboldt Re
search Prize.\n
DTSTART:20211112T140000Z
DTEND:20211112T140000Z
LAST-MODIFIED:20210719T141736Z
LOCATION:
SUMMARY:Near Eastern Studies Conference
URL:https://www.ias.edu/hs/events/near-eastern-studies-conference
END:VEVENT
BEGIN:VEVENT
UID:62303461-3035-4436-b531-616166353934
DTSTAMP:20220123T174848Z
CREATED:20201216T220256Z
DESCRIPTION:Topic: Ignaz Goldziher and his Correspondents: Islamic and Jewi
sh Studies around the Turn of the Twentieth Century\n\nCONVENORS:\nHans-Jü
rgen Becker (Georg-August-Universität Göttingen)\nKinga Dévényi (Corvinus
University of Budapest\, and The Oriental\nCollection of the Library of th
e Hungarian Academy of Sciences)\nSebastian Günther (Georg-August-Universi
tät Göttingen)\nSabine Schmidtke (Institute for Advanced Study\, Princeton
NJ)\n\nCONFERENCE LOCATION:\nUpon careful consideration of all aspects in
volved\, the conference\nwill be held virtually.\n\nThis international con
ference takes place within the framework of the\nAlexander-von-Humboldt Re
search Prize.\n
DTSTART:20211113T140000Z
DTEND:20211113T140000Z
LAST-MODIFIED:20210719T141736Z
LOCATION:
SUMMARY:Near Eastern Studies Conference
URL:https://www.ias.edu/hs/events/near-eastern-studies-conference
END:VEVENT
BEGIN:VEVENT
UID:31323837-3537-4538-a332-373638623361
DTSTAMP:20220123T174848Z
CREATED:20210916T215440Z
DESCRIPTION:Topic: No seminar\n\n
DTSTART:20211112T141500Z
DTEND:20211112T154500Z
LAST-MODIFIED:20211104T203719Z
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-62
END:VEVENT
BEGIN:VEVENT
UID:39636166-3566-4139-b739-383162323133
DTSTAMP:20220123T174848Z
CREATED:20210920T150912Z
DESCRIPTION:Topic: Physical Drivers of Emission Line Diversity of SDSS Seyf
ert 2s and LINERs After Removal of Contributions by Star Formation\n\nSpea
kers: Christopher Agostino\n\nAffiliation: Indiana University\, Bloomingto
n\n\nEach week\, we hold a relatively informal seminar/discussion series\n
with an emphasis on extra-galactic and large-scale structure\nastrophysics
.\n\nDuring Galread a leader/visitor presents a recent paper to the\ndiscu
ssion group. The PDF of the paper is projected onto a large\nscreen\, and
a guest explains the paper\, section by section\, in greater\ndetail than
may be explained within the text of the article. To aid\nwith discussion\,
only the article PDF is presented -- no\npowerpoint-style slides. Galread
discussions are very friendly and\ninteractive.\n
DTSTART:20211115T160000Z
DTEND:20211115T170000Z
LAST-MODIFIED:20210920T151020Z
LOCATION:Virtual Meeting
SUMMARY:Princeton University Galread [Galactic/Extragalactic Reading Group]
URL:https://www.ias.edu/sns/events/princeton-university-galread-galacticext
ragalactic-reading-group-33
END:VEVENT
BEGIN:VEVENT
UID:34366338-3732-4063-a238-343336666136
DTSTAMP:20220123T174848Z
CREATED:20210720T150427Z
DESCRIPTION:Topic: No Seminar\n\n
DTSTART:20211115T161500Z
DTEND:20211115T171500Z
LAST-MODIFIED:20210913T131322Z
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-492
END:VEVENT
BEGIN:VEVENT
UID:32643662-3837-4362-b331-353533373536
DTSTAMP:20220123T174848Z
CREATED:20210922T131541Z
DESCRIPTION:Topic: General Discussion\n\n
DTSTART:20211115T170000Z
DTEND:20211115T180000Z
LAST-MODIFIED:20211115T085321Z
LOCATION:Virtual Meeting
SUMMARY:Princeton University Extrasolar Planet Discussion Group
URL:https://www.ias.edu/sns/events/princeton-university-extrasolar-planet-d
iscussion-group-39
END:VEVENT
BEGIN:VEVENT
UID:37623330-6564-4031-b662-643631323632
DTSTAMP:20220123T174848Z
CREATED:20210920T163134Z
DESCRIPTION:Topic: Topic 1: Potential new insights about reionization from
the cosmic microwave background and the Lyman alpha forest Topic 2: Massiv
e-neutrino Perturbations without the Boltzmann HierarchyTopic 1\n\nSpeaker
s: Xiaohan Wu and Lingyuan Ji\n\nAffiliation: Harvard University\, CfA and
Johns Hopkins University\n\nAbstract 1: Reionization of the intergalactic
medium remains one of\nthe most mysterious questions in the research of c
osmology. While the\nfirst generation of stars (Pop-III) likely ionize the
universe at\n1-10% level at z>15\, the second generation of stars are bel
ieved to\ndrive the bulk of reionization at z<12 and complete the reioniza
tion\nprocess in a patchy pattern. In this talk I will discuss potential n
ew\ninsights into Pop-III reionization at z>15 using the large-scale\npola
rization of the CMB and imprints of patchy reionization at z<12 on\nthe po
st-reionization Lyman-alpha forest. I will show that although\nfuture CMB
surveys will be able to measure the large-scale CMB EE\npower spectrum at
higher signal-to-noise and constrain the optical\ndepth at z>15 much bette
r than Planck\, the detailed shape of the EE\npower spectrum is unlikely t
o add in more constraining power on our\nunderstanding of Pop-III star for
mation. On the other hand\,\ntemperature fluctuations owing to patchy reio
nization likely induce\nexcess power on the large scales of the Lyman-alph
a forest flux power\nspectrum\, indicating a potential future observationa
l constraint on\nthe patchiness of reionization. We also found negligible
impact of\ntemperature fluctuations on the small-scale shape of the forest
flux\npower spectrum\, implying that patchy reionization is unlikely to b
ias\ncurrent IGM temperature measurements and WDM/FDM constraints using th
e\nforest flux power spectrum.\n\nAbstract 2: At the very foundation of ma
ny cosmology studies is a\nnumerical algorithm that evolves the perturbati
ons of matter and\nradiation from the Big Bang to today. This algorithm sp
ends ~400\ndifferential equations on the Boltzmann hierarchies of photons
and 3\ngenerations of massive neutrinos\, in contrast to ~5 equations for
the\nrest of the system (i.e. CDM+baryons). I will demonstrate how the\nli
ne-of-sight integral can be used to replace the neutrino Boltzmann\nhierar
chies\, and present a new numerical scheme that can potentially\naccelerat
e the current state-of-the-art Boltzmann codes.\n
DTSTART:20211115T173000Z
DTEND:20211115T190000Z
LAST-MODIFIED:20211115T090318Z
LOCATION:Zoom\; PU\, Peyton Hall Dome Room
SUMMARY:Institute for Advanced Study/Princeton University Early Universe/Co
smology Lunch Discussion
URL:https://www.ias.edu/sns/events/institute-advanced-studyprinceton-univer
sity-early-universecosmology-lunch-discussion-30
END:VEVENT
BEGIN:VEVENT
UID:33323631-6563-4339-b163-383032366364
DTSTAMP:20220123T174848Z
CREATED:20210916T220113Z
DESCRIPTION:Topic: Growth of cohomology in towers of manifolds: a topologic
al application of the Langlands program\n\nSpeakers: Mathilde Gerbelli-Gau
thier\n\nAffiliation: Member\, School of Mathematics\n\nHow does the dimen
sion of the first cohomology grow in a tower of\ncovering spaces? After a
tour of examples of behaviors for\nlow-dimensional spaces\, I will focus o
n arithmetic manifolds.\nSpecifically\, for towers of complex hyperbolic m
anifolds\, I will\ndescribe how to bound the rates of growth using results
from Langlands\nfunctoriality.\n
DTSTART:20211115T190000Z
DTEND:20211115T200000Z
LAST-MODIFIED:20211108T161524Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Members’ Colloquium
URL:https://www.ias.edu/math/events/members-colloquium-14
END:VEVENT
BEGIN:VEVENT
UID:38613638-3638-4535-b139-303137306538
DTSTAMP:20220123T174848Z
CREATED:20210928T185632Z
DESCRIPTION:Topic: ECH of prequantization bundles\n\nSpeakers: Jo Nelson\n
\nAffiliation: Rice University\n\nThe 2011 PhD thesis of Farris outlined a
scheme to show that the ECH\nof a prequantization bundle over a Riemann s
urface is isomorphic as a\n$Z/2Z$-graded group to the exterior algebra of
the homology of its\nbase. In addition to providing an overview of the pro
of\, I will\nexplain how Morgan Weiler and I extended this result by compu
ting the\n$Z$-grading on the chain complex\, permitting our computation of
the\nunstable and stable portions of ECH.\n
DTSTART:20211115T210000Z
DTEND:20211115T223000Z
LAST-MODIFIED:20211105T185838Z
LOCATION:Simonyi Hall 101
SUMMARY:Joint IAS/Princeton University Symplectic Geometry Seminar
URL:https://www.ias.edu/math/events/joint-iasprinceton-university-symplecti
c-geometry-seminar-170
END:VEVENT
BEGIN:VEVENT
UID:64303563-3239-4332-b130-333131613965
DTSTAMP:20220123T174848Z
CREATED:20210720T151230Z
DESCRIPTION:Topic: No Seminar\n\n
DTSTART:20211116T153000Z
DTEND:20211116T173000Z
LAST-MODIFIED:20210913T131355Z
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-488
END:VEVENT
BEGIN:VEVENT
UID:65373030-3066-4131-b062-363831623562
DTSTAMP:20220123T174848Z
CREATED:20190726T150002Z
DESCRIPTION:
DTSTART:20211116T171500Z
DTEND:20211116T190000Z
LAST-MODIFIED:20190726T150002Z
LOCATION:Dilworth Room
SUMMARY:Institute for Advanced Study / Princeton University Bahcall Lunch
URL:https://www.ias.edu/events/institute-advanced-study-princeton-universit
y-bahcall-lunch-147
END:VEVENT
BEGIN:VEVENT
UID:62393236-3937-4963-b538-646335316266
DTSTAMP:20220123T174848Z
CREATED:20210928T143909Z
DESCRIPTION:Topic: Building linear homotopies in metric topology with scala
ble spaces\n\nSpeakers: Aleksandr Berdnikov\n\nAffiliation: Member\, Schoo
l of Mathematics\n\n
DTSTART:20211116T190000Z
DTEND:20211116T200000Z
LAST-MODIFIED:20211116T132246Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Seminar in Analysis and Geometry
URL:https://www.ias.edu/math/events/seminar-analysis-and-geometry-4
END:VEVENT
BEGIN:VEVENT
UID:37383765-3063-4761-b966-613737613237
DTSTAMP:20220123T174848Z
CREATED:20211103T164306Z
DESCRIPTION:Topic: Dynamics on character varieties\n\nSpeakers: William Gol
dman\n\nAffiliation: University of Maryland\; Member\, School of Mathemati
cs\n\nIn these two talks\, I will describe how the classification of local
ly\nhomogeneous geometric structures (closely related to flat connections)
\nleads to interesting dynamical systems.\n\nMany interesting dynamical sy
stems arise from the classification of\nlocally homogeneous geometric stru
ctures and flat connections on\nmanifolds. Their classification mimics tha
t of Riemann surfaces by the\nRiemann moduli space\, which identifies as t
he quotient of Teichmueller\nspace of marked Riemann surfaces by the actio
n of the mapping class\ngroup. However\, unlike Riemann surfaces\, these a
ctions are generally\nchaotic. A striking elementary example is Baues's th
eorem that the\ndeformation space of complete affine structures on the 2-t
orus is the\nplane with the usual linear action of $GL(2\,\mathbb Z)$ (the
mapping\nclass group of the torus).\n\nWe discuss specific examples of th
ese dynamics for some simple\nsurfaces\, where the relative character vari
eties appear as cubic\nsurfaces in affine 3-space\, as well as the symplec
tic leaves of\ninvariant Poisson structures\, Complicated dynamics seems t
o accompany\ncomplicated topology\, which we can them as (possibly singula
r)\nhyperbolic structures on surfaces.\n
DTSTART:20211117T150000Z
DTEND:20211117T155000Z
LAST-MODIFIED:20211117T132014Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Character Varieties\, Dynamics and Arithmetic
URL:https://www.ias.edu/math/events/character-varieties-dynamics-and-arithm
etic-0
END:VEVENT
BEGIN:VEVENT
UID:32333139-3833-4230-b437-326433623739
DTSTAMP:20220123T174848Z
CREATED:20210917T203458Z
DESCRIPTION:Topic: Algebraicity/holonomicity theorems\n\nSpeakers: Vesselin
Dimitrov\, Frank Calegari\n\nAffiliation: University of Toronto\; Univers
ity of Chicago\n\nLet $f = \sum a_n x^n \in \mathbb Q[[x]]$ be a power ser
ies which is\nalso a meromorphic function in some neighborhood of the orig
in. The\nsubject of the talk will be how certain conditions on $f(x)$ as a
\nmeromorphic function actually guarantee that $f(x)$ is an algebraic\nfun
ction of $x$. We shall begin by describing a common theme which\nruns thro
ugh many such arguments. We then shall discuss a number of\nexamples of su
ch theorems (including a new such result).\n
DTSTART:20211117T160000Z
DTEND:20211117T171500Z
LAST-MODIFIED:20211117T175517Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Arithmetic Groups
URL:https://www.ias.edu/math/events/arithmetic-groups-5
END:VEVENT
BEGIN:VEVENT
UID:31613637-3765-4639-b766-303665613634
DTSTAMP:20220123T174848Z
CREATED:20210923T160433Z
DESCRIPTION:Topic: Stationary solutions of the Euler equations and Reeb vec
tor fields\n\nSpeakers: Kai Cieliebak\n\nAffiliation: University of Augsbu
rg\; Member\, School of Mathematics\n\n
DTSTART:20211117T190000Z
DTEND:20211117T210000Z
LAST-MODIFIED:20211117T134650Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Lectures in Analysis and Geometry
URL:https://www.ias.edu/math/events/lectures-analysis-and-geometry-5
END:VEVENT
BEGIN:VEVENT
UID:65636236-3436-4461-a464-366531393232
DTSTAMP:20220123T174848Z
CREATED:20210930T193220Z
DESCRIPTION:Topic: Noether's Theorem in the Calculus of Variations and Hype
rbolic Manifolds\n\nSpeakers: Karen Uhlenbeck\n\nAffiliation: University o
f Texas at Austin\; Distinguished Visiting Professor\, School of Mathemati
cs\n\nI will remind the audience of Noether’s theorem in the calculus of\n
variations and give a little of the history. An elementary application\nto
integrals of Lagrangians defined on functions with domain a\nhyperbolic s
urface will be given\, ending with a suggestion that it may\nbe worth look
ing into similar results in dimension greater than 2.\n
DTSTART:20211117T230000Z
DTEND:20211118T010000Z
LAST-MODIFIED:20211111T205418Z
LOCATION:Birch Garden\, Simons Hall
SUMMARY:Mathematical Conversations
URL:https://www.ias.edu/math/events/mathematical-conversations-219
END:VEVENT
BEGIN:VEVENT
UID:30373963-3439-4661-a434-623736313262
DTSTAMP:20220123T174848Z
CREATED:20211104T173838Z
DESCRIPTION:
DTSTART:20211118T150000Z
DTEND:20211118T170000Z
LAST-MODIFIED:20211104T173845Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Floer Learning Seminar
URL:https://www.ias.edu/math/events/floer-learning-seminar-0
END:VEVENT
BEGIN:VEVENT
UID:63383337-3764-4663-b039-663664663734
DTSTAMP:20220123T174848Z
CREATED:20210903T184253Z
DESCRIPTION:Topic: Dynamical Evolution of Binaries in Star Clusters and Gal
axies\n\nSpeakers: Chris Hamilton\n\nAffiliation: The Institute for Advanc
ed Study\n\nThe orbital evolution of binary systems perturbed by external
tidal\nforces represents one of the oldest problems in celestial mechanics
.\n Interest in this class of problems has resurged recently due to the\n
discovery of various exotic astrophysical phenomena\, particularly\nthe LI
GO/Virgo mergers of compact object binaries. On\nthe theoretical side\, t
he most notorious advance of recent decades\nhas been the Lidov-Kozai theo
ry\, in which a binary is excited to high\neccentricity by a bound tertiar
y perturber. However\, there exist\nmany more avenues for perturbing bina
ries. For\ninstance\, tidal forces can arise from the smooth\, global\ngr
avitational field of the galaxy or star cluster in which the binary\nresid
es\; from stochastic kicks by passing stars\; or from dark matter\nsubstru
cture\, giant molecular clouds and various other bits of\ngalactic detritu
s. In this talk I will show how one can formulate a\ngeneral theory of tid
ally perturbed binaries. I will then explain\nthe quantitative consequenc
es of the theory in the case where the\ndominant tidal force on the binary
comes from the global potential of\nits host cluster or galaxy. Finally\,
I will apply the theory to the\nproblem of merging compact object binarie
s in stellar clusters.\n\nREGISTRATION FORM\n[https://forms.ias.edu/form/s
ns-astrophysics-seminar]\n
DTSTART:20211118T160000Z
DTEND:20211118T170000Z
LAST-MODIFIED:20211115T091629Z
LOCATION:Bloomberg Lecture Hall and Zoom
SUMMARY:Institute for Advanced Study Astrophysics Seminar
URL:https://www.ias.edu/sns/events/institute-advanced-study-astrophysics-se
minar-24
END:VEVENT
BEGIN:VEVENT
UID:63336632-3836-4461-b762-373531663531
DTSTAMP:20220123T174848Z
CREATED:20210922T141820Z
DESCRIPTION:Topic: Deciphering the Effect of AGB Stars on Galaxies\n\nSpeak
ers: Martha Boyer\n\nAffiliation: STScI\n\nThermally-pulsing Asymptotic Gi
ant Branch (TP-AGB) stars dominate the\nIR flux in star-forming galaxies (
up to 70%). This dominance has a\nsignificant impact on model-dependent de
rived galaxy properties like\nthe star-formation rate and stellar mass\, y
et the stellar models that\nyield these results are not able to reproduce
TP-AGB observed\nproperties. IR data are essential for calibrating TP-AGB
models. HST's\nmedium-band IR filters are uniquely suited for TP-AGB obser
vations and\nhave enabled the first TP-AGB calibration observations in gal
axies\nbeyond the Milky Way system. This capability significantly broadens
\nthe metallicity and age baselines for model calibrations\, making them\n
far more broadly applicable than what has been provided by the\ntypically-
used Magellanic Clouds. I will present results using these\nHST filters to
identify TP-AGB stars in M31 and other nearby galaxies\nand discuss JWST
Cycle 1 programs that will quantify the TP-AGB dust\nproduction and mass l
oss\, providing stringent constraints on TP-AGB\nlifetimes at low metallic
ity.\n
DTSTART:20211118T183000Z
DTEND:20211118T193000Z
LAST-MODIFIED:20211115T092252Z
LOCATION:Virtual Meeting
SUMMARY:Rutgers University Astrophysics Seminar
URL:https://www.ias.edu/sns/events/rutgers-university-astrophysics-seminar-
11
END:VEVENT
BEGIN:VEVENT
UID:61626537-3662-4038-b139-316333646230
DTSTAMP:20220123T174848Z
CREATED:20210923T163401Z
DESCRIPTION:Topic: Reading seminar on the papers of Tao on universality of
the Euler equations\n\nSpeakers: Francisco Mengual\n\nAffiliation: Member\
, School of Mathematics\n\nWe'll go through Tao's 'On the universality of
the incompressible\nEuler equation on compact manifolds\, II. Non-rigidity
of Euler flows'.
DTSTART:20211118T190000Z
DTEND:20211118T210000Z
LAST-MODIFIED:20211028T175518Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Discussions in Analysis and Geometry
URL:https://www.ias.edu/math/events/discussions-analysis-and-geometry-5
END:VEVENT
BEGIN:VEVENT
UID:30643763-6638-4666-a439-363062636538
DTSTAMP:20220123T174848Z
CREATED:20210908T214218Z
DESCRIPTION:Topic: Conditional approaches to sums of cubes\n\nSpeakers: Vic
tor Wang\n\nAffiliation: Princeton University\n\nIn 1986\, Hooley applied
(what practically amounts to) the general\nLanglands reciprocity (modulari
ty) conjecture and GRH in a fresh new\nway\, over certain families of cubi
c 3-folds. This eventually led to\nconditional near-optimal bounds for the
number of integral solutions\nto $x_1^3+ \cdots +x_6^3 = 0$ in expanding
boxes.\n\nBuilding on Hooley's work\, I will sketch new applications of\nl
arge-sieve hypotheses\, the Square-free Sieve Conjecture\, and\nprediction
s of Random Matrix Theory type\, over the same geometric\nfamilies - e.g.
conditional statistical results on sums of three\ninteger cubes (a project
suggested by Amit Ghosh and Peter Sarnak).\nThese form the bulk of my the
sis work (advised by Sarnak)\, and involve\nphenomena both random and stru
ctured\, average- and worst-case\, and\nmultiplicative and additive.\n
DTSTART:20211118T213000Z
DTEND:20211118T223000Z
LAST-MODIFIED:20211118T144134Z
LOCATION:Fine Hall 214\, Princeton University and Remote Access
SUMMARY:Joint IAS/Princeton University Number Theory Seminar
URL:https://www.ias.edu/math/events/joint-iasprinceton-university-number-th
eory-seminar-462
END:VEVENT
BEGIN:VEVENT
UID:64353931-3637-4136-b464-363535366439
DTSTAMP:20220123T174848Z
CREATED:20210916T215452Z
DESCRIPTION:Topic: Exact orbifold fillings of contact manifolds\n\nSpeakers
: Fabio Gironella\n\nAffiliation: Humboldt University of Berlin\n\nThe top
ic of the talk will be Floer theories on exact symplectic\norbifolds with
smooth contact boundary. More precisely\, I will first\ndescribe the const
ruction\, which only uses classical transversality\ntechniques\, of a symp
lectic cohomology group on such symplectic\norbifolds. Then\, I will give
some geometrical applications\, such as\nrestrictions on possible singular
ities of exact symplectic fillings of\nsome particular contact manifolds\,
and the existence\, in any odd\ndimension at least 5\, of a pair of conta
ct manifolds with no exact\nsymplectic (smooth) cobordisms in either direc
tion. This is joint work\nwith Zhengyi Zhou.\n
DTSTART:20211119T141500Z
DTEND:20211119T154500Z
LAST-MODIFIED:20211119T141142Z
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-63
END:VEVENT
BEGIN:VEVENT
UID:39343239-6366-4337-a364-643262303136
DTSTAMP:20220123T174848Z
CREATED:20210922T143540Z
DESCRIPTION:Topic: Simulations of the collisionless magnetorotational insta
bility with Particle-in-Cell: Revisited\n\nSpeakers: Fabio Bacchini\n\nAff
iliation: University of Colorado\n\nThe magnetorotational instability (MRI
) is a fundamental process\noccurring in astrophysical accretion disks. Th
e MRI promotes accretion\nby driving turbulence on macroscopic scales. In
the process\, magnetic\nreconnection and other collective plasma phenomena
can accelerate\nparticles to high (possibly nonthermal) energies. The res
ulting plasma\nemission may be measurable with observational campaigns.\n
\nIn radiatively inefficient accretion flows\, plasmas are expected to be
\ncollisionless. This invokes the use of Particle-in-Cell (PiC) methods\nt
o study the dynamics of the MRI in these environments. However\, the\nscal
e separation between macroscopic and kinetic scales is extremely\nlarge fo
r realistic systems. For this reason\, only a small number of\nworks have
been produced where the MRI is studied with PiC\nsimulations\, often with
a very limited exploration of the available\nparameter space and with limi
ted dimensionality.\n\nWe are revisiting PiC simulations of the MRI by exp
loring the\nparameter space (temporal and spatial scale separation) in det
ail\, and\nconsidering different field geometries in the 2D and 3D cases.
We find\nthat even in the 2D pair-plasma case\, very large simulations are
\nneeded to minimize the effect of the limited scale separation\; this\nca
rries over to the 3D case. Moreover\, the field geometry and the\ndimensio
nality of the simulation heavily influence the results. Our\nfindings are
important in the context of ultimately perform\nion-electron 3D simulation
s of the MRI with PiC\, in order to gain\ninsight into the microphysics of
observationally targeted RIAFs.\n
DTSTART:20211119T170000Z
DTEND:20211119T183000Z
LAST-MODIFIED:20211115T144106Z
LOCATION:Dome Room\, Peyton Hall or Zoom
SUMMARY:Princeton University Astroplasmas Seminar
URL:https://www.ias.edu/sns/events/princeton-university-astroplasmas-semina
r-18
END:VEVENT
BEGIN:VEVENT
UID:31313337-3139-4163-b434-346164333364
DTSTAMP:20220123T174848Z
CREATED:20210920T151028Z
DESCRIPTION:Topic: Integral Field Spectroscopy of Fast Outflows in Dwarf Ga
laxies with AGNs\n\nSpeakers: Weizhe Liu\n\nAffiliation: University of Mar
yland\n\nEach week\, we hold a relatively informal seminar/discussion seri
es\nwith an emphasis on extra-galactic and large-scale structure\nastrophy
sics.\n\nDuring Galread a leader/visitor presents a recent paper to the\nd
iscussion group. The PDF of the paper is projected onto a large\nscreen\,
and a guest explains the paper\, section by section\, in greater\ndetail t
han may be explained within the text of the article. To aid\nwith discussi
on\, only the article PDF is presented -- no\npowerpoint-style slides. Gal
read discussions are very friendly and\ninteractive.\n
DTSTART:20211122T160000Z
DTEND:20211122T170000Z
LAST-MODIFIED:20211119T134428Z
LOCATION:Virtual Meeting
SUMMARY:Princeton University Galread [Galactic/Extragalactic Reading Group]
URL:https://www.ias.edu/sns/events/princeton-university-galread-galacticext
ragalactic-reading-group-34
END:VEVENT
BEGIN:VEVENT
UID:65633632-6161-4766-a136-623563653261
DTSTAMP:20220123T174848Z
CREATED:20210720T150440Z
DESCRIPTION:Topic: On Approximability of CSPs on Satisfiable Instances\n\nS
peakers: Subhash Khot\n\nAffiliation: New York University\n\nConstraint Sa
tisfaction Problems (CSPs) are among the most\nwell-studied problems in Co
mputer Science\, 3SAT being a prominent\nexample.\n\nLet $\Sigma$ be an al
phabet and $P:\Sigma^k \rightarrow \{0\,1\}$ be a\nfixed predicate. The as
signments in $P^{-1}(1)$ are deemed as\nsatisfying assignments to the pred
icate. The $k$-ary\nCSP corresponding to the predicate\, denoted $CSP(P)$
\, consists of $n$\nvariables $x_1\,...\,x_n$ taking values over $\Sigma$
and $m$\nconstraints $C_1\,...\,C_m$ where each constraint $C_j$ is the pr
edicate\n$P$ applied to an ordered subset of $k$ variables. Sometimes\nva
riables are allowed to be in negated form (in case of Boolean\nalphabet) o
r a mix of predicates derived from the same template\npredicate $P$ is all
owed. \n\nThe satisfiability problem for $CSP(P)$ asks whether an instance
of\n$CSP(P)$ has a (fully) satisfying assignment\, i.e. an assignment tha
t\nsatisfies all constraints. This problem is known to be in class P\nor
is NP-complete by the recently proved Dichotomy Theorem of Bulatov\nand Zh
uk. An example of a CSP that is in class P is 3LIN\, where\nconstraints ar
e linear equations over an Abelian group\, each equation\nhaving three var
iables.\n\nA most natural question is to ask for the precise threshold $\a
lpha(P)\n< 1$ for every NP-complete $CSP(P)$ such that (i) there is an\nef
ficient algorithm that finds an assignment satisfying $\alpha(P)$\nfractio
n of the constraints on a satisfiable instance and (ii) for\nevery $\epsil
on > 0$\, finding $\alpha(P)+\epsilon$ satisfying\nassignment is hard. It
is reasonable to hypothesize that such a\nthreshold exists.\n\nThis natura
l question\, surprisingly\, is wide open\, though such\nthresholds are kno
wn for some specific predicates (e.g.\, 7/8 for 3SAT\nby Hastad). The talk
will present recent work initiating a systematic\nstudy of this question\
, a relevant analytic hypothesis and some\nprogress on it\, and connection
s to the Dichotomy Theorem and a work of\nRaghavendra that answers the que
stion on *almost-satisfiable*\ninstances.\n\nJoint work with Amey Bhangale
and Dor Minzer.\n
DTSTART:20211122T161500Z
DTEND:20211122T171500Z
LAST-MODIFIED:20211122T133240Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Computer Science/Discrete Mathematics Seminar I
URL:https://www.ias.edu/math/events/computer-sciencediscrete-mathematics-se
minar-i-493
END:VEVENT
BEGIN:VEVENT
UID:30393839-3639-4161-a135-383964303863
DTSTAMP:20220123T174848Z
CREATED:20210922T131630Z
DESCRIPTION:Topic: Stellar Companions to TESS Objects of Interest: A Test o
f Planet-Companion Alignment\n\nSpeakers: Aida Behmard\n\nAffiliation: Cal
ifornia Institute of Technology\n\nWe present a catalog of stellar compani
ons to host stars of TESS\nObjects of Interest identified from a marginali
zed likelihood ratio\ntest that incorporates astrometric data from the Gai
a Early Data\nRelease 3 catalog (EDR3). The likelihood ratio is computed u
sing a\nprobabilistic model that incorporates parallax and proper motion\n
covariances and marginalizes the distances and 3D velocities of stars\nin
order to identify comoving stellar pairs. We find 189 comoving\ncompanions
to 186 non-false positive TOI hosts\, consisting of 183\nsystems with two
stars and 3 systems with three stars. Amongst the 186\nTOI hosts\, 48 har
bor confirmed planets that span a wide range of\nsystem architectures. We
conduct an investigation of the mutual\ninclinations between the stellar c
ompanion and planetary orbits. While\nthe statistical significance of the
current sample is weak\, we find\nthat 73+14-20% of systems with Kepler-li
ke architectures (Rp ≤ 4\nREarth and a < 1 AU) prefer a non-isotropic orie
ntation between the\nplanetary and companion orbits with a typical mutual
inclination α of\n35 +/- 24 degrees. In contrast\, 65+20-35% of systems wi
th close-in\ngiants (P < 10 days and Rp > 4 REarth) favor a perpendicular
geometry\n(α = 89 +/- 21 degrees) between the planet and companion. Moreov
er\,\nthe close-in giants with large stellar obliquities (planet-host\nmis
alignment) are also those that favor significant planet-companion\nmisalig
nment. \n
DTSTART:20211122T170000Z
DTEND:20211122T180000Z
LAST-MODIFIED:20211119T134142Z
LOCATION:Virtual Meeting
SUMMARY:Princeton University Extrasolar Planet Discussion Group
URL:https://www.ias.edu/sns/events/princeton-university-extrasolar-planet-d
iscussion-group-40
END:VEVENT
BEGIN:VEVENT
UID:62663761-6461-4263-a431-653165653762
DTSTAMP:20220123T174848Z
CREATED:20210920T163302Z
DESCRIPTION:Topic: Topic 1: Could quasar lensing time-delays hint to a core
component in halos\, instead of H0 tension? Topic 2: AGN Variability and
HEAN in the age of VRO\n\nSpeakers: Kfir Blum and Cyril Creque-Sarbinowski
\n\nAffiliation: CERN and Johns Hopkins University\n\nAbstract 1: The time
delay measured between the images of\ngravitationally lensed quasars prob
es a combination of angular\ndiameter distances and the mass profile of th
e lens. Observational\ncampaigns to measure such systems have reported a d
etermination of the\nHubble parameter H0 in tension with determinations ba
sed on the cosmic\nmicrowave background (CMB) and large scale structure (L
SS). I show\nthat a core component in the lens model acts as an approximat
e mass\nsheet transformation. This modelling degeneracy was initially not
\nconsidered by the cosmographic analyses. Including it causes the error\n
budget on H0 to grow\, reflecting the uncertainties from stellar\nkinemati
cs\; this effectively eliminates the lensing part of the H0\ntension. Time
permits\, I will also discuss degeneracies between H0 and\nweak cosmologi
cal convergence and shear. Based on 2001.07182\,\n2105.10873\, and work in
progress with the same group of authors.\n\nAbstract 2: Over the next ten
years\, the Vera C. Rubin Observatory\n(VRO) will observe ∼10 million act
ive galactic nuclei (AGN) with a\nregular and high cadence. During this ti
me\, the intensities of most of\nthese AGN will vary stochastically. Moreo
ver\, these fluctuations may\nalso be connected to the high-energy astroph
ysical neutrino (HEAN)\nflux observed by IceCube. In this talk\, I explore
the prospects to\nquantify these fluctuations with VRO-measurements of AG
N light curves\nand also evaluate the capacity of VRO\, in tandem with var
ious current\nand upcoming neutrino telescopes\, to establish AGN as HEAN
emitters. I\nfind that AGN variability measurements will be so precise as
to allow\nthe AGN to be separated into up to ∼ 10 different\ncorrelation-t
imescale bins. I also show that if the correlation time\nvaries as some po
wer of the luminosity\, the normalization and\npower-law index of that rel
ation will be determined to O(10^{−4}%).\nFinally\, I find that it may be
possible to detect AGN contributions at\nthe ~ 3\sigma level to the HEAN f
lux even if these AGN contribute only\n~10% of the HEAN flux.\n\nREGISTRAT
ION\n[https://forms.ias.edu/form/sns-pu-ias-joint-cosmology-lunch]\n
DTSTART:20211122T173000Z
DTEND:20211122T190000Z
LAST-MODIFIED:20211119T133910Z
LOCATION:Zoom\; IAS\, West Seminar Room
SUMMARY:Institute for Advanced Study/Princeton University Early Universe/Co
smology Lunch Discussion
URL:https://www.ias.edu/sns/events/institute-advanced-studyprinceton-univer
sity-early-universecosmology-lunch-discussion-31
END:VEVENT
BEGIN:VEVENT
UID:37383532-6661-4631-a430-353233303038
DTSTAMP:20220123T174848Z
CREATED:20210916T220126Z
DESCRIPTION:Topic: Mathematical foundations for human-level intelligence (P
art 1): Cooperative communication as belief transport\n\nSpeakers: Patrick
Shafto\n\nAffiliation: Rutgers University\; Member\, School of Mathematic
s\n\nHuman learning outstrips modern machine learning and AI in at least\n
three abilities: rapid robust learning\, in effectively open worlds\, in\n
near-real time with very little energy. Mathematical formalization of\nsig
nature human abilities has the possibility to advance machine\nlearning th
eory and practice. In this talk\, I will demonstrate the\npossibility of r
igorous mathematical formalizations of rapid and\nrobust learning via coop
erative communication\, and discuss\ngeneralizations and directions.\n
DTSTART:20211122T190000Z
DTEND:20211122T200000Z
LAST-MODIFIED:20211122T133855Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Members’ Colloquium
URL:https://www.ias.edu/math/events/members-colloquium-15
END:VEVENT
BEGIN:VEVENT
UID:61643738-3035-4334-b437-633537336663
DTSTAMP:20220123T174848Z
CREATED:20210928T185645Z
DESCRIPTION:Topic: Legendrian Torus and Cable Links\n\nSpeakers: Lisa Trayn
or\n\nAffiliation: Bryn Mawr College\n\nLegendrian torus knots were classi
fied by Etnyre and Honda. I will\nexplain the classification of Legendrian
torus links. In particular\, I\nwill describe restrictions on the Legendr
ian torus knots that can be\nrealized as the components of a Legendrian to
rus link\, and I will give\nexamples of Legendrian torus links that cannot
be destabilized even\nthough they do not have maximal Thurston-Bennequin
invariant.\nFurthermore\, I will explain that there are some smooth symmet
ries of\nLegendrian torus links that cannot be realized by a Legendrian\ni
sotopy. I will also describe how these torus link statements have\nextensi
ons to Legendrian cable links. These results are applications\nof convex s
urface theory. This is joint work with Jennifer L. Dalton\nand John B. Etn
yre.\n
DTSTART:20211122T210000Z
DTEND:20211122T223000Z
LAST-MODIFIED:20211122T181223Z
LOCATION:Fine Hall 314\, Princeton University
SUMMARY:Joint IAS/Princeton University Symplectic Geometry Seminar
URL:https://www.ias.edu/math/events/joint-iasprinceton-university-symplecti
c-geometry-seminar-171
END:VEVENT
BEGIN:VEVENT
UID:34393464-6363-4637-a433-333933353366
DTSTAMP:20220123T174848Z
CREATED:20210720T151244Z
DESCRIPTION:Topic: Exact algorithms for graph coloring\n\nSpeakers: Or Zami
r\n\nAffiliation: Member\, School of Mathematics\n\nAs solutions can be ef
ficiently verified\, any NP-complete problem can\nbe solved by exhaustive
search. Unfortunately\, even for small\ninstances the running time for exh
austive search becomes very high. \n\nOn the bright side\, for many NP-com
plete problems it is possible to\ndesign significantly faster algorithms\,
though still not polynomial\ntime. \n\nSuch algorithms were extensively e
xplored\, even a decade before the\ndefinition of NP. By now we have non-t
rivial running times for many\nproblems including satisfiability\, graph c
oloring\, knapsack\, TSP\,\nmaximum independent sets and more.\n\nIn this
talk\, we will mostly focus on new algorithms for the graph\ncoloring prob
lem.\n
DTSTART:20211123T153000Z
DTEND:20211123T173000Z
LAST-MODIFIED:20211123T121939Z
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-489
END:VEVENT
BEGIN:VEVENT
UID:34666534-3432-4761-a331-303832623138
DTSTAMP:20220123T174848Z
CREATED:20190726T150002Z
DESCRIPTION:
DTSTART:20211123T171500Z
DTEND:20211123T190000Z
LAST-MODIFIED:20190726T150002Z
LOCATION:Dilworth Room
SUMMARY:Institute for Advanced Study / Princeton University Bahcall Lunch
URL:https://www.ias.edu/events/institute-advanced-study-princeton-universit
y-bahcall-lunch-148
END:VEVENT
BEGIN:VEVENT
UID:38373234-3938-4261-b339-343531313538
DTSTAMP:20220123T174848Z
CREATED:20210928T143922Z
DESCRIPTION:Topic: On Arnold's formula for the second variation of energy o
n orbits of 2d vorticities\n\nSpeakers: Vladimír Sverák\n\nAffiliation: Un
iversity of Minnesota\; Member\, School of Mathematics\n\nWe consider vari
ational principles related to V. I. Arnold's stability\ncriteria for stead
y-state solutions of the two-dimensional\nincompressible Euler equation. O
ur goal is to investigate under which\nconditions the quadratic forms defi
ned by the second variation of the\nassociated functionals can be used in
the stability analysis\, both for\nthe Euler evolution and for the Navier-
Stokes equation. Joint work\nwith Thierry Gallay\, https://arxiv.org/pdf/2
110.13739.pdf.\n
DTSTART:20211123T190000Z
DTEND:20211123T200000Z
LAST-MODIFIED:20211123T122229Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Seminar in Analysis and Geometry
URL:https://www.ias.edu/math/events/seminar-analysis-and-geometry-5
END:VEVENT
BEGIN:VEVENT
UID:30383835-3036-4364-a532-623563393965
DTSTAMP:20220123T174848Z
CREATED:20211103T164319Z
DESCRIPTION:Topic: No seminar: Thanksgiving Holiday\n\n
DTSTART:20211124T150000Z
DTEND:20211124T155000Z
LAST-MODIFIED:20211118T201806Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Character Varieties\, Dynamics and Arithmetic
URL:https://www.ias.edu/math/events/character-varieties-dynamics-and-arithm
etic-1
END:VEVENT
BEGIN:VEVENT
UID:34373563-6132-4234-b638-666334363031
DTSTAMP:20220123T174848Z
CREATED:20210917T203511Z
DESCRIPTION:Topic: No seminar\n\n
DTSTART:20211124T160000Z
DTEND:20211124T171500Z
LAST-MODIFIED:20211022T184356Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Arithmetic Groups
URL:https://www.ias.edu/math/events/arithmetic-groups-6
END:VEVENT
BEGIN:VEVENT
UID:62626663-3137-4466-b961-636635336637
DTSTAMP:20220123T174848Z
CREATED:20211119T144916Z
DESCRIPTION:Topic: MHD Turbulence\n\nSpeakers: James Beattie\n\nAffiliation
: Mount Stromlo Observatory at the Australian National University\n\n
DTSTART:20211124T160000Z
DTEND:20211124T170000Z
LAST-MODIFIED:20211119T145641Z
LOCATION:Virtual Meeting
SUMMARY:Princeton University Star Formation/ISM Rendezvous (SFIR)
URL:https://www.ias.edu/sns/events/princeton-university-star-formationism-r
endezvous-sfir-16
END:VEVENT
BEGIN:VEVENT
UID:61373361-3932-4333-b339-616265653163
DTSTAMP:20220123T174848Z
CREATED:20210923T160446Z
DESCRIPTION:Topic: No seminar\n\n
DTSTART:20211124T190000Z
DTEND:20211124T210000Z
LAST-MODIFIED:20211016T020840Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Lectures in Analysis and Geometry
URL:https://www.ias.edu/math/events/lectures-analysis-and-geometry-6
END:VEVENT
BEGIN:VEVENT
UID:64333462-3039-4163-b032-303962343339
DTSTAMP:20220123T174848Z
CREATED:20210930T193234Z
DESCRIPTION:Topic: No seminar: Thanksgiving\n\n
DTSTART:20211124T230000Z
DTEND:20211125T010000Z
LAST-MODIFIED:20211115T194607Z
LOCATION:Birch Garden\, Simons Hall
SUMMARY:Mathematical Conversations
URL:https://www.ias.edu/math/events/mathematical-conversations-220
END:VEVENT
BEGIN:VEVENT
UID:33646361-3632-4965-b630-303039366235
DTSTAMP:20220123T174848Z
CREATED:20211104T173851Z
DESCRIPTION:Topic: No seminar: Thanksgiving Holiday\n\n
DTSTART:20211125T150000Z
DTEND:20211125T170000Z
LAST-MODIFIED:20211118T232221Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Floer Learning Seminar
URL:https://www.ias.edu/math/events/floer-learning-seminar-1
END:VEVENT
BEGIN:VEVENT
UID:63373337-3130-4464-a331-616431313732
DTSTAMP:20220123T174848Z
CREATED:20210923T163416Z
DESCRIPTION:Topic: No seminar: Thanksgiving Holiday\n\n
DTSTART:20211125T190000Z
DTEND:20211125T210000Z
LAST-MODIFIED:20211118T201956Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Discussions in Analysis and Geometry
URL:https://www.ias.edu/math/events/discussions-analysis-and-geometry-6
END:VEVENT
BEGIN:VEVENT
UID:36663665-3238-4161-b236-383036626566
DTSTAMP:20220123T174848Z
CREATED:20210908T214234Z
DESCRIPTION:Topic: No seminar: Thanksgiving Holiday\n\n
DTSTART:20211125T213000Z
DTEND:20211125T223000Z
LAST-MODIFIED:20210929T220805Z
LOCATION:
SUMMARY:Joint IAS/Princeton University Number Theory Seminar
URL:https://www.ias.edu/math/events/joint-iasprinceton-university-number-th
eory-seminar-463
END:VEVENT
BEGIN:VEVENT
UID:64336266-6433-4666-b935-396164323130
DTSTAMP:20220123T174848Z
CREATED:20210916T215507Z
DESCRIPTION:Topic: Complex cobordism and Hamiltonian fibrations\n\nSpeakers
: Mohammed Abouzaid\n\nAffiliation: Columbia University\n\nI will discuss
joint work with McLean and Smith\, lifting the results\nof Seidel\, Lalond
e\, McDuff\, and Polterovich concerning the topology of\nHamiltonian fibra
tions over the 2-sphere from rational cohomology to\ncomplex cobordism. In
addition to the use of Morava K-theory (as in\nthe recent work with Blumb
erg on the Arnold Conjecture)\, the essential\nnew ingredient is the const
ruction of global Kuranishi charts for\ngenus 0 pseudo-holomorphic curves\
; i.e. their realisation as quotients\nof zero loci of sections of equivar
iant vector bundles on manifolds.\n
DTSTART:20211126T141500Z
DTEND:20211126T154500Z
LAST-MODIFIED:20211129T153649Z
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-64
END:VEVENT
BEGIN:VEVENT
UID:36666664-3865-4064-a339-393038353434
DTSTAMP:20220123T174848Z
CREATED:20211119T135158Z
DESCRIPTION:Topic: The Fundamental Plane in the LEGA-C Survey: unraveling t
he M/L variations of massive star-forming and quiescent galaxies at z∼0.8
\n\nSpeakers: Anna de Graaff\n\nAffiliation: Leiden University\n\nEach wee
k\, we hold a relatively informal seminar/discussion series\nwith an empha
sis on extra-galactic and large-scale structure\nastrophysics.\n\nDuring G
alread 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 expla
ins the paper\, section by section\, in greater\ndetail than may be explai
ned within the text of the article. To aid\nwith discussion\, only the art
icle PDF is presented -- no\npowerpoint-style slides. Galread discussions
are very friendly and\ninteractive.\n
DTSTART:20211129T160000Z
DTEND:20211129T170000Z
LAST-MODIFIED:20211124T130917Z
LOCATION:Virtual Meeting
SUMMARY:Princeton University Galread [Galactic/Extragalactic Reading Group]
URL:https://www.ias.edu/sns/events/princeton-university-galread-galacticext
ragalactic-reading-group-36
END:VEVENT
BEGIN:VEVENT
UID:61663630-6539-4966-b531-336139643835
DTSTAMP:20220123T174848Z
CREATED:20210720T150453Z
DESCRIPTION:Topic: No Seminar\n\n
DTSTART:20211129T161500Z
DTEND:20211129T171500Z
LAST-MODIFIED:20210913T131457Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Computer Science/Discrete Mathematics Seminar I
URL:https://www.ias.edu/math/events/computer-sciencediscrete-mathematics-se
minar-i-494
END:VEVENT
BEGIN:VEVENT
UID:62313865-3934-4530-b031-656639313138
DTSTAMP:20220123T174848Z
CREATED:20210922T131724Z
DESCRIPTION:Topic: General Discussion\n\n
DTSTART:20211129T170000Z
DTEND:20211129T180000Z
LAST-MODIFIED:20211124T133706Z
LOCATION:Virtual Meeting
SUMMARY:Princeton University Extrasolar Planet Discussion Group
URL:https://www.ias.edu/sns/events/princeton-university-extrasolar-planet-d
iscussion-group-41
END:VEVENT
BEGIN:VEVENT
UID:36646366-3766-4639-b231-346435636166
DTSTAMP:20220123T174848Z
CREATED:20210920T163345Z
DESCRIPTION:Topic: Topic 1: Weak lensing: globally optimal estimator and a
new probe of the high-redshift Universe Topic 2: Hidden symmetries of blac
k holes and the vanishing of the Love numbers\n\nSpeakers: Abhishek Maniya
r and Luca Santoni\n\nAffiliation: New York University and ICTP\n\nAbstrac
t 1: In recent years\, weak lensing of the cosmic microwave\nbackground (C
MB) has emerged as a powerful tool to probe fundamental\nphysics. The prim
e target of CMB lensing surveys is the lensing\npotential\, which is recon
structed from observed CMB temperature T and\npolarization E and B fields.
In this talk\, I will show that the\nclassic Hu-Okamoto (HO02) estimator
used for the lensing potential\nreconstruction is not the absolute optimal
lensing estimator that can\nbe constructed out of quadratic combinations
of T\, E and B fields.\nInstead\, I will derive the global-minimum-varianc
e (GMV) lensing\nquadratic estimator and show explicitly that the HO02 est
imator is\nsuboptimal to the GMV estimator.\n\nRapidly expanding field of
the line intensity mapping (LIM) promises\nto revolutionise our understand
ing of the galaxy formation and\nevolution. Although primarily a tool for
galaxy astrophysics\, LIM\ntechnique can be used as a cosmological probe a
nd I will point out one\nsuch application in rest of the talk. I will show
that a linear\ncombination of lensing maps from the cosmic microwave back
ground (CMB)\nand from line intensity maps (LIMs) allows to exactly null t
he\nlow-redshift contribution to CMB lensing\, and extract only the\ncontr
ibution from the Universe from/beyond reionization. This would\nprovide a
unique probe of the Dark Ages\, complementary with 21 cm. I\nwill quantify
the interloper bias (which is a key hurdle to LIM\ntechniques) to LIM len
sing for the first time\, and derive a 'LIM-pair'\nestimator which nulls i
t exactly.\n\nAbstract 2: It is well known that asymptotically flat black
holes in\ngeneral relativity have a vanishing static tidal response (i.e.\
, zero\nLove numbers). I will show that this is the result of a hidden\nst
ructure of ladder symmetries governing static (spin 0\,1\,2)\nperturbation
s around black holes\, and I will discuss their underlying\ngeometric orig
in.\n
DTSTART:20211129T173000Z
DTEND:20211129T190000Z
LAST-MODIFIED:20211124T131523Z
LOCATION:Zoom\; IAS\, Bloomberg Hall\, Biology Conference Room
SUMMARY:Institute for Advanced Study/Princeton University Early Universe/Co
smology Lunch Discussion
URL:https://www.ias.edu/sns/events/institute-advanced-studyprinceton-univer
sity-early-universecosmology-lunch-discussion-32
END:VEVENT
BEGIN:VEVENT
UID:63366166-3964-4866-b463-306465633739
DTSTAMP:20220123T174848Z
CREATED:20210916T220138Z
DESCRIPTION:Topic: Fluid equations: regularity and Kolmogorov’s turbulence
theory\n\nSpeakers: Mimi Dai\n\nAffiliation: University of Illinois\, Chic
ago\; von Neumann Fellow\, School of Mathematics\n\nThe regularity theory
for the Navier-Stokes equation will be reviewed.\nMotivations from Kolmogo
rov’s phenomenological theory of turbulence\nwill be discussed. Rigorous m
athematical results are obtained to\nconfirm some of the phenomenologies.
\n
DTSTART:20211129T190000Z
DTEND:20211129T200000Z
LAST-MODIFIED:20211129T153021Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Members’ Colloquium
URL:https://www.ias.edu/math/events/members-colloquium-16
END:VEVENT
BEGIN:VEVENT
UID:39643931-3462-4430-b765-333565323037
DTSTAMP:20220123T174848Z
CREATED:20210928T185657Z
DESCRIPTION:Topic: Morse-Bott theory on singular analytic spaces and applic
ations to the topology of symplectic four-manifolds\n\nSpeakers: Paul Feeh
an\n\nAffiliation: Rutgers University\n\nWe describe two extensions\, call
ed the virtual Morse-Bott index and\ncircle-equivariant virtual Morse-Bott
index\, of the classical\nMorse-Bott index of a Morse-Bott function on a
smooth manifold to the\nsetting of (a) suitably defined analytic functions
on singular\nanalytic spaces and (b) suitably defined Hamiltonian functio
ns on\nalmost symplectic\, singular analytic spaces equipped with circle\n
actions. Almost symplectic\, singular analytic spaces with circle\nactions
are pervasive in gauge theory and key examples include the\nmoduli spaces
of Higgs pairs over Riemann surfaces\, moduli spaces of\nprojective vorti
ces over complex Kaehler manifolds\, and moduli spaces\nof non-Abelian mon
opoles over smooth Riemannian four-manifolds. We\nexplain how the concept
of circle-equivariant virtual Morse-Bott index\ncan potentially be used to
answer questions arising in the geography\nof smooth four-manifolds\, suc
h as whether constraints on the topology\nof compact complex surfaces of g
eneral type (the Bogomolov-Miyaoka-Yau\ninequality) continue to hold for s
ymplectic four-manifolds or even for\nsmooth four-manifolds of Seiberg-Wit
ten simple type.\n
DTSTART:20211129T210000Z
DTEND:20211129T223000Z
LAST-MODIFIED:20211129T153256Z
LOCATION:Simonyi Hall 101
SUMMARY:Joint IAS/Princeton University Symplectic Geometry Seminar
URL:https://www.ias.edu/math/events/joint-iasprinceton-university-symplecti
c-geometry-seminar-172
END:VEVENT
BEGIN:VEVENT
UID:34616639-6564-4535-b466-323566373737
DTSTAMP:20220123T174848Z
CREATED:20210720T151257Z
DESCRIPTION:Topic: No Seminar\n\n
DTSTART:20211130T153000Z
DTEND:20211130T173000Z
LAST-MODIFIED:20210913T131534Z
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-490
END:VEVENT
BEGIN:VEVENT
UID:34313530-3238-4662-a331-353033323661
DTSTAMP:20220123T174848Z
CREATED:20190726T150002Z
DESCRIPTION:
DTSTART:20211130T171500Z
DTEND:20211130T190000Z
LAST-MODIFIED:20190726T150002Z
LOCATION:Dilworth Room
SUMMARY:Institute for Advanced Study / Princeton University Bahcall Lunch
URL:https://www.ias.edu/events/institute-advanced-study-princeton-universit
y-bahcall-lunch-149
END:VEVENT
BEGIN:VEVENT
UID:39663234-3963-4163-a235-343161356565
DTSTAMP:20220123T174848Z
CREATED:20210928T143935Z
DESCRIPTION:Topic: h-principle without pre-conditions for ridgy Lagrangians
transverse to a distribution\n\nSpeakers: Yakov Eliashberg\n\nAffiliation
: Stanford University\; Member\, School of Mathematics\n\nI will explain a
proof of a joint with D. Alvarez-Gavela and D. Nadler\ntheorem which allo
ws to make a Lagrangian submanifold transverse to a\ngiven Lagrangian dist
ribution in exchange for making them piecewise\nsmooth with canonical sing
ularities. This result is an essential part\nof the arborealization projec
t.\n
DTSTART:20211130T190000Z
DTEND:20211130T200000Z
LAST-MODIFIED:20211130T134938Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Seminar in Analysis and Geometry
URL:https://www.ias.edu/math/events/seminar-analysis-and-geometry-6
END:VEVENT
BEGIN:VEVENT
UID:36333433-6433-4765-b634-343931633037
DTSTAMP:20220123T174848Z
CREATED:20211103T164333Z
DESCRIPTION:Topic: Integral points on character varieties\n\nSpeakers: Junh
o Peter Whang\n\nAffiliation: Seoul National University\n\nIn this talk\,
we discuss the Diophantine study of relative\nSL2-character varieties of s
urfaces. In particular\, we prove that the\nintegral points on these varie
ties are effectively finitely generated\nin a precise sense\, and in parti
cular their existence is decidable.\nThe proof combines mapping class grou
p descent (using geometric tools)\nand classical finite generation results
for integral points on affine\nhomogeneous varieties under arithmetic gro
ups.
DTSTART:20211201T150000Z
DTEND:20211201T155000Z
LAST-MODIFIED:20211201T144405Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Character Varieties\, Dynamics and Arithmetic
URL:https://www.ias.edu/math/events/character-varieties-dynamics-and-arithm
etic-2
END:VEVENT
BEGIN:VEVENT
UID:30356439-6431-4336-a131-366361616332
DTSTAMP:20220123T174848Z
CREATED:20210917T203525Z
DESCRIPTION:Topic: Applications to modular forms and noncongruence arithmet
ic groups\n\nSpeakers: Yunqing Tang\, Frank Calegari\n\nAffiliation: Princ
eton University\; University of Chicago\n\nWe explain our proof of the unb
ounded denominators conjecture. This\ntalk will require the main theorem o
f the lecture on Nov. 17\, 2021\, as\na “black box” but otherwise be logic
ally independent of that talk.\n
DTSTART:20211201T160000Z
DTEND:20211201T171500Z
LAST-MODIFIED:20211201T150921Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Arithmetic Groups
URL:https://www.ias.edu/math/events/arithmetic-groups-7
END:VEVENT
BEGIN:VEVENT
UID:39636437-6434-4563-b534-383466653936
DTSTAMP:20220123T174848Z
CREATED:20211124T161103Z
DESCRIPTION:Topic: Applications of auto-differentiation to dust\, stars\, d
ynamics\n\nSpeakers: Gregory Green\n\nAffiliation: MPIA\n\nMachine learnin
g has found increasing use in astronomy over the last\nfew years. In this
talk\, instead of discussing machine learning\nitself\, I will discuss how
a mathematical tool borrowed from machine\nlearning - auto-differentiatio
n - can be put to use in astronomy. I\nwill focus on applications of auto-
differentiation to modeling the\nthree-dimensional distribution of interst
ellar dust\, stellar spectral\nenergy distributions and gravitational pote
ntials. The ability to\nconstruct highly flexible yet differentiable model
s allows elegant and\nstraightforward approaches to solving each of these
three problems.\n
DTSTART:20211201T160000Z
DTEND:20211201T170000Z
LAST-MODIFIED:20211129T132659Z
LOCATION:Virtual Meeting
SUMMARY:Princeton University Star Formation/ISM Rendezvous (SFIR)
URL:https://www.ias.edu/sns/events/princeton-university-star-formationism-r
endezvous-sfir-17
END:VEVENT
BEGIN:VEVENT
UID:38383564-3261-4037-a537-303737613964
DTSTAMP:20220123T174848Z
CREATED:20210923T160500Z
DESCRIPTION:Topic: Rigidity and flexibility of isometric embeddings in C^{1
\,\alpha} I\n\nSpeakers: Camillo De Lellis\n\nAffiliation: IBM von Neumann
Professor\; School of Mathematics\n\n
DTSTART:20211201T190000Z
DTEND:20211201T210000Z
LAST-MODIFIED:20211201T161825Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Lectures in Analysis and Geometry
URL:https://www.ias.edu/math/events/lectures-analysis-and-geometry-7
END:VEVENT
BEGIN:VEVENT
UID:32663336-6263-4965-b765-653766343137
DTSTAMP:20220123T174848Z
CREATED:20210908T214248Z
DESCRIPTION:Topic: Abelian varieties not isogenous to Jacobians\n\nSpeakers
: Jacob Tsimerman\n\nAffiliation: University of Toronto\n\nKatz and Oort r
aised the following question: Given an algebraically\nclosed field $k$\, a
nd a positive integer $g > 3$\, does there exist an\nabelian variety over
k not isogenous to a Jacobian over $k$? There has\nbeen much progress on t
his question\, with several proofs now existing\nover $\overline{\mathbb{Q
}}$. We discuss recent work with Ananth\nShankar\, answering this question
in the affirmative over\n$\overline{\mathbb{F}_q(T)}$. Our method introdu
ces new types of local\nobstructions\, and can be used to give another pro
of over\n$\overline{\mathbb{Q}}$.\n
DTSTART:20211201T213000Z
DTEND:20211202T223000Z
LAST-MODIFIED:20211201T151255Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Joint IAS/Princeton University Number Theory Seminar
URL:https://www.ias.edu/math/events/joint-iasprinceton-university-number-th
eory-seminar-464
END:VEVENT
BEGIN:VEVENT
UID:63393138-3332-4034-b736-316361343938
DTSTAMP:20220123T174848Z
CREATED:20210930T193247Z
DESCRIPTION:Topic: A magnetic interpretation of the nodal count on graphs\n
\nSpeakers: Lior Alon\n\nAffiliation: Member\, School of Mathematics\n\nTh
e study of nodal sets\, i.e. zero sets of eigenfunctions\, on\ngeometric o
bjects can be traced back to De Vinci\, Galileo\, Hook\, and\nChladni. Tod
ay it is a central subject of spectral geometry. Sturm\n(1836) showed that
in 1D\, the $n$-th eigenfunction of the Laplacian\nhas $n-1$ nodal points
. Fiedler (1975) proved a similar result for the\ndiscrete Laplacian for t
ree graphs. However\, if a graph is not a tree\nthen the nodal count may d
eviate from $n-1$. Berkolaiko (2013) showed\nthat this deviation captures
the stability of the spectrum under\nmagnetic perturbations of the operato
r. In this talk\, I will sketch a\nproof given by Colin de Verideire\, whi
ch highlights the geometry of\nthe problem.\n\nThe talk should be approach
able without any needed background.\n
DTSTART:20211201T230000Z
DTEND:20211202T010000Z
LAST-MODIFIED:20211124T141026Z
LOCATION:Birch Garden\, Simons Hall
SUMMARY:Mathematical Conversations
URL:https://www.ias.edu/math/events/mathematical-conversations-221
END:VEVENT
BEGIN:VEVENT
UID:33396237-3539-4831-a235-356537353439
DTSTAMP:20220123T174848Z
CREATED:20211104T173905Z
DESCRIPTION:
DTSTART:20211202T150000Z
DTEND:20211202T170000Z
LAST-MODIFIED:20211104T173913Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Floer Learning Seminar
URL:https://www.ias.edu/math/events/floer-learning-seminar-2
END:VEVENT
BEGIN:VEVENT
UID:39336264-3365-4230-b362-313066346662
DTSTAMP:20220123T174848Z
CREATED:20210903T184343Z
DESCRIPTION:Topic: The Observational Quest for Transiting Exomoons\n\nSpeak
ers: David Kipping\n\nAffiliation: Columbia University\n\nWith thousands o
f known transiting exoplanets\, many as small as the\nEarth\, our detectio
n capabilities are beginning to border on that\nnecessary to detect the la
rgest moons found in our solar system.\nExomoons would offer new opportuni
ties to understand the origins of\nplanetary systems\, as well as potentia
lly playing an important role in\nthe search for life. I will discuss the
various methods proposed to\nidentify such objects\, the state of our know
ledge based on present\nobservations\, and the potential for new discoveri
es via upcoming\nobservations (such as JWST)\, as well as new methodologic
al\ndevelopments. An update on the exomoon candidate Kepler-1625b-i will\n
be offered from new observations and tests. Going forward\, it is\nsuggest
ed that the statistical validation of exomoons may enter the\nfray\, akin
to many of Kepler’s exoplanets\, but JWST could present\nfar more compelli
ng detections should it be used for exomoon hunting.\n\nREGISTRATION FORM
\n[https://forms.ias.edu/form/sns-astrophysics-seminar]\n
DTSTART:20211202T160000Z
DTEND:20211202T170000Z
LAST-MODIFIED:20211124T132839Z
LOCATION:Bloomberg Lecture Hall and Zoom
SUMMARY:Institute for Advanced Study Astrophysics Seminar
URL:https://www.ias.edu/sns/events/institute-advanced-study-astrophysics-se
minar-25
END:VEVENT
BEGIN:VEVENT
UID:65346465-6239-4063-b632-636637326330
DTSTAMP:20220123T174848Z
CREATED:20210922T141917Z
DESCRIPTION:Topic: How to decipher the accretion history of galaxies: Insig
hts from stellar halos\, bulges and brightest stellar streams\n\nSpeakers:
Antonela Monachesi\n\nAffiliation: Kapteyn Astronomical Institute\n\nLarg
e luminous galaxies like the Milky Way grow in mass hierarchically\nthroug
h accretion and merging. Diffuse stellar halos around galaxies\nare formed
primarily thanks to this process\, and thus encode unique\ninformation ab
out the merger history of galaxies. In addition\, stellar\nhalos may probe
early chaotic phases of galaxy formation through\npossible in-situ stars
formed in turbulent gas at early times and may\nalso contain stars kicked
out of galactic disks by interactions with\nsatellite galaxies. Due to the
extreme surface brightness of stellar\nhalos in galaxies like the Milky W
ay ( muV > 28 mag/arcsec-2)\, this\ncomponent is hard to detect observatio
nally. However\, during the last\ndecade\, and thanks to exquisite observa
tions\, significant progress has\nbeen made to resolve the stellar halos o
f nearby galaxies. These halos\nshow a large diversity in their properties
for Milky Way-like galaxies\nthat are alike in terms of total luminosity
and stellar mass\; and\nunderstanding this diversity is crucial to gain in
sights on their\naccretion history. In this seminar I will first present t
he properties\nthat we find on the stellar halos of nearby Milky Way-like
galaxies\,\nmainly obtained from HST and Subaru observations. I will then
present\nthe results from the stellar halos of the Auriga simulations\, a
suite\nof thirty cosmological magneto-hydrodynamical zoom-in simulations o
f\nMilky Way-mass galaxies. The Auriga simulations represent one of the\nl
argest and highest resolution samples of simulated Milky Way-mass\ngalaxie
s with which it is possible to investigate in detail the\nproperties and o
rigin of individual stellar halos. I will compare the\nresults from the Au
riga simulations with those obtained from\nobservations of nearby galaxies
and discuss observational signatures\nand properties of the stellar halos
\, brightest stellar streams and\nbulges that allow us to decode the accre
tion and merger history of\nobserved galaxies.\n
DTSTART:20211202T183000Z
DTEND:20211202T193000Z
LAST-MODIFIED:20211124T133311Z
LOCATION:Virtual Meeting
SUMMARY:Rutgers University Astrophysics Seminar
URL:https://www.ias.edu/sns/events/rutgers-university-astrophysics-seminar-
12
END:VEVENT
BEGIN:VEVENT
UID:39653530-3137-4064-b331-353562346335
DTSTAMP:20220123T174848Z
CREATED:20210923T163430Z
DESCRIPTION:Topic: Reading seminar on Tao's blow-up paper for an averaged N
avier-Stokes system\n\nSpeakers: Vladimír Sverák\n\nAffiliation: Universit
y of Minnesota\; Member\, School of Mathematics\n\n
DTSTART:20211202T190000Z
DTEND:20211202T210000Z
LAST-MODIFIED:20211118T221613Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Discussions in Analysis and Geometry
URL:https://www.ias.edu/math/events/discussions-analysis-and-geometry-7
END:VEVENT
BEGIN:VEVENT
UID:39326166-6236-4136-a235-643038656133
DTSTAMP:20220123T174848Z
CREATED:20210916T215521Z
DESCRIPTION:Topic: No seminar\n\n
DTSTART:20211203T141500Z
DTEND:20211203T154500Z
LAST-MODIFIED:20211123T220517Z
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-65
END:VEVENT
BEGIN:VEVENT
UID:30346331-3535-4662-b134-643065393565
DTSTAMP:20220123T174848Z
CREATED:20210922T143626Z
DESCRIPTION:Topic: Time-dependent screening of the electric field in pulsar
discharges and its implications for coherent radio emission\n\nSpeakers:
Elizabeth Ann Tolman\n\nAffiliation: Institute of Advanced Studies and Pri
nceton University\n\nPulsars produce coherent radio emission\, the source
of which has\nremained enigmatic. Recent computational work suggests this
emission\nmay be produced in nonstationary pair plasma discharges in the p
ulsar\npolar cap\, where the pulsar electric field is screened by\nnewly-p
roduced electron-positron pairs\, leading to the production of\nplasma wav
es which escape from the magnetosphere as radio emission. In\nthis talk\,
we present the physical principles governing the evolution\nof wave energy
in the polar cap's time-dependent\, relativistic\,\ncollisionless pair pl
asma\, for both linear waves and nonlinear waves.\nThese principles are th
en used to analytically determine the change\nin the pulsar polar cap elec
tric field amplitude as it is screened.\nFinally\, we discuss the implicat
ions of this model for coherent radio\nemission and the interpretation of
pulsar observations.\n
DTSTART:20211203T173000Z
DTEND:20211203T190000Z
LAST-MODIFIED:20211124T151006Z
LOCATION:Dome Room\, Peyton Hall or Zoom
SUMMARY:Princeton University Astroplasmas Seminar
URL:https://www.ias.edu/sns/events/princeton-university-astroplasmas-semina
r-19
END:VEVENT
BEGIN:VEVENT
UID:38396161-6332-4134-a262-646137623836
DTSTAMP:20220123T174848Z
CREATED:20210920T151118Z
DESCRIPTION:Topic: TBA\n\nSpeakers: Peter Doze\n\nAffiliation: Rutgers Univ
ersity\n\nEach week\, we hold a relatively informal seminar/discussion ser
ies\nwith an emphasis on extra-galactic and large-scale structure\nastroph
ysics.\n\nDuring Galread a leader/visitor presents a recent paper to the\n
discussion group. The PDF of the paper is projected onto a large\nscreen\,
and a guest explains the paper\, section by section\, in greater\ndetail
than may be explained within the text of the article. To aid\nwith discuss
ion\, only the article PDF is presented -- no\npowerpoint-style slides. Ga
lread discussions are very friendly and\ninteractive.\n
DTSTART:20211206T160000Z
DTEND:20211206T170000Z
LAST-MODIFIED:20210920T151202Z
LOCATION:Virtual Meeting
SUMMARY:Princeton University Galread [Galactic/Extragalactic Reading Group]
URL:https://www.ias.edu/sns/events/princeton-university-galread-galacticext
ragalactic-reading-group-35
END:VEVENT
BEGIN:VEVENT
UID:65653431-3163-4563-a235-663939653165
DTSTAMP:20220123T174848Z
CREATED:20210720T150508Z
DESCRIPTION:Topic: List decoding with double samplers\n\nSpeakers: Inbal Li
vni-Navon\n\nAffiliation: Weizmann Institute\n\nThe ABNNR encoding is a cl
assical encoding scheme that amplifies the\ndistance of an error correctin
g code. The encoding takes an error\ncorrecting code with a small distance
and constructs an error\ncorrecting code with distance approaching one\,
by using a bipartite\nexpander graph.\n\nThe ABNNR encoding has an efficie
nt decoding algorithm\, which can\ncorrect a codeword with not too many co
rrupted coordinates. However\,\nif half or more of the coordinates are cor
rupted\, the decoding\nalgorithm does not work.\n\nIn this talk\, I'm goin
g to present a list-decoding algorithm for the\nABNNR encoding\, which can
correct a large fraction of errors. In\nlist-decoding\, instead of return
ing a single codeword\, the algorithm\nreturns a list of possible codeword
s that are somewhat close to the\ninput. This is the first list-decoding a
lgorithm for the ABNNR\nencoding. I am going to give a high-level overview
of the algorithm\,\nits requirements\, and talk about its correctness.\n
\nThis is from joint work with Irit Dinur\, Prahladh Harsha\, Tali\nKaufma
n\, and Amnon Ta-Shma.\n
DTSTART:20211206T161500Z
DTEND:20211206T171500Z
LAST-MODIFIED:20211206T142749Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Computer Science/Discrete Mathematics Seminar I
URL:https://www.ias.edu/math/events/computer-sciencediscrete-mathematics-se
minar-i-495
END:VEVENT
BEGIN:VEVENT
UID:39373834-6132-4965-b462-326433336536
DTSTAMP:20220123T174848Z
CREATED:20210922T131743Z
DESCRIPTION:Topic: Planet Hunters TESS: people-powered exoplanet discovery
in TESS data\n\nSpeakers: Nora Eisner\n\nAffiliation: University of Oxford
\n\nI will present results from the Planet Hunters TESS (PHT) project\,\nw
hich harnesses the power of citizen science to find transit events in\nthe
TESS data by engaging tens of thousands of volunteers. To date\,\nPHT vol
unteers have classified all two-minute cadence TESS data up to\nsector 34
and discovered over 115 planet candidates that weren’t\npreviously known.
Most are long-period planets\, but we also identify a\nwide range of other
interesting planet and stellar systems. Our\nresults show that humans can
outperform the automated detection\npipelines for certain types of transi
ts\, especially single\n(long-period) transits\, as well as aperiodic tran
sits (circumbinary\nplanets) and planets around rapidly rotating\, active
(young systems)\,\nor otherwise variable stars. I will give an overview of
our detection\nand vetting process\, and show how our findings complement
the\npopulation of planets identified by automated algorithms. Finally\,
I\nwill present two of our most recent discoveries\, a system of two\nplan
ets around the bright star HD 152843\, which has outstanding\nprospects fo
r atmospheric characterisation\, and a puzzling compact\nhierarchical trip
le star system. \n
DTSTART:20211206T170000Z
DTEND:20211206T180000Z
LAST-MODIFIED:20211202T140412Z
LOCATION:Virtual Meeting
SUMMARY:Princeton University Extrasolar Planet Discussion Group
URL:https://www.ias.edu/sns/events/princeton-university-extrasolar-planet-d
iscussion-group-42
END:VEVENT
BEGIN:VEVENT
UID:30383864-3363-4436-b464-373233313263
DTSTAMP:20220123T174848Z
CREATED:20211020T164237Z
DESCRIPTION:Topic: Topic 1: Seeking solutions for the Hubble tension Topic
2: Likelihood approximations for (future) large angular scale CMB data\n\n
Speakers: Meng-Xiang Lin and Roger de Belsunce\n\nAffiliation: KICP\, Univ
ersity of Chicago and KICP\, Cambridge\n\nAbstract 1: Despite the success
of LCDM model\, there is a growing\ntension between measurements of the cu
rrent expansion rate from the\nlocal distance ladder and from the cosmic m
icrowave background (CMB).\nKnown as the $H_0$ tension\, this observationa
l discrepancy presents a\npossible challenge to LCDM and has become an inc
reasingly significant\nmystery to solve in recent years.\nIn this seminar\
, I will talk about the currently proposed solutions\nfor the Hubble tensi
on\, and particularly focus on Acoustic Dark Energy\n(an Early Dark Energy
-like) model. Acoustic Dark Energy model could\nprovide the high H0 soluti
on with a simple scalar field realization.\nThe possible paths to better s
olutions in the future will also be\ntalked about.\n\nAbstract 2: In this
seminar\, I will talk about challenges arising in\ncosmological data analy
sis: an accurate representation of the\nlikelihood\, as well as the abilit
y to model systematics are crucial in\norder to make reliable inference. E
xact likelihoods are either unknown\nor intractable. I will discuss how we
can make reliable inference from\nnoise and systematics dominated signals
\, such as the optical depth to\nreionization (tau) or primordial gravitat
ional waves\, parametrised by\nthe tensor-to-scalar ratio (r)\, from large
-scale CMB data. The\npresented methods range from likelihood-approximatio
ns to\nsimulation-based approaches to constrain cosmological parameters. T
he\ndeveloped methods will be required for next-generation CMB surveys.\n
\nREGISTRATION\n[https://forms.ias.edu/form/sns-pu-ias-joint-cosmology-lun
ch]\n
DTSTART:20211206T173000Z
DTEND:20211206T190000Z
LAST-MODIFIED:20211202T141250Z
LOCATION:Zoom\; PU\, Peyton Hall 205
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-33
END:VEVENT
BEGIN:VEVENT
UID:36333430-6437-4032-b737-646130366335
DTSTAMP:20220123T174848Z
CREATED:20210916T220150Z
DESCRIPTION:Topic: Old and New Results on the Spread of the Spectrum of a G
raph\n\nSpeakers: John C Urschel\n\nAffiliation: Member\, School of Mathem
atics\n\nThe spread of a matrix is defined as the diameter of its spectrum
.\nThis quantity has been well-studied for general matrices and has\nrecen
tly grown in popularity for the specific case of the adjacency\nmatrix of
a graph. Most notably\, Gregory\, Herkowitz\, and Kirkland\nproved a numbe
r of key results for the spread of a graph and made two\nkey conjectures r
egarding graphs that maximize spread. In particular\,\nthey conjectured th
at the maximum spread over all graphs with a fixed\nnumber of vertices is
given by the join of a clique and independent\nset and that the maximum sp
read over all graphs with a fixed number of\nvertices and edges is given b
y a bipartite graph if one exists. In\nthis talk\, I will review some of t
he key results regarding the spread\nof a general matrix\, some known resu
lts for the specific case of an\nadjacency matrix\, and give a high-level
outline of a recent paper\nregarding these two conjectures. This is joint
work with Jane Breen\,\nAlex Riasanovsky\, and Michael Tait.\n
DTSTART:20211206T190000Z
DTEND:20211206T200000Z
LAST-MODIFIED:20211206T142908Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Members’ Colloquium
URL:https://www.ias.edu/math/events/members-colloquium-17
END:VEVENT
BEGIN:VEVENT
UID:30623533-6330-4634-a464-373735346563
DTSTAMP:20220123T174848Z
CREATED:20210928T185710Z
DESCRIPTION:Topic: Producing algebraic curves in projective families via Fl
oer theory\n\nSpeakers: Alex Pieloch\n\nAffiliation: Columbia University\n
\nWe will discuss the existence of rational (multi)sections and\nuniruling
s for projective families $f: X \to CP^1$ with at most two\nsingular fibre
s. In particular\, we will discuss two ingredients that\nare used to const
ruct the above algebraic curves. The first is local\nsymplectic cohomology
groups associated to compact subsets of convex\nsymplectic domains. The s
econd is a degeneration to the normal cone\nargument that allows one to pr
oduce closed curves in $X$ from open\ncurves (which are produced using loc
al symplectic cohomology) in the\ncomplement of $X$ by a singular fibre.\n
DTSTART:20211206T210000Z
DTEND:20211206T223000Z
LAST-MODIFIED:20211206T145841Z
LOCATION:Fine Hall 314\, Princeton University
SUMMARY:Joint IAS/Princeton University Symplectic Geometry Seminar
URL:https://www.ias.edu/math/events/joint-iasprinceton-university-symplecti
c-geometry-seminar-173
END:VEVENT
BEGIN:VEVENT
UID:38356339-6230-4034-b634-666337396466
DTSTAMP:20220123T174848Z
CREATED:20210720T151310Z
DESCRIPTION:Topic: An Introduction to Binary Code Bounds\n\nSpeakers: Ferna
ndo Granha Jeronimo\n\nAffiliation: Member\, School of Mathematics\n\nA bi
nary code is simply any subset of 0/1 strings of a fixed length.\nGiven tw
o strings\, a standard way of defining their distance is by\ncounting the
number of positions in which they disagree. Roughly\nspeaking\, if element
s of a code are sufficiently far apart\, then the\ncode is resilient to er
rors. However\, requiring a large minimum\ndistance reduces the maximum po
ssible size of a code. Finding precise\ntrade-offs between minimum distanc
e and maximum size of binary codes\nremains a longstanding open problem.\n
\nIn this talk\, we plan to give a brief introduction to this problem\nsur
veying some known size bounds for binary codes given a minimum\ndistance r
equirement. The best existential bounds come from simple\nprobabilistic ar
guments dating back to 1950s. In contrast\, the best\nimpossibility bounds
come from a careful theoretical analysis\, dating\nback to 1970s\, of Del
sarte's linear programs. There is an exponential\ngap between these bounds
.\n\nWe will also discuss a new linear programming hierarchy tailored to\n
linear codes. This hierarchy is structurally similar to Delsarte's\nlinear
programs\, coinciding with them at its first level\, but proven\nto conve
rge to the maximum possible size of a linear code given a\ndistance requir
ement.\n\nThis new hierarchy is based on joint work with Leonardo Coreglia
no and\nChris Jones.\n
DTSTART:20211207T153000Z
DTEND:20211207T173000Z
LAST-MODIFIED:20211207T132741Z
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-491
END:VEVENT
BEGIN:VEVENT
UID:34633331-3532-4765-b739-366132333631
DTSTAMP:20220123T174848Z
CREATED:20210928T143949Z
DESCRIPTION:Topic: The landscape law and wave localization\n\nSpeakers: Svi
tlana Mayboroda\n\nAffiliation: University of Minnesota\; von Neumann Fell
ow\, School of Mathematics\n\nComplexity of the geometry\, randomness of t
he potential\, and many\nother irregularities of the system can cause powe
rful\, albeit quite\ndifferent\, manifestations of localization\, a phenom
enon of sudden\nconfinement of waves\, or eigenfunctions\, to a small port
ion of the\noriginal domain. In the present talk we show that behind a pos
sibly\ndisordered system there exists a structure\, referred to as a lands
cape\nfunction\, which can predict the location and shape of the localized
\neigenfunctions\, a pattern of their exponential decay\, and deliver\nacc
urate bounds for the corresponding eigenvalues. In particular\, we\nestabl
ish the first non-asymptotic estimates from above and below on\nthe integr
ated density of states of the Schroedinger operator using a\ncounting func
tion for the minima of the localization landscape.\n
DTSTART:20211207T190000Z
DTEND:20211207T200000Z
LAST-MODIFIED:20211207T132808Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Seminar in Analysis and Geometry
URL:https://www.ias.edu/math/events/seminar-analysis-and-geometry-7
END:VEVENT
BEGIN:VEVENT
UID:63663865-6539-4538-a661-636633643334
DTSTAMP:20220123T174848Z
CREATED:20211007T152040Z
DESCRIPTION:Topic: Stable Vortex Sheets and Irreversibility of Turbulence\n
\nSpeakers: Alexander Migdal\n\nAffiliation: New York University\n\nNew ki
nds of vortex sheets with vorticity confined to the boundary\nlayer are pr
oposed and investigated in detail. Exact solutions of the\nsteady Navier-S
tokes equations for a planar vortex sheet in arbitrary\nbackground strain
are found in terms of hypergeometric functions.These\nsolutions are stable
only under certain conditions on background\nstrain.\n\nThe stability con
ditions (CVS equations) reduce to vanishing component\nof the local strain
in the direction of the velocity gap\, in addition\nto the usual requirem
ent of vanishing normal velocity on each side.\nThe normal component of th
e strain must be negative for stability\,\nwhich is the origin of an irrev
ersibility of Turbulence in our theory.\n\nAnomalous energy dissipation (s
urface enstrophy) is conserved on CVS\nvortex sheets in the Navier-Stokes
equation.\n\nThe CVS equations serve as boundary conditions to the Euler e
quations\nand also determine the shape of the surface up to a few paramete
rs.\nThese parameters are the eigenvalues of the background strain plus\nl
ocation and rotation matrix.\n\nWe argue that this background strain is a
random gaussian symmetric\ntraceless matrix with the calculable distributi
on of eigenvalues. The\nvariance of this Gaussian tensor is related to the
energy dissipation\nby self-consistency equations of mean-field theory.\n
\nThe fluctuating ratio of eigenvalues leads to multifractal properties\no
f the vortex surface\, offering a possible explanation of the\nmultifracta
l scaling laws for velocity differences in extreme\nturbulence.\n\nThe ano
malous energy dissipation has a universal probability\ndistribution in our
theory\, which is calculated numerically.\n
DTSTART:20211207T210000Z
DTEND:20211207T220000Z
LAST-MODIFIED:20211207T132829Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Special Seminar
URL:https://www.ias.edu/math/events/special-seminar-66
END:VEVENT
BEGIN:VEVENT
UID:30306264-3933-4433-a634-383839336437
DTSTAMP:20220123T174848Z
CREATED:20211103T164345Z
DESCRIPTION:Topic: Effective mapping class group dynamics\n\nSpeakers: Fran
cisco Andres Arana-Herrera\n\nAffiliation: Member\, School of Mathematics
\n\nMotivated by counting problems for closed geodesics on hyperbolic\nsur
faces\, I will present a family of new results describing the\ndynamics of
mapping class groups on Teichmüller spaces and spaces of\nclosed curves o
f closed surfaces.
DTSTART:20211208T150000Z
DTEND:20211208T155000Z
LAST-MODIFIED:20211208T131510Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Character Varieties\, Dynamics and Arithmetic
URL:https://www.ias.edu/math/events/character-varieties-dynamics-and-arithm
etic-3
END:VEVENT
BEGIN:VEVENT
UID:38373066-6232-4365-a639-313635653931
DTSTAMP:20220123T174848Z
CREATED:20210917T203538Z
DESCRIPTION:Topic: Commutators in SL_2 and Markoff Surfaces\n\nSpeakers: Pe
ter Sarnak\n\nAffiliation: Professor\, School of Mathematics\n\nWe discuss
a local to global profinite principle for being a\ncommutator in some ari
thmetic groups. Specifically we show that\n$SL_2(Z)$ satisfies such a prin
ciple\, while it can fail with\ninfinitely many exceptions for $SL_2(Z[1/p
])$. The source of the\nfailure is a reciprocity obstruction to the integr
al Hasse Principle\nfor cubic Markoff surfaces. Joint work with Amit Ghosh
and Chen Meiri.\n
DTSTART:20211208T160000Z
DTEND:20211208T171500Z
LAST-MODIFIED:20211208T131622Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Arithmetic Groups
URL:https://www.ias.edu/math/events/arithmetic-groups-8
END:VEVENT
BEGIN:VEVENT
UID:31363537-3463-4732-a463-313062343761
DTSTAMP:20220123T174848Z
CREATED:20211124T161213Z
DESCRIPTION:Topic: Modelling stellar cluster populations alongside their ho
st galaxies in a cosmic environment: the EMP-Pathfinder simulations\n\nSpe
akers: Marta Reina-Campos\n\nAffiliation: McMaster University\n\nStellar c
luster populations in the Local Universe show a wide range of\nproperties\
, suggesting that these objects form via a unique physical\nchannel\, and
that their demographics are shaped by their formation and\nevolution in an
evolving cosmic environment. This scenario links the\ncurrent cluster for
mation sites in the disks of the Antennae galaxies\nto the old GC populati
on that mostly populates the halo of the Milky\nWay\, implying that their
evolution is tightly coupled to that of their\nhost galaxy. To understand
the observed cluster populations\, it has\nbecome necessary to use numeric
al simulations that can model the\nco-formation and evolution of stellar c
lusters alongside their\ngalactic environments over a Hubble time. In this
talk\, I will explore\ndifferent numerical approximations that allow us t
o model the\nco-formation and evolution of star clusters and their host ga
laxies. I\nwill introduce the EMP-Pathfinder simulations (Reina-Campos to
be\nsubm.)\, a suite of cosmological zoom-in simulations of Milky Way-mass
\ngalaxies with sub-grid stellar cluster populations. As a key\ningredient
in these simulations\, we include a description of the\nmulti-phase natur
e of the ISM\, which enables studies of how the\npresence of a cold\, mole
cular ISM affects star cluster formation and\nevolution. I will show that
GC populations emerge self-consistently in\nthis scenario after 10 Gyr of
co-evolution with their host galaxy\, and\nI will end briefly discussing h
ow cluster demographics can be used as\ndiagnostic tools for baryonic mode
ls in upcoming galaxy formation\nsimulations that also include a descripti
on of the cold ISM.\n
DTSTART:20211208T160000Z
DTEND:20211208T170000Z
LAST-MODIFIED:20211203T140847Z
LOCATION:Virtual Meeting
SUMMARY:Princeton University Star Formation/ISM Rendezvous (SFIR)
URL:https://www.ias.edu/sns/events/princeton-university-star-formationism-r
endezvous-sfir-18
END:VEVENT
BEGIN:VEVENT
UID:38396339-3232-4163-b830-343437306364
DTSTAMP:20220123T174848Z
CREATED:20210923T160514Z
DESCRIPTION:Topic: Rigidity and flexibility of isometric embeddings in C^{1
\,\alpha} II\n\nSpeakers: Camillo De Lellis\n\nAffiliation: IBM von Neuman
n Professor\; School of Mathematics\n\n
DTSTART:20211208T190000Z
DTEND:20211208T210000Z
LAST-MODIFIED:20211016T020941Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Lectures in Analysis and Geometry
URL:https://www.ias.edu/math/events/lectures-analysis-and-geometry-8
END:VEVENT
BEGIN:VEVENT
UID:66393663-6663-4465-b532-353865346133
DTSTAMP:20220123T174848Z
CREATED:20210930T193300Z
DESCRIPTION:Topic: Can one hear the winding number?\n\nSpeakers: László Szé
kelyhidi\n\nAffiliation: University of Leipzig\; Distinguished Visiting Pr
ofessor\, School of Mathematics\n\n
DTSTART:20211208T230000Z
DTEND:20211209T010000Z
LAST-MODIFIED:20211203T222916Z
LOCATION:Birch Garden\, Simons Hall
SUMMARY:Mathematical Conversations
URL:https://www.ias.edu/math/events/mathematical-conversations-222
END:VEVENT
BEGIN:VEVENT
UID:32363431-3565-4239-a539-373061653361
DTSTAMP:20220123T174848Z
CREATED:20211104T173919Z
DESCRIPTION:
DTSTART:20211209T150000Z
DTEND:20211209T170000Z
LAST-MODIFIED:20211104T173927Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Floer Learning Seminar
URL:https://www.ias.edu/math/events/floer-learning-seminar-3
END:VEVENT
BEGIN:VEVENT
UID:32376334-3730-4439-b164-663538326262
DTSTAMP:20220123T174848Z
CREATED:20210903T184443Z
DESCRIPTION:Topic: 3D magnetic field observations associated with filamenta
ry molecular clouds\n\nSpeakers: Mehrnoosh Tahani\n\nAffiliation: Dominion
Radio Astrophysical Observatory (DRAO)\n\nIn this talk\, I will briefly d
iscuss our work on understanding the 3D\nmorphology of magnetic fields ass
ociated with molecular clouds. To\nstudy the 3D magnetic fields\, we first
proposed and demonstrated a new\ntechnique to determine the line-of-sight
strength and direction of\nmagnetic fields associated with molecular clou
ds based on Faraday\nrotation measurements. We applied this method to four
relatively\nnearby filamentary molecular clouds. For three of these cloud
s\, we\nfound that the line-of-sight magnetic field reverses across them (
from\none side of the cloud to the other along the short axis of the\nfila
ment).\n\nWe then used these line-of-sight and Planck’s plane-of-sky magne
tic\nfield observations along with models and statistical tools to study\n
the 3D morphology of the magnetic field associated with the Orion A\ncloud
. Additionally\, we used Galactic magnetic field models and\nvelocity inf
ormation to reconstruct the overall (and coherent)\nmagnetic field morphol
ogies of the Perseus and Orion A clouds\,\nincluding their signed directio
n (without 180 deg ambiguity). In\nthis talk I will discuss these techniqu
es and our results.\n\nREGISTRATION FORM\n[https://forms.ias.edu/form/sns-
astrophysics-seminar]\n
DTSTART:20211209T160000Z
DTEND:20211209T170000Z
LAST-MODIFIED:20210922T151509Z
LOCATION:Bloomberg Lecture Hall and Zoom
SUMMARY:Institute for Advanced Study Astrophysics Seminar
URL:https://www.ias.edu/sns/events/institute-advanced-study-astrophysics-se
minar-26
END:VEVENT
BEGIN:VEVENT
UID:37373763-3830-4466-b263-383837326465
DTSTAMP:20220123T174848Z
CREATED:20210317T191930Z
DESCRIPTION:Topic: Ash'arism Encounters Avicennism: Sayf Al-Dīn Al-Āmidī (d
. 631/1233) on Creation\n\nThe Institute for Advanced Study\, in partnersh
ip with Gorgias Press\,\nis delighted to announce a new online lecture pro
gram\, The Author's\nVoice\n[https://www.ias.edu/sites/default/files/The%2
0Author%27s%20Voice%202021%20Program.pdf].\n\nThe fourth and final lecture
will be given by LAURA HASSAN\, Associate\nFaculty Member\, Faculty of Or
iental Studies\, University of Oxford. \n\nCompeting theories about the or
igins of the cosmos have always\nentailed distinctive and often antithetic
al conceptions of who\, or\nwhat\, caused it. Sayf al-Dīn al-Āmidī develop
ed his doctrine of\ncreation at a particularly poignant moment in Islamic
intellectual\nhistory\, in which the traditions of theology (kalām) and He
llenised\nphilosophy (falsafa) were forced into an encounter which would\n
permanently alter the theological landscape. In this talk\, taking\nimpetu
s from the case of al-Āmidī\, I consider the options available\nfor intell
ectuals who\, like him\, encounter a system of thought which\nis both rati
onally and theologically compelling\, but which also\nthreatens to undermi
ne entrenched convictions. \n\nThis is a free Zoom lecture. REGISTER IN AD
VANCE HERE\n[https://theias.zoom.us/meeting/register/tZcqdeuoqD4jH9yIPZT82
QtKrdqmlYN-7Cb6 ]. After\nregistering\, you will receive a confirmation em
ail containing\ninformation about joining the event.\n\nHosted by Sabine S
chmidtke (School of Historical Studies\, IAS) and\nGeorge A. Kiraz (School
of Historical Studies\, IAS and\nEditor-in-Chief\, Gorgias Press) in coop
eration with Angelos Chaniotis\n(School of Historical Studies\, IAS).\n\nF
or more information\, please contact ds@ias.edu.\n
DTSTART:20211209T170000Z
DTEND:20211209T170000Z
LAST-MODIFIED:20211008T131427Z
LOCATION:Online
SUMMARY:The Author's Voice
URL:https://www.ias.edu/hs/events/authors-voice-2
END:VEVENT
BEGIN:VEVENT
UID:62653965-3533-4161-b463-623763386133
DTSTAMP:20220123T174848Z
CREATED:20210923T163444Z
DESCRIPTION:Topic: The Ruelle invariant and convexity I\n\nSpeakers: Julian
Chaidez\n\nAffiliation: Princeton University\; Visitor\, School of Mathem
atics\n\nIn this talk\, I will define the Ruelle invariant of a measure\np
reserving flow equipped with a symplectic cocycle. This is a natural\ndyna
mical quantity that measures a spacetime averaged rotation of the\ncocycle
along the flow. I will then discuss the examples that show up\nin Hamilto
nian and Reeb dynamics. Finally\, for the Reeb flow on a\nconvex hypersurf
ace\, I will derive estimates for the Ruelle invariant\nin terms of the to
tal mean curvature of the convex hypersurface.\n
DTSTART:20211209T190000Z
DTEND:20211209T210000Z
LAST-MODIFIED:20211020T225344Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Discussions in Analysis and Geometry
URL:https://www.ias.edu/math/events/discussions-analysis-and-geometry-8
END:VEVENT
BEGIN:VEVENT
UID:31626136-3365-4637-b530-646532306562
DTSTAMP:20220123T174848Z
CREATED:20210908T214301Z
DESCRIPTION:Topic: The second moment of the size of the 2-Selmer group of e
lliptic curves\n\nSpeakers: Ashvin Swaminathan\n\nAffiliation: Princeton U
niversity\n\nWe introduce a new orbit parametrization for square roots of
the class\nof the inverse different in rings cut out by binary forms. This
\nparametrization has many applications of interest in arithmetic\nstatist
ics\; for example\, we use it to prove that the second moment of\nthe size
of the 2-Selmer group of elliptic curves is at most 15\,\nconfirming a co
njecture of Poonen and Rains.\n
DTSTART:20211209T213000Z
DTEND:20211209T223000Z
LAST-MODIFIED:20211206T201826Z
LOCATION:Fine Hall 214\, Princeton University and Remote Access
SUMMARY:Joint IAS/Princeton University Number Theory Seminar
URL:https://www.ias.edu/math/events/joint-iasprinceton-university-number-th
eory-seminar-465
END:VEVENT
BEGIN:VEVENT
UID:37373534-3638-4730-b563-323730393133
DTSTAMP:20220123T174848Z
CREATED:20210916T215536Z
DESCRIPTION:Topic: GIT quotients and Symplectic data analysis\n\nSpeakers:
Urs Frauenfelder\n\nAffiliation: Augsburg University\n\nThis is joint work
with Agustin Moreno and Dayung Koh. The restricted\nthree-body problem is
invariant under various antisymplectic\ninvolutions. These real structure
s give rise to the notion of\nsymmetric periodic orbits which simultaneous
ly have a closed string\ninterpretation namely as a periodic orbit as well
as an open string\ninterpretation as Hamiltonian chords. This makes the b
ifurcation\nanalysis of symmetric periodic orbits very intriguing since un
der\nbifurcations two local Floer homologies are invariant\, the periodic
\none as well as the Lagrangian one. In this talk we explain how methods\n
from symmetric space theory can help to extract efficiently datas from\nre
duced monodromy matrices of periodic orbits helping to analyse the\npossib
le bifurcation patterns.\n
DTSTART:20211210T141500Z
DTEND:20211210T154500Z
LAST-MODIFIED:20211210T192234Z
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-66
END:VEVENT
BEGIN:VEVENT
UID:66323533-3936-4265-a263-323262643336
DTSTAMP:20220123T174848Z
CREATED:20210922T143705Z
DESCRIPTION:Topic: Modeling dissipative effects in general-relativistic pla
smas and beyond\n\nSpeakers: Elias Most\n\nAffiliation: Institute of Advan
ced Studies\n\nRelativistic plasmas are central to the study of black hole
accretion\,\njet physics\, neutron star mergers\, and compact object magn
etospheres.\nGoing beyond common approaches used in the literature\, I wil
l describe\na fully relativistic covariant 14-moment based two-fluid syste
m\nappropriate for the study of electron-ion or electron-positron\nplasmas
. This generalized Israel-Stewart-like system of equations of\nmotion is o
btained directly from the relativistic Boltzmann-Vlasov\nequation. Crucial
ly\, this new formulation can account for non-ideal\neffects\, such as ani
sotropic pressures and heat fluxes. Specializing\nto the case of non-resis
tive plasmas\, I will present a novel numerical\nscheme capable of solving
these equations in the strongly and weakly\ncollisional limits.\n\nBridgi
ng the gap between formulations of general-relativistic plasmas\nand dynam
ical gravity\, I will then present a novel reformulation of\nthe Einstein
field equations. By exploiting the Palatini formalism\, I\nwill show how t
hese equations can be recast into a form resembling\nnon-linear electrodyn
amics in a medium. Such a formulation might\npermit the use of advanced nu
merical methods\, such as constraint\ntransport\, in simulations of vacuum
spacetimes.\n
DTSTART:20211210T173000Z
DTEND:20211210T190000Z
LAST-MODIFIED:20211202T140857Z
LOCATION:Dome Room\, Peyton Hall or Zoom
SUMMARY:Princeton University Astroplasmas Seminar
URL:https://www.ias.edu/sns/events/princeton-university-astroplasmas-semina
r-20
END:VEVENT
BEGIN:VEVENT
UID:37363538-3835-4932-a539-663930626435
DTSTAMP:20220123T174848Z
CREATED:20210720T150521Z
DESCRIPTION:Topic: No Seminar\n\n
DTSTART:20211213T161500Z
DTEND:20211213T171500Z
LAST-MODIFIED:20211019T140614Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Computer Science/Discrete Mathematics Seminar I
URL:https://www.ias.edu/math/events/computer-sciencediscrete-mathematics-se
minar-i-496
END:VEVENT
BEGIN:VEVENT
UID:66363735-3738-4333-b635-316563353964
DTSTAMP:20220123T174848Z
CREATED:20210922T131806Z
DESCRIPTION:Topic: General Discussion\n\n
DTSTART:20211213T170000Z
DTEND:20211213T180000Z
LAST-MODIFIED:20211210T193509Z
LOCATION:Virtual Meeting
SUMMARY:Princeton University Extrasolar Planet Discussion Group
URL:https://www.ias.edu/sns/events/princeton-university-extrasolar-planet-d
iscussion-group-43
END:VEVENT
BEGIN:VEVENT
UID:61333633-3033-4434-b861-656436363063
DTSTAMP:20220123T174848Z
CREATED:20210916T220202Z
DESCRIPTION:Topic: A new random model for the Euler and Navier-Stokes equa
tions and related equations\n\nSpeakers: Jonathan Mattingly\n\nAffiliation
: Duke University\; Member\, School of Mathematics\n\nI will introduce a n
ew model of randomly agitated equations. I will\nfocus on the finite finit
e dimensional approximations (analogous to\nGalerkin approximations) and t
he two-dimensional setting. I will\ndiscuss number of properties of the mo
dels including ergodicity and\npositive Lyapunov exponents. The discussion
will also include some\nmotivating computational experiments. This is wor
k in progress with\nOmar Melikechi and Andrea Agazzi who are both at Duke
\n
DTSTART:20211213T190000Z
DTEND:20211213T200000Z
LAST-MODIFIED:20211213T133128Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Members’ Colloquium
URL:https://www.ias.edu/math/events/members-colloquium-18
END:VEVENT
BEGIN:VEVENT
UID:65346536-3533-4631-a232-383230393635
DTSTAMP:20220123T174848Z
CREATED:20210928T185723Z
DESCRIPTION:Topic: Localization and flexibilization in symplectic geometry
\n\nSpeakers: Oleg Lazarev\n\nAffiliation: University of Massachusetts\, B
oston\n\nLocalization is an important construction in algebra and topology
that\nallows one to study global phenomena a single prime at a time.\nFle
xibilization is an operation in symplectic topology introduced by\nCielieb
ak and Eliashberg that makes any two symplectic manifolds that\nare diffeo
morphic (plus a bit of tangent bundle data) become\nsymplectomorphic. In t
his talk\, I will explain that it is fruitful to\nview flexibilization as
a localization (at the 'prime' zero). I will\nalso give examples of new lo
calization functors of symplectic\nmanifolds (up to stabilization and subc
riticals)\, which interpolate\nbetween flexible and rigid symplectic geome
try and can be viewed as\nsymplectic analogs of topological localization o
f Sullivan\, Quillen\,\nand Bousfield.\n
DTSTART:20211213T210000Z
DTEND:20211213T223000Z
LAST-MODIFIED:20211213T142438Z
LOCATION:Simonyi Hall 101
SUMMARY:Joint IAS/Princeton University Symplectic Geometry Seminar
URL:https://www.ias.edu/math/events/joint-iasprinceton-university-symplecti
c-geometry-seminar-174
END:VEVENT
BEGIN:VEVENT
UID:61623530-3137-4934-b766-646238366262
DTSTAMP:20220123T174848Z
CREATED:20210720T151323Z
DESCRIPTION:Topic: An Introduction to Lifted Expander Graphs\n\nSpeakers: F
ernando Granha Jeronimo\n\nAffiliation: Member\, School of Mathematics\n\n
Expander graphs are sparse and yet well-connected graphs. Several\napplica
tions in theoretical computer science require explicit\nconstructions of e
xpander graphs\, sometimes even with additional\nstructure. One approach t
o their construction is to start from a small\nexpander and apply (once or
several times) a well-known lifting\noperation to obtain a larger expande
r. In this talk\, we will describe\nan explicit (near-Ramanujan) construct
ion of lifted expander graphs\npossessing an additional large symmetry str
ucture. The analysis boils\ndown to a more careful counting argument build
ing on the incredible\nprogress seen in this kind of construction. The add
itional symmetry\nstructure of our lifted expanders has applications to co
ding theory.\n\nThis is based on joint work with Tushant Mittal\, Ryan O'D
onnell\, Pedro\nParedes and Madhur Tulsiani.\n
DTSTART:20211214T153000Z
DTEND:20211214T173000Z
LAST-MODIFIED:20211214T133825Z
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-492
END:VEVENT
BEGIN:VEVENT
UID:64306565-3765-4438-a433-326666616438
DTSTAMP:20220123T174848Z
CREATED:20210928T144004Z
DESCRIPTION:Topic: Floer homology of Hamiltonians supported on subsets\n\nS
peakers: Shira Tanny\n\nAffiliation: Member\, School of Mathematics\n\nFlo
er homology is a fundamental construction relating dynamical\nproperties o
f Hamiltonian flows on symplectic manifolds to the\ntopology of the manifo
ld. Although this construction is global in\nnature\, when the Hamiltonian
flow is supported on a subset one would\nlike to 'localize' this construc
tion\, or at least some of its\nconsequences. I'll discuss several results
in this direction. All\nsymplectic preliminaries will be explained.\n
DTSTART:20211214T190000Z
DTEND:20211214T200000Z
LAST-MODIFIED:20211214T134019Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Seminar in Analysis and Geometry
URL:https://www.ias.edu/math/events/seminar-analysis-and-geometry-8
END:VEVENT
BEGIN:VEVENT
UID:65633632-3664-4733-b965-396639663664
DTSTAMP:20220123T174848Z
CREATED:20210920T170736Z
DESCRIPTION:Topic: The Fiery Fate of Exoplanets\n\nSpeakers: Joleen Carlber
g\n\nAffiliation: STIS Branch Manager at the Space Telescope Science Insti
tute (STScI)\n\nWhat happens to planets when their stars begin to die? For
many of the\nplanets we’ve discovered outside our Solar System\, the answ
er is a\ntrip into the fiery depths of their host star\, particularly when
that\nstar becomes a red giant. What happens when a bloated star devours
a\nJupiter is quite different from what happens to a star that devours a\n
Mercury! This engulfment should leave behind some easy-to-identify\nclues\
, but only if we know enough about the dying star. In this talk\,\nDr. Car
lberg will share her investigations into what we know (or think\nwe know)
about the physical changes a star undergoes during its\nlifetime and how w
e can use this knowledge to search for evidence of\nplanetary engulfment.
One of her research goals is to disentangle the\nseveral processes that af
fect a red giant’s lithium abundance to\nidentify stars for which “lithium
enriched” translates into “ate\na planet.”\n
DTSTART:20211215T003000Z
DTEND:20211215T023000Z
LAST-MODIFIED:20211210T194022Z
LOCATION:Virtual Meeting
SUMMARY:Amateur Astronomers Association of Princeton (AAAP) Monthly Meeting
URL:https://www.ias.edu/sns/events/amateur-astronomers-association-princeto
n-aaap-monthly-meeting-11
END:VEVENT
BEGIN:VEVENT
UID:66396266-6537-4562-a263-356235356138
DTSTAMP:20220123T174848Z
CREATED:20211103T164357Z
DESCRIPTION:Topic: The dynamics of Aut(Fn) actions on group presentations a
nd representations\n\nSpeakers: Alexander Lubotzky\n\nAffiliation: Hebrew
University of Jerusalem\; Visiting Professor\, School of Mathematics\n\nSe
veral different areas of group theory\, topology\, and geometry have\nled
to the study of the action of $Aut(Fn)$—the automorphism group\nof the fre
e group on $n$ generators—on $Hom(Fn\, G)$ when $G$ is\neither finite\, co
mpact or a simple Lie group. We will describe some of\nthese. This time ma
inly the case of $G$ being a finite group.\n
DTSTART:20211215T150000Z
DTEND:20211215T155000Z
LAST-MODIFIED:20211215T133412Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Character Varieties\, Dynamics and Arithmetic
URL:https://www.ias.edu/math/events/character-varieties-dynamics-and-arithm
etic-4
END:VEVENT
BEGIN:VEVENT
UID:32613331-3166-4635-b839-653165633337
DTSTAMP:20220123T174848Z
CREATED:20210917T203552Z
DESCRIPTION:Topic: Commutators in SL_2 and Markoff Surfaces\n\nSpeakers: Ch
en Meiri\n\nAffiliation: Technion\n\nWe discuss a local to global profinit
e principle for being a\ncommutator in some arithmetic groups. Specificall
y we show that\n$SL_2(Z)$ satisfies such a principle\, while it can fail w
ith\ninfinitely many exceptions for $SL_2(Z[1/p])$. The source of the\nfai
lure is a reciprocity obstruction to the integral Hasse Principle\nfor cub
ic Markoff surfaces. Joint work with Amit Ghosh and Peter\nSarnak.\n
DTSTART:20211215T160000Z
DTEND:20211215T171500Z
LAST-MODIFIED:20211215T133641Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Arithmetic Groups
URL:https://www.ias.edu/math/events/arithmetic-groups-9
END:VEVENT
BEGIN:VEVENT
UID:65363962-3433-4633-b934-333834363263
DTSTAMP:20220123T174848Z
CREATED:20211124T161326Z
DESCRIPTION:Topic: Hydrodynamic simulations of multiple stellar populations
in globular clusters\n\nSpeakers: Elena Lacchin\n\nAffiliation: INAF\n\nT
he origin of multiple stellar populations (MPs) in globular clusters\n(GCs
) is one of the most puzzling issues of stellar astrophysics.\nSeveral att
empts to understand their formation have been done both\nfrom observationa
l and theoretical studies\, but\, so far\, a clear\npicture is still lacki
ng. By means of 3D hydrodynamic simulations\, we\nexplore the very early s
tages of GC formation studying the interplay\nbetween various physical ing
redients like stellar feedback\, gravity\nand cluster rotation on the form
ation of MPs. In this talk\, I will\nmainly focus on Type Ia supernova (SN
) effects both on star formation\nand on iron and helium abundances\; I wi
ll further analyze the role of\nvarious parameters in regulating the effic
iency of Type Ia SN\nfeedback. Finally\, I’ll discuss possible paths for t
he formation of\nType II GCs\, an anomalous sub-category of GCs known to e
xhibit an\ninternal iron spread.\n
DTSTART:20211215T160000Z
DTEND:20211215T170000Z
LAST-MODIFIED:20211210T194121Z
LOCATION:Virtual Meeting
SUMMARY:Princeton University Star Formation/ISM Rendezvous (SFIR)
URL:https://www.ias.edu/sns/events/princeton-university-star-formationism-r
endezvous-sfir-19
END:VEVENT
BEGIN:VEVENT
UID:32376563-6266-4534-b136-366562626262
DTSTAMP:20220123T174848Z
CREATED:20211209T193358Z
DESCRIPTION:Topic: Can you hear the will of the people in the vote? The mat
hematics and policy of quantifying gerrymandering\n\nSpeakers: Jonathan Ma
ttingly\n\nAffiliation: Duke University\; Member\, School of Mathematics\n
\nThe US political system is built on representatives chosen by\ngeographi
cally localized regions. This presents the government with\nthe problem of
designing these districts. Every ten years\, the US\ncensus counts the po
pulation and new political districts must be\ndrawn. The practice of harne
ssing this administrative process for\npartisan political gain is often re
ferred to as gerrymandering.\n\nHow does one identify and understand gerry
mandering? Can we really\nrecognize gerrymandering when we see it? If one
party wins over 50% of\nthe vote\, is it fair that it wins less than 50% o
f the seats? What do\nwe mean by fair? How can math help illuminate these
questions?\n\nHow does the geopolitical geometry of the state (where which
groups\nlive and the shape of the the state) inform these answers ?\n\nTh
e use of a collection of “neutral”\, computer-generated\,\nredistricting m
aps is quickly becoming the standard for identifying\nGerrymandering and u
nderstanding the ways it is achieved. Several\nteams have used these ideas
in advising governors and legislatures as\nwell as in several court proce
edings. The Duke group has been involved\nin several cases that have lead
to the redrawing of all of the federal\nand state-level redistricting maps
for the 2020 elections. We are\ncurrently involved in discussions around
the 2021 redistricting cycle\nin a number of states.\n\nFor me\, these que
stions began with an undergraduate research program\nproject in 2013 and h
as led me to testify twice in two cases: Common\nCause v. Rucho (that went
to the US Supreme Court) and Common Cause v.\nLewis. This work has partia
lly resulted in the redrawing of the NC\nState Legislative district maps a
nd NC congressional maps. The\nresulting new maps will be used in our upco
ming 2020 elections.\n\nIn the remedy phase of North Carolina v. Covington
\, Greg Herschlog\nfrom the Duke group address the question if attempts to
satisfy the\nVRA alone explained the observed level political packing and
cracking.\n\nThis is a story of interaction between lawyer\, mathematicia
ns and\npolicy advocates. The legal discussion has been increasingly infor
med\nby the mathematical framework. And the mathematics has been pushed to
\nbetter include to the policy. The back and forth has been important to\n
find ways to effectively inform the policy makers and courts to the\ninsit
e the analyses provide. The problem of understanding\ngerrymandering has a
lso prompted the development of a number of new\ncomputational algorithms
which come with new mathematical questions.\n\nThe next round of redistric
ting analysis will necessarily need to be\nmore refined and nuanced. There
is also the opportunity to be less\nreactive. There are opportunities to
try to influence the process by\nwhich new maps are drawn before turning t
o the courts. There is also\nthe possibility to direct the conversation by
showing the effect more\nfully considering factors such as communities of
interest\, incumbency\nor proposed procedural elements of laws.\n\nThis p
resentation reflects joint work Gregory Herschlag and a number\nof other r
esearchers including Math\, Policy and Law Faculty and many\nundergraduate
s\, graduate students\, and a few high school students.\n
DTSTART:20211215T170000Z
DTEND:20211215T180000Z
LAST-MODIFIED:20211217T210543Z
LOCATION:Dilworth Room
SUMMARY:Special Lecture
URL:https://www.ias.edu/math/events/special-lecture
END:VEVENT
BEGIN:VEVENT
UID:31363164-3830-4161-b130-333831653564
DTSTAMP:20220123T174848Z
CREATED:20210923T160527Z
DESCRIPTION:Topic: The Ruelle invariant and convexity II\n\nSpeakers: Julia
n Chaidez\n\nAffiliation: Princeton University\; Visitor\, School of Mathe
matics\n\nIn this talk\, I will explain how the Ruelle invariant of a\nsym
plectomorphism and the Ruelle invariant of a Reeb flow are related\nvia th
e open book construction. As an application\, I will construct\nexamples o
f Reeb flows on the sphere that are dynamically convex but\nnot convex.\n
DTSTART:20211215T190000Z
DTEND:20211215T210000Z
LAST-MODIFIED:20211129T160842Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Lectures in Analysis and Geometry
URL:https://www.ias.edu/math/events/lectures-analysis-and-geometry-9
END:VEVENT
BEGIN:VEVENT
UID:34626235-3835-4461-a638-613234613866
DTSTAMP:20220123T174848Z
CREATED:20210930T193313Z
DESCRIPTION:Topic: No seminar\n\n
DTSTART:20211215T230000Z
DTEND:20211216T010000Z
LAST-MODIFIED:20211210T023416Z
LOCATION:Birch Garden\, Simons Hall
SUMMARY:Mathematical Conversations
URL:https://www.ias.edu/math/events/mathematical-conversations-223
END:VEVENT
BEGIN:VEVENT
UID:31336237-6365-4237-a137-366135666561
DTSTAMP:20220123T174848Z
CREATED:20211104T173933Z
DESCRIPTION:
DTSTART:20211216T150000Z
DTEND:20211216T170000Z
LAST-MODIFIED:20211104T173940Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Floer Learning Seminar
URL:https://www.ias.edu/math/events/floer-learning-seminar-4
END:VEVENT
BEGIN:VEVENT
UID:64643733-3833-4030-a434-646138353730
DTSTAMP:20220123T174848Z
CREATED:20210903T184536Z
DESCRIPTION:Topic: Black hole catalysis of false vacuum decay: The semiclas
sical decay rate and importance of greybody factors\n\nSpeakers: Sergey Si
biryakov\n\nAffiliation: Perimeter Institute\n\nIt was suggested over thir
ty years ago that microscopic black holes\ncan exponentially enhance the d
ecay rate of a metastable false vacuum.\nThe interest in this phenomenon h
as revived recently due to its\npossible phenomenological relevance for th
e physics of the early\nuniverse. Upon reviewing the motivation\, I will d
iscuss challenges\nraised by the attempts to describe black hole catalysis
of vacuum\ndecay using standard semiclassical methods. I will then presen
t a\ngeneralized method applicable to the case of a realistic black hole\n
which is not in equilibrium with its environment. The method will be\nillu
strated on an example of a two-dimensional toy model\, with\nemphasis on t
he role played by the black hole greybody factors. The\nproposed formalism
is not limited to black holes and applies to\ntunneling in out-of-equilib
rium systems in general.\n\nREGISTRATION FORM\n[https://forms.ias.edu/form
/sns-astrophysics-seminar]\n
DTSTART:20211216T160000Z
DTEND:20211216T170000Z
LAST-MODIFIED:20211210T194228Z
LOCATION:Bloomberg Lecture Hall and Zoom
SUMMARY:Institute for Advanced Study Astrophysics Seminar
URL:https://www.ias.edu/sns/events/institute-advanced-study-astrophysics-se
minar-27
END:VEVENT
BEGIN:VEVENT
UID:32313836-3831-4438-b462-636162323736
DTSTAMP:20220123T174848Z
CREATED:20210923T163458Z
DESCRIPTION:Topic: No seminar\n\n
DTSTART:20211216T190000Z
DTEND:20211216T210000Z
LAST-MODIFIED:20211129T160921Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Discussions in Analysis and Geometry
URL:https://www.ias.edu/math/events/discussions-analysis-and-geometry-9
END:VEVENT
BEGIN:VEVENT
UID:31663934-3838-4463-b537-376332363965
DTSTAMP:20220123T174848Z
CREATED:20210908T214314Z
DESCRIPTION:Topic: No seminar\n\n
DTSTART:20211216T213000Z
DTEND:20211216T223000Z
LAST-MODIFIED:20211209T172001Z
LOCATION:
SUMMARY:Joint IAS/Princeton University Number Theory Seminar
URL:https://www.ias.edu/math/events/joint-iasprinceton-university-number-th
eory-seminar-466
END:VEVENT
BEGIN:VEVENT
UID:38636537-3564-4634-b738-396232616563
DTSTAMP:20220123T174848Z
CREATED:20210916T215550Z
DESCRIPTION:Topic: Three 20 minute research talks\n\nSpeakers: Wenyuan Li\,
Jakob Hedicke\, Johan Asplund\n\nAffiliation: Northwestern University\; R
uhr-Universität Bochum\; Uppsala University\n\nWENYUAN LI (NORTHWESTERN)\,
_Estimating Reeb chords using microlocal\nsheaf theory_\n\nWe show that\,
for closed Legendrians in 1-jet bundles\, when there is a\nsheaf with sin
gular support on the Legendrian\, then (1) its self Reeb\nchords are bound
ed from below by half the sum of Betti numbers\, and\n(2) the Reeb chords
between itself and its Hamiltonian push off is\nbounded from below by Bett
i numbers when the $C^0$-norm of the\nHamiltonian is small. I will show ho
w to visualize Reeb\nchords/Lagrangian intersections in sheaf theory\, and
then explain the\nduality exact triangle and the persistence structure us
ed in the\nproof. If time permits\, I will state a conjecture on the relat
ive\nCalabi-Yau structure that arises from the duality exact triangle.\n\n
JAKOB HEDICKE (BOCHUM)\, _Lorentzian distance functions on the group of\nc
ontactomorphisms_\n\nThe notion of positive (non-negative) contact isotopy
\, defined by\nEliashberg and Polterovich\, leads to two relations on the
group of\ncontactomorphisms. These relations resemble the causal relations
of a\nLorentzian manifold. In this talk we will introduce a class of\nLor
entzian distance functions on the group of contactomorphisms\, that\nare c
ompatible with these relations. The Lorentzian distance functions\nturn ou
t to be continuous with respect to the Hofer-norm of a\ncontactomorphism d
efined by Shelukhin.\n\nJOHAN ASPLUND (UPPSALA)\, _Simplicial descent for
Chekanov-Eliashberg\ndg-algebras_\n\nIn this talk we introduce a type of s
urgery decomposition of Weinstein\nmanifolds we call simplicial decomposit
ions. We will discuss the\nresult that the Chekanov-Eliashberg dg-algebra
of the attaching\nspheres of a Weinstein manifold satisfies a descent (cos
heaf) property\nwith respect to a simplicial decomposition. Simplicial dec
ompositions\ngeneralize the notion of Weinstein connected sum and there is
in fact\na one-to-one correspondence (up to Weinstein homotopy) between\n
simplicial decompositions and so-called good sectorial covers. The\nmotiva
tion behind these results is the sectorial descent result for\nwrapped Fuk
aya categories by Ganatra-Pardon-Shende.\n
DTSTART:20211217T141500Z
DTEND:20211217T154500Z
LAST-MODIFIED:20211217T132309Z
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-67
END:VEVENT
BEGIN:VEVENT
UID:62386230-3935-4234-b936-373233326435
DTSTAMP:20220123T174848Z
CREATED:20200110T181356Z
DESCRIPTION:
DTSTART:20211217T230000Z
DTEND:20211217T230000Z
LAST-MODIFIED:20210104T025731Z
LOCATION:
SUMMARY:IAS School of Mathematics Term I Ends
URL:https://www.ias.edu/math/events/ias-school-mathematics-term-i-ends-0
END:VEVENT
BEGIN:VEVENT
UID:32313166-6538-4438-a634-666632376130
DTSTAMP:20220123T174848Z
CREATED:20210922T131827Z
DESCRIPTION:Topic: TBA\n\n
DTSTART:20211220T170000Z
DTEND:20211220T180000Z
LAST-MODIFIED:20210922T131841Z
LOCATION:Virtual Meeting
SUMMARY:Princeton University Extrasolar Planet Discussion Group
URL:https://www.ias.edu/sns/events/princeton-university-extrasolar-planet-d
iscussion-group-44
END:VEVENT
BEGIN:VEVENT
UID:35306137-6234-4239-b731-316266646436
DTSTAMP:20220123T174848Z
CREATED:20200110T181450Z
DESCRIPTION:
DTSTART:20220110T140000Z
DTEND:20220110T140000Z
LAST-MODIFIED:20210104T025827Z
LOCATION:
SUMMARY:IAS School of Mathematics Term II Begins
URL:https://www.ias.edu/math/events/ias-school-mathematics-term-ii-begins-0
END:VEVENT
BEGIN:VEVENT
UID:30363963-6637-4465-a133-363239656264
DTSTAMP:20220123T174848Z
CREATED:20211209T212346Z
DESCRIPTION:Topic: No seminar\n\n
DTSTART:20220110T190000Z
DTEND:20220110T200000Z
LAST-MODIFIED:20211215T193749Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Members’ Colloquium
URL:https://www.ias.edu/math/events/members-colloquium-19
END:VEVENT
BEGIN:VEVENT
UID:64636233-3635-4935-b232-656633663930
DTSTAMP:20220123T174848Z
CREATED:20211210T001534Z
DESCRIPTION:Topic: No seminar\n\n
DTSTART:20220110T210000Z
DTEND:20220110T223000Z
LAST-MODIFIED:20211210T003041Z
LOCATION:
SUMMARY:Joint IAS/Princeton University Symplectic Geometry Seminar
URL:https://www.ias.edu/math/events/joint-iasprinceton-university-symplecti
c-geometry-seminar-175
END:VEVENT
BEGIN:VEVENT
UID:37646262-3431-4634-b365-623164633433
DTSTAMP:20220123T174848Z
CREATED:20211209T234038Z
DESCRIPTION:Topic: No seminar\n\n
DTSTART:20220111T190000Z
DTEND:20220111T200000Z
LAST-MODIFIED:20220105T155327Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Seminar in Analysis and Geometry
URL:https://www.ias.edu/math/events/seminar-analysis-and-geometry-9
END:VEVENT
BEGIN:VEVENT
UID:37386433-3734-4132-b365-623563376166
DTSTAMP:20220123T174848Z
CREATED:20211209T234338Z
DESCRIPTION:Topic: No seminar\n\n
DTSTART:20220112T160000Z
DTEND:20220112T171500Z
LAST-MODIFIED:20220107T214516Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Arithmetic Groups
URL:https://www.ias.edu/math/events/arithmetic-groups-10
END:VEVENT
BEGIN:VEVENT
UID:37303562-6630-4062-b731-633533353231
DTSTAMP:20220123T174848Z
CREATED:20211209T222527Z
DESCRIPTION:Topic: No seminar\n\n
DTSTART:20220112T190000Z
DTEND:20220112T210000Z
LAST-MODIFIED:20220105T155419Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Lectures in Analysis and Geometry
URL:https://www.ias.edu/math/events/lectures-analysis-and-geometry-10
END:VEVENT
BEGIN:VEVENT
UID:33623533-3961-4936-b138-623865353662
DTSTAMP:20220123T174848Z
CREATED:20220106T154949Z
DESCRIPTION:Topic: No seminar\n\n
DTSTART:20220112T230000Z
DTEND:20220113T010000Z
LAST-MODIFIED:20220106T160307Z
LOCATION:
SUMMARY:Mathematical Conversations
URL:https://www.ias.edu/math/events/mathematical-conversations-224
END:VEVENT
BEGIN:VEVENT
UID:30303961-3164-4938-a337-323862643735
DTSTAMP:20220123T174848Z
CREATED:20211210T194027Z
DESCRIPTION:
DTSTART:20220113T150000Z
DTEND:20220113T170000Z
LAST-MODIFIED:20211210T194122Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Floer Learning Seminar
URL:https://www.ias.edu/math/events/floer-learning-seminar-5
END:VEVENT
BEGIN:VEVENT
UID:39613137-3465-4131-b761-343364346332
DTSTAMP:20220123T174848Z
CREATED:20211209T221223Z
DESCRIPTION:Topic: No seminar\n\n
DTSTART:20220113T190000Z
DTEND:20220113T210000Z
LAST-MODIFIED:20220105T155453Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Discussions in Analysis and Geometry
URL:https://www.ias.edu/math/events/discussions-analysis-and-geometry-10
END:VEVENT
BEGIN:VEVENT
UID:35336165-6130-4365-b563-373339336533
DTSTAMP:20220123T174848Z
CREATED:20211209T215820Z
DESCRIPTION:Topic: No seminar\n\n
DTSTART:20220113T213000Z
DTEND:20220113T223000Z
LAST-MODIFIED:20220106T160634Z
LOCATION:
SUMMARY:Joint IAS/Princeton University Number Theory Seminar
URL:https://www.ias.edu/math/events/joint-iasprinceton-university-number-th
eory-seminar-467
END:VEVENT
BEGIN:VEVENT
UID:65323036-3031-4666-b533-653835616335
DTSTAMP:20220123T174848Z
CREATED:20211209T234925Z
DESCRIPTION:Topic: Quantitative Legendrian geometry\n\nSpeakers: Michael Su
llivan\n\nAffiliation: University of Massachusetts\, Amherst\n\nI will dis
cuss some quantitative aspects for Legendrians in a (more or\nless) genera
l contact manifold. These include lower bounds on the\nnumber of Reeb chor
ds between a Legendrian and its contact Hamiltonian\nimage\, the non-degen
eracy of the Chekanov/Hofer/Shelukhin Legendrian\nmetric\, and some 3-dime
nsional non-squeezing results. The main tool is\nthe barcode of a relative
Rabinowitz Floer theory. This is joint work\nwith Georgios Dimitroglou Ri
zell.\n
DTSTART:20220114T141500Z
DTEND:20220114T154500Z
LAST-MODIFIED:20220114T142045Z
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-68
END:VEVENT
BEGIN:VEVENT
UID:61633862-6237-4434-a138-393937633364
DTSTAMP:20220123T174848Z
CREATED:20211209T214434Z
DESCRIPTION:Topic: No seminar: Dr. MLK Jr. Day\n\n
DTSTART:20220117T190000Z
DTEND:20220117T200000Z
LAST-MODIFIED:20211215T193810Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Members’ Colloquium
URL:https://www.ias.edu/math/events/members-colloquium-20
END:VEVENT
BEGIN:VEVENT
UID:34316361-6537-4131-b238-356564393737
DTSTAMP:20220123T174848Z
CREATED:20211210T001820Z
DESCRIPTION:Topic: No seminar: Dr. MLK Jr. Day\n\n
DTSTART:20220117T210000Z
DTEND:20220117T223000Z
LAST-MODIFIED:20220106T162316Z
LOCATION:
SUMMARY:Joint IAS/Princeton University Symplectic Geometry Seminar
URL:https://www.ias.edu/math/events/joint-iasprinceton-university-symplecti
c-geometry-seminar-176
END:VEVENT
BEGIN:VEVENT
UID:30383232-3464-4133-b564-663334666131
DTSTAMP:20220123T174848Z
CREATED:20220111T155805Z
DESCRIPTION:Topic: Norm Minimization\, Invariant Theory\, and the Jacobian
conjecture\n\nSpeakers: William Cole Franks\n\nAffiliation: Massachusetts
Institute of Technology\n\nConsider the action of a group on a finite-dime
nsional vector space.\nGiven some natural conditions on the group\, Hilber
t showed a famous\n'duality' between invariant polynomials and closures of
group orbits.\nNamely\, the orbit closure of a vector is separated from t
he origin if\nand only if some homogeneous invariant polynomial has a nonz
ero value\non the vector. \n\nWe prove a quantitative sharpening of this d
uality\, relating the\nmagnitudes of invariant polynomials evaluated on th
e vector to the\nminimal distance between the orbit closure and the origin
\; the latter\nquantity is known as the capacity in the matrix/operator/te
nsor\nscaling literature. \n\nOur result has interpretations in quantum to
mography\, such as: given\nmany identical copies of a quantum particle\, w
hat's the chance that a\nmeasurement of their overall angular momentum yie
lds zero? Our result\nand its proof are also related to a famous problem i
n algebraic\ngeometry known as the Jacobian conjecture. \n\nThe talk will
assume no special background knowledge - I hope to\nexplain the many notio
ns and connections above. It is based on the\njoint work https://arxiv.org
/abs/2004.14872 with Michael Walter. \n
DTSTART:20220118T153000Z
DTEND:20220118T173000Z
LAST-MODIFIED:20220118T135853Z
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-507
END:VEVENT
BEGIN:VEVENT
UID:64613033-6661-4535-b865-323233623461
DTSTAMP:20220123T174848Z
CREATED:20211209T234300Z
DESCRIPTION:Topic: Non-uniqueness of Leray solutions of the forced Navier-S
tokes equations\n\nSpeakers: Dallas Albritton\n\nAffiliation: Member\, Sch
ool of Mathematics\n\n
DTSTART:20220118T190000Z
DTEND:20220118T200000Z
LAST-MODIFIED:20220118T142850Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Seminar in Analysis and Geometry
URL:https://www.ias.edu/math/events/seminar-analysis-and-geometry-10
END:VEVENT
BEGIN:VEVENT
UID:63356561-3234-4931-a261-636236313161
DTSTAMP:20220123T174848Z
CREATED:20211209T234714Z
DESCRIPTION:Topic: No seminar\n\n
DTSTART:20220119T160000Z
DTEND:20220119T171500Z
LAST-MODIFIED:20220113T192348Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Arithmetic Groups
URL:https://www.ias.edu/math/events/arithmetic-groups-11
END:VEVENT
BEGIN:VEVENT
UID:65623965-6436-4633-b731-623530653834
DTSTAMP:20220123T174848Z
CREATED:20211209T233624Z
DESCRIPTION:Topic: Informal meeting to discuss the topics\n\n
DTSTART:20220119T190000Z
DTEND:20220119T210000Z
LAST-MODIFIED:20220113T165130Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Lectures in Analysis and Geometry
URL:https://www.ias.edu/math/events/lectures-analysis-and-geometry-11
END:VEVENT
BEGIN:VEVENT
UID:33303561-3536-4334-b566-313934343535
DTSTAMP:20220123T174848Z
CREATED:20220106T155648Z
DESCRIPTION:Topic: No seminar\n\n
DTSTART:20220119T230000Z
DTEND:20220120T010000Z
LAST-MODIFIED:20220113T222124Z
LOCATION:
SUMMARY:Mathematical Conversations
URL:https://www.ias.edu/math/events/mathematical-conversations-225
END:VEVENT
BEGIN:VEVENT
UID:65343237-6430-4434-b831-633039646235
DTSTAMP:20220123T174848Z
CREATED:20211210T195245Z
DESCRIPTION:
DTSTART:20220120T150000Z
DTEND:20220120T170000Z
LAST-MODIFIED:20211210T195253Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Floer Learning Seminar
URL:https://www.ias.edu/math/events/floer-learning-seminar-6
END:VEVENT
BEGIN:VEVENT
UID:39396463-6366-4762-b765-316537343064
DTSTAMP:20220123T174848Z
CREATED:20211209T221637Z
DESCRIPTION:Topic: Instability and non-uniqueness in fluid dynamics - Part
I: Unstable vortex\n\nSpeakers: Elia Bruè\n\nAffiliation: Member\, School
of Mathematics\n\n
DTSTART:20220120T190000Z
DTEND:20220120T210000Z
LAST-MODIFIED:20220113T171039Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Discussions in Analysis and Geometry
URL:https://www.ias.edu/math/events/discussions-analysis-and-geometry-11
END:VEVENT
BEGIN:VEVENT
UID:35393932-3535-4565-b961-333135663836
DTSTAMP:20220123T174848Z
CREATED:20211209T220514Z
DESCRIPTION:Topic: No seminar\n\n
DTSTART:20220120T213000Z
DTEND:20220120T223000Z
LAST-MODIFIED:20220106T160714Z
LOCATION:
SUMMARY:Joint IAS/Princeton University Number Theory Seminar
URL:https://www.ias.edu/math/events/joint-iasprinceton-university-number-th
eory-seminar-468
END:VEVENT
BEGIN:VEVENT
UID:66633763-6238-4637-b237-633433306130
DTSTAMP:20220123T174848Z
CREATED:20211209T235209Z
DESCRIPTION:Topic: Beyond semitoric\n\nSpeakers: Susan Tolman\n\nAffiliatio
n: University of Illinois Urbana-Champaign\n\nA compact four dimensional c
ompletely integrable system $f: M \to R^2$\nis semitoric if it has only no
n-degenerate singularities\, without\nhyperbolic blocks\, and one of the c
omponents of generates a circle\naction. Semitoric systems have been exten
sively studied and have many\nnice properties: for example\, the preimages
$f^{-1}(x)$ are all\nconnected. Unfortunately\, although there are many i
nteresting examples\nof semitoric systems\, the class has some limitation.
For example\,\nthere are blowups of $S^2 \times S^2$ with Hamiltonian cir
cle actions\nwhich cannot be extended to semitoric systems. We expand the
class of\nsemitoric systems by allowing certain degenerate singularities\,
which\nwe call ephemeral singularities. We prove that the preimage\n$f^{-
1}(x)$ is still connected for this larger class. We hope that\nthis class
will be large enough to include not only all compact four\nmanifolds with
Hamiltonian circle actions\, but more generally all\ncomplexity one spaces
. Based on joint work with D. Sepe.\n
DTSTART:20220121T141500Z
DTEND:20220121T154500Z
LAST-MODIFIED:20220121T130208Z
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-69
END:VEVENT
BEGIN:VEVENT
UID:38393338-3466-4433-b930-383564383039
DTSTAMP:20220123T174848Z
CREATED:20211027T144933Z
DESCRIPTION:Topic: Reproducibility in Learning\n\nSpeakers: Jessica Sorrell
\n\nAffiliation: University of California San Diego\n\nReproducibility is
vital to ensuring scientific conclusions are\nreliable\, but failures of r
eproducibility have been a major issue in\nnearly all scientific areas of
study in recent decades. A key issue\nunderlying the reproducibility crisi
s is the explosion of methods for\ndata generation\, screening\, testing\,
and analysis\, where\, crucially\,\nonly the combinations producing the m
ost significant results are\nreported. Such practices (also known as p-hac
king\, data dredging\, and\nresearcher degrees of freedom) can lead to err
oneous findings that\nappear to be significant\, but that don’t hold up wh
en other\nresearchers attempt to replicate them. \n\nIn this talk\, we in
troduce a new notion of reproducibility for\nrandomized algorithms. This n
otion ensures that with high probability\,\nan algorithm returns exactly t
he same output when run with two samples\nfrom the same distribution\, sim
plifying the task of replication. We\npresent new algorithms for fundament
al learning problems that achieve\nthis notion of reproducibility\, and di
scuss connections to other\nwell-studied algorithmic properties\, such as
differential privacy. \n\nJoint work with Russell Impagliazzo (UCSD)\, Rex
Lei (UCSD)\, and\nToniann Pitassi (Columbia University)\n\n \n
DTSTART:20220124T161500Z
DTEND:20220124T171500Z
LAST-MODIFIED:20220104T143611Z
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-497
END:VEVENT
BEGIN:VEVENT
UID:66313432-3032-4465-a566-653335303736
DTSTAMP:20220123T174848Z
CREATED:20211209T214448Z
DESCRIPTION:Topic: Cubic surfaces and non-Euclidean geometry\n\nSpeakers: W
illiam Goldman\n\nAffiliation: University of Maryland\; Member\, School of
Mathematics\n\nThe classification of geometric structures on manifolds na
turally\nleads to actions of automorphism groups\, (such as mapping class
groups\nof surfaces) on 'character varieties' (spaces of equivalence class
es\nof representations of surface groups).\n\nJust as surfaces of Euler ch
aracteristic $-1$ and $-2$ are the\nbuilding blocks of surfaces\, their ch
aracter varieties are the\nbuilding blocks of character varieties in gener
al. They enjoy\nnatural mapping class group-invariant Posson structures.
\n\nThe simplest examples are affine cubic surfaces\, such as the Markoff
\nsurface\n\n\[ x^2 + y^2 + z^2 = x y z \]\n\nwhich parametrizes complete
hyperbolic structures on the punctured\ntorus. In general these actions ar
e dynamically complicated. Another\nnotable example is the surface\n\n\[
x^2 + y^2 + z^2 - x y z = k + 2\, \]\n\nwhere $k = 18$. This affine cubic
relates to Clebsch's diagonal cubic\nsurface\n\n\[ a^3 + b^3 + c^3 + d^3 +
e^3 = a + b + c + d + e = 0.\]\n\nHere the dynamics bifurcates from ergod
ic (with respect to the Poisson\nmeasure) when $2 < k < 18$ to wandering
for $k > 18$. This\nbifurcation can be understood in terms of lines on Cle
bsch's surface.\n
DTSTART:20220124T190000Z
DTEND:20220124T200000Z
LAST-MODIFIED:20220111T161152Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Members’ Colloquium
URL:https://www.ias.edu/math/events/members-colloquium-21
END:VEVENT
BEGIN:VEVENT
UID:63336138-3631-4534-a536-336466666366
DTSTAMP:20220123T174848Z
CREATED:20211210T001833Z
DESCRIPTION:Topic: Symplectomorphisms mirror to birational transformations
of the complex plane\n\nSpeakers: Abigail Ward\n\nAffiliation: Massachuset
ts Institute of Technology\n\nWe construct a non-finite type four-dimensio
nal Liouville manifold $M$\nand describe a correspondence between certain
birational\ntransformations of the complex plane preserving a standard hol
omorphic\nvolume form and symplectomorphisms of $M$. This manifold $M$ is
\nuniversal in the sense it admits every Liouville four-manifold mirror\nt
o a log Calabi-Yau surface as a subdomain\; our construction recovers\na m
irror correspondence between the automorphism group of any open log\nCalab
i-Yau surface and the symplectomorphism group of its mirror by\nrestrictio
n to these subdomains. This is joint work in progress with\nPaul Hacking a
nd Ailsa Keating.\n
DTSTART:20220124T210000Z
DTEND:20220124T223000Z
LAST-MODIFIED:20220118T221531Z
LOCATION:Simonyi Hall 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-177
END:VEVENT
BEGIN:VEVENT
UID:38393431-3037-4261-a362-303963646133
DTSTAMP:20220123T174848Z
CREATED:20211210T162154Z
DESCRIPTION:Topic: Bounds for subsets of $\mathbb{F}_p^n \times \mathbb{F}_
p^n$ without L-shaped configurations \n\nSpeakers: Sarah Peluse\n\nAffilia
tion: Institute for Advanced Study and Princeton University\; Veblen Resea
rch Instructor\, School of Mathematics\n\nI will discuss the difficult pro
blem of proving reasonable bounds in\nthe multidimensional generalization
of Szemerédi's theorem. Most of\nthe first talk will be spent going over
Shkredov's proof of good\nbounds for sets lacking corners\, in preparation
for the second talk\,\nwhere I'll describe a proof of reasonable bounds f
or sets lacking\nnontrivial configurations of the form $(x\,y)\, (x\,y+z)\
, (x\,y+2z)\,\n(x+z\,y)$ in the finite field model setting.\n
DTSTART:20220125T153000Z
DTEND:20220125T173000Z
LAST-MODIFIED:20220120T214227Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Computer Science/Discrete Mathematics Seminar II
URL:https://www.ias.edu/math/events/computer-sciencediscrete-mathematics-se
minar-ii-495
END:VEVENT
BEGIN:VEVENT
UID:31373738-3563-4839-b462-383836613130
DTSTAMP:20220123T174848Z
CREATED:20211209T234312Z
DESCRIPTION:Topic: Honda-Huang's work on contact convexity revisited\n\nSpe
akers: Dishant Mayurbhai Pancholi\n\nAffiliation: Chennai Mathematical Ins
titute\; von Neumann Fellow\, School of Mathematics\n\n
DTSTART:20220125T190000Z
DTEND:20220125T200000Z
LAST-MODIFIED:20220120T170343Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Seminar in Analysis and Geometry
URL:https://www.ias.edu/math/events/seminar-analysis-and-geometry-11
END:VEVENT
BEGIN:VEVENT
UID:32313434-6162-4065-b437-636331316130
DTSTAMP:20220123T174848Z
CREATED:20211209T234728Z
DESCRIPTION:Topic: Grothendieck Pairs and Profinite Rigidity\n\nSpeakers: M
artin Bridson\n\nAffiliation: Oxford University\n\nIf a monomorphism of ab
stract groups $H\hookrightarrow G$ induces an\nisomorphism of profinite co
mpletions\, then $(G\, H)$ is called a\n_Grothendieck pair\,_ recalling th
e fact that Grothendieck asked about\nthe existence of such pairs with $G$
and $H$ finitely presented and\nresidually finite. A finitely generated g
roup is said to _profinitely\nrigid_ if it can be distinguished from all o
ther finitely generated\,\nresidually finite groups by its profinite compl
etion. There is a rich\nhistory around the study of these ideas\, which I
shall sketch before\ndiscussing the recent surge of activity in this area.
The recent\nprogress draws on advances in geometric group theory and low
\ndimensional topology\; arithmetic orbifolds are the objects of primary\n
interest. Among these arithmetic orbifolds\, we find the first examples\no
f full-sized groups that are profinitely rigid.\n
DTSTART:20220126T160000Z
DTEND:20220126T171500Z
LAST-MODIFIED:20220113T192422Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Arithmetic Groups
URL:https://www.ias.edu/math/events/arithmetic-groups-12
END:VEVENT
BEGIN:VEVENT
UID:62373731-3065-4532-a134-633732653266
DTSTAMP:20220123T174848Z
CREATED:20211209T233637Z
DESCRIPTION:Topic: No seminar\n\n
DTSTART:20220126T190000Z
DTEND:20220126T210000Z
LAST-MODIFIED:20220121T211124Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Topics in Geometry
URL:https://www.ias.edu/math/events/topics-geometry
END:VEVENT
BEGIN:VEVENT
UID:39366435-3662-4537-a533-316634396330
DTSTAMP:20220123T174848Z
CREATED:20220106T155701Z
DESCRIPTION:Topic: From Stein to Weinstein and Back\n\nSpeakers: Kai Cielie
bak\n\nAffiliation: University of Augsburg\; Member\, School of Mathematic
s\n\nI will discuss some open questions about the relation between Stein\n
and Weinstein structures.\n
DTSTART:20220126T230000Z
DTEND:20220127T010000Z
LAST-MODIFIED:20220119T230311Z
LOCATION:Birch Garden\, Simons Hall
SUMMARY:Mathematical Conversations
URL:https://www.ias.edu/math/events/mathematical-conversations-226
END:VEVENT
BEGIN:VEVENT
UID:38663664-3262-4634-b363-616431373132
DTSTAMP:20220123T174848Z
CREATED:20211210T195259Z
DESCRIPTION:
DTSTART:20220127T150000Z
DTEND:20220127T170000Z
LAST-MODIFIED:20211210T195307Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Floer Learning Seminar
URL:https://www.ias.edu/math/events/floer-learning-seminar-7
END:VEVENT
BEGIN:VEVENT
UID:33336663-6263-4131-b232-326631336565
DTSTAMP:20220123T174848Z
CREATED:20211209T221649Z
DESCRIPTION:Topic: Instability and non-uniqueness in fluid dynamics - Part
II: Unstable vortex ring\n\nSpeakers: Dallas Albritton\n\nAffiliation: Mem
ber\, School of Mathematics\n\n
DTSTART:20220127T190000Z
DTEND:20220127T210000Z
LAST-MODIFIED:20220120T205455Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Topics in Analysis
URL:https://www.ias.edu/math/events/topics-analysis
END:VEVENT
BEGIN:VEVENT
UID:34663136-3531-4137-b837-646532633864
DTSTAMP:20220123T174848Z
CREATED:20211209T220528Z
DESCRIPTION:Topic: To Be Announced\n\n
DTSTART:20220127T213000Z
DTEND:20220127T223000Z
LAST-MODIFIED:20211209T220535Z
LOCATION:
SUMMARY:Joint IAS/Princeton University Number Theory Seminar
URL:https://www.ias.edu/math/events/joint-iasprinceton-university-number-th
eory-seminar-469
END:VEVENT
BEGIN:VEVENT
UID:31363231-3861-4435-a161-363964363561
DTSTAMP:20220123T174848Z
CREATED:20211209T235222Z
DESCRIPTION:Topic: Three 20 minute research talks\n\nSpeakers: Dustin Conne
ry-Grigg\, Pazit Haim-Kislev\, Thibaut Mazuir\n\nAffiliation: Université d
e Montreal\; Tel Aviv University\; University of Paris\n\nDUSTIN CONNERY-G
RIGG (UNIVERSITÉ DE MONTREAL)\, Geometry and topology\nof Hamiltonian Floe
r complexes in low-dimension\n\nIn this talk\, I will present two results
relating the qualitative\ndynamics of non-degenerate Hamiltonian isotopies
on surfaces to the\nstructure of their Floer complexes.\n\nThe first will
be a topological characterization of those Floer chains\nwhich represent
the fundamental class in $CF_*(H\,J)$ and which\nmoreover lie in the image
of some chain-level PSS map. This leads to a\nnovel symplectically bi-inv
ariant norm on the group of Hamiltonian\ndiffeomorphisms\, which is both $
C^0$-continuous and computable in\nterms of the underlying dynamics. The s
econd result explains how\ncertain portions of the Hamiltonian Floer chain
complex may be\ninterpreted geometrically in terms of positively transver
se singular\nfoliations of the mapping torus\, with singular leaves given
by certain\nmaximal collections of unlinked orbits of the suspended flow.
This\nconstruction may be seen to provide a Floer-theoretic construction o
f\nthe `torsion-low’ foliations which appear in Le Calvez’s theory of\ntra
nsverse foliations for surface homeomorphisms\, thereby establishing\na br
idge between the two theories.\n\nPAZIT HAIM-KISLEV (TEL AVIV UNIVERSITY)\
, Symplectic capacities of\n$p$-products\n\nA generalization of the cartes
ian product and the free sum of two\nconvex domains is the $p$-product ope
ration. We investigate the\nbehavior of symplectic capacities with respect
to symplectic\n$p$-products\, and we give applications related to Viterbo
's\nvolume-capacity conjecture and to $p$-decompositions of the symplectic
\nball.\n\nTHIBAUT MAZUIR (UNIVERSITY OF PARIS)\, Higher algebra of A-infi
nity\nalgebras in Morse theory\n\nIn this short talk\, I will introduce th
e notion of $n$-morphisms\nbetween two A-infinity algebras. These higher m
orphisms are such that\n0-morphisms correspond to standard A-infinity morp
hisms and\n1-morphisms correspond to A-infinity homotopies. Their combinat
orics\nare then encoded by new families of polytopes\, which I call the\nn
-multiplihedra and which generalize the standard multiplihedra.\n\nElabora
ting on works by Abouzaid and Mescher\, I will then explain how\nthis high
er algebra of A-infinity algebras naturally arises in the\ncontext of Mors
e theory\, using moduli spaces of perturbed Morse\ngradient trees.\n
DTSTART:20220128T141500Z
DTEND:20220128T154500Z
LAST-MODIFIED:20220120T194604Z
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-70
END:VEVENT
BEGIN:VEVENT
UID:32343337-3236-4636-b930-636365383632
DTSTAMP:20220123T174848Z
CREATED:20211027T145647Z
DESCRIPTION:Topic: Algorithmizing the Multiplicity Schwartz-Zippel Lemma\n
\nSpeakers: Prahladh Harsha\n\nAffiliation: Tata Institute of Fundamental
Research\n\nThe degree mantra states that any non-zero univariate polynomi
al of\ndegree at most d has at most d roots (counted with multiplicity). A
\ngeneralization of this to the multivariate setting\, proved by\nDvir-Kop
party-Saraf-Sudan asserts that over any field\, a low-degree\npolynomial c
annot vanish with high multiplicity very often on a\nsufficiently large pr
oduct set.\n\nIn this talk\, I'll present two recent results which algorit
hmize the\nabove lemma under different settings of parameters.\n\n(a) we s
how how to decode (even list-decode) multivariate multiplicity\ncodes of l
arge multiplicities in polynomial time over arbitrary finite\nproduct sets
(over fields of large characteristic and\nzero characteristic).\n\n(b) we
give an efficient algorithm for unique decoding of multivariate\nmultipli
city codes from half their minimum distance on arbitrary\nproduct sets ove
r all fields provided the multiplicity parameter is\nsmall.\n\nPreviously\
, such algorithms were known only when the arbitrary product\nsets had som
e special algebraic structure.\n\nBased on joint work with S. Bhandari\, M
. Kumar\, A. Shankar and M.\nSudan\n\n \n
DTSTART:20220131T161500Z
DTEND:20220131T171500Z
LAST-MODIFIED:20220110T205547Z
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-498
END:VEVENT
BEGIN:VEVENT
UID:32373932-3762-4333-a434-326435336138
DTSTAMP:20220123T174848Z
CREATED:20211209T214502Z
DESCRIPTION:Topic: To Be Announced\n\nSpeakers: Lai-Sang Young\n\nAffiliati
on: New York University\; Distinguished Visiting Professor\, School of Mat
hematics\n\n
DTSTART:20220131T190000Z
DTEND:20220131T200000Z
LAST-MODIFIED:20211215T193852Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Members’ Colloquium
URL:https://www.ias.edu/math/events/members-colloquium-22
END:VEVENT
BEGIN:VEVENT
UID:36663232-3736-4561-b136-343763373963
DTSTAMP:20220123T174848Z
CREATED:20211210T001847Z
DESCRIPTION:Topic: To Be Announced\n\nSpeakers: Julian Chaidez\n\nAffiliati
on: Princeton University\; Visitor\, School of Mathematics\n\n
DTSTART:20220131T210000Z
DTEND:20220131T223000Z
LAST-MODIFIED:20220118T221553Z
LOCATION:Simonyi Hall 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-178
END:VEVENT
BEGIN:VEVENT
UID:34646434-3838-4862-a366-663066643836
DTSTAMP:20220123T174848Z
CREATED:20211210T162209Z
DESCRIPTION:Topic: Bounds for subsets of $\mathbb{F}_p^n \times \mathbb{F}_
p^n$ without L-shaped configurations \n\nSpeakers: Sarah Peluse\n\nAffilia
tion: Veblen Instructor\, School of Mathematics\n\nI will discuss the diff
icult problem of proving reasonable bounds in\nthe multidimensional genera
lization of Szemerédi's theorem. Most of\nthe first talk will be spent goi
ng over Shkredov's proof of good\nbounds for sets lacking corners\, in pre
paration for the second talk\,\nwhere I'll describe a proof of reasonable
bounds for sets lacking\nnontrivial configurations of the form $(x\,y)\, (
x\,y+z)\, (x\,y+2z)\,\n(x+z\,y)$ in the finite field model setting.\n
DTSTART:20220201T153000Z
DTEND:20220201T173000Z
LAST-MODIFIED:20220120T214146Z
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-496
END:VEVENT
BEGIN:VEVENT
UID:33313733-3733-4663-b861-346131373263
DTSTAMP:20220123T174848Z
CREATED:20211026T151711Z
DESCRIPTION:Topic: How to build a fluid clock\n\nSpeakers: Theodore Dimitri
os Drivas\n\nAffiliation: Member\, School of Mathematics\n\n
DTSTART:20220201T180000Z
DTEND:20220201T181500Z
LAST-MODIFIED:20220103T130532Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Short Talks by Postdoctoral Members
URL:https://www.ias.edu/math/events/short-talks-postdoctoral-members-571
END:VEVENT
BEGIN:VEVENT
UID:64643230-6638-4239-b637-333963316166
DTSTAMP:20220123T174848Z
CREATED:20211026T151849Z
DESCRIPTION:Topic: On the Birch and Swinnerton-Dyer conjecture over quadrat
ic fields: the reducible case\n\nSpeakers: Emmanuel Lecouturier\n\nAffilia
tion: Member\, School of Mathematics\n\n
DTSTART:20220201T182000Z
DTEND:20220201T184000Z
LAST-MODIFIED:20211221T144310Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Short Talks by Postdoctoral Members
URL:https://www.ias.edu/math/events/short-talks-postdoctoral-members-572
END:VEVENT
BEGIN:VEVENT
UID:33363431-6565-4035-a634-393137316162
DTSTAMP:20220123T174848Z
CREATED:20211209T234325Z
DESCRIPTION:Topic: To Be Announced\n\n
DTSTART:20220201T190000Z
DTEND:20220201T200000Z
LAST-MODIFIED:20211209T234333Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Seminar in Analysis and Geometry
URL:https://www.ias.edu/math/events/seminar-analysis-and-geometry-12
END:VEVENT
BEGIN:VEVENT
UID:39316362-6462-4136-b432-363639343462
DTSTAMP:20220123T174848Z
CREATED:20211209T234741Z
DESCRIPTION:Topic: Profinite Completions and Representation Rigidity\n\nSpe
akers: Ryan Spitler\n\nAffiliation: Rice University\n\nTaking up the termi
nology established in the first lecture\, in 1970\nGrothendieck showed tha
t when two groups $(G\,H)$ form a Grothendieck\npair\, there is an equival
ence of their linear representations. For\nrecent work showing that certai
n groups are profinitely rigid\, one\nstep is to relate linear representat
ions of groups which are only\nprofinitely equivalent\, $\widehat{G} \cong
\widehat{H}$\, when $G$ has\ncertain representation rigidity properties.
In particular\, one can\nproduce a representation of $H$ with arithmetic i
nformation related to\nthat of $G$. In some cases\, this allows one to red
uce the question of\nabsolute profinite rigidity\, $G$ is profinitely rigi
d among all\nfinitely generated residually finite groups\, to a relative p
rofinite\nrigidity question\, that $G$ is profinitely rigid within some\nr
estricted class.\n\nIn this lecture\, I will discuss this relationship of
linear\nrepresentations in detail to convey its reach and its limitations.
I\nwill explain the specific consequences which follow when considering\n
higher-rank arithmetic groups\, and the role of the congruence subgroup\np
roperty in these cases. I will also give some indication of how the\nproof
s come from relating the $p$-adic representations of a group with\nthose o
f its profinite completion.\n
DTSTART:20220202T160000Z
DTEND:20220202T171500Z
LAST-MODIFIED:20220113T192454Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Arithmetic Groups
URL:https://www.ias.edu/math/events/arithmetic-groups-13
END:VEVENT
BEGIN:VEVENT
UID:65396364-3439-4263-b663-336332626535
DTSTAMP:20220123T174848Z
CREATED:20211209T233650Z
DESCRIPTION:Topic: To Be Announced\n\n
DTSTART:20220202T190000Z
DTEND:20220202T210000Z
LAST-MODIFIED:20220120T203723Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Topics in Geometry
URL:https://www.ias.edu/math/events/topics-geometry-0
END:VEVENT
BEGIN:VEVENT
UID:30636333-6166-4561-b636-306435356635
DTSTAMP:20220123T174848Z
CREATED:20220106T155715Z
DESCRIPTION:Topic: To Be Announced\n\n
DTSTART:20220202T230000Z
DTEND:20220203T010000Z
LAST-MODIFIED:20220119T224754Z
LOCATION:Birch Garden\, Simons Hall
SUMMARY:Mathematical Conversations
URL:https://www.ias.edu/math/events/mathematical-conversations-227
END:VEVENT
BEGIN:VEVENT
UID:38333462-3236-4538-b764-396431376364
DTSTAMP:20220123T174848Z
CREATED:20211210T195312Z
DESCRIPTION:
DTSTART:20220203T150000Z
DTEND:20220203T170000Z
LAST-MODIFIED:20211210T195319Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Floer Learning Seminar
URL:https://www.ias.edu/math/events/floer-learning-seminar-8
END:VEVENT
BEGIN:VEVENT
UID:39646661-3166-4661-a630-613464343738
DTSTAMP:20220123T174848Z
CREATED:20211209T221702Z
DESCRIPTION:Topic: Instability and non-uniqueness in fluid dynamics - Part
III: Non-uniqueness of Leray solutions\n\nSpeakers: Elia Bruè\n\nAffiliati
on: Member\, School of Mathematics\n\n
DTSTART:20220203T190000Z
DTEND:20220203T210000Z
LAST-MODIFIED:20220120T205515Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Topics in Analysis
URL:https://www.ias.edu/math/events/topics-analysis-0
END:VEVENT
BEGIN:VEVENT
UID:65343361-6336-4137-b339-336664643762
DTSTAMP:20220123T174848Z
CREATED:20211209T220541Z
DESCRIPTION:Topic: To Be Announced\n\n
DTSTART:20220203T213000Z
DTEND:20220203T223000Z
LAST-MODIFIED:20211209T220549Z
LOCATION:
SUMMARY:Joint IAS/Princeton University Number Theory Seminar
URL:https://www.ias.edu/math/events/joint-iasprinceton-university-number-th
eory-seminar-470
END:VEVENT
BEGIN:VEVENT
UID:63643038-6233-4531-b865-626239383437
DTSTAMP:20220123T174848Z
CREATED:20211209T235236Z
DESCRIPTION:Topic: To Be Announced\n\n
DTSTART:20220204T141500Z
DTEND:20220204T154500Z
LAST-MODIFIED:20211209T235244Z
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-71
END:VEVENT
BEGIN:VEVENT
UID:36366131-3031-4665-b565-333938326563
DTSTAMP:20220123T174848Z
CREATED:20211027T173120Z
DESCRIPTION:Topic: No Seminar\n\n
DTSTART:20220207T161500Z
DTEND:20220207T171500Z
LAST-MODIFIED:20211027T173250Z
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-499
END:VEVENT
BEGIN:VEVENT
UID:61636262-3263-4332-b336-656531353934
DTSTAMP:20220123T174848Z
CREATED:20211209T214515Z
DESCRIPTION:Topic: To Be Announced\n\nSpeakers: Svitlana Mayboroda\n\nAffil
iation: University of Minnesota\n\n
DTSTART:20220207T190000Z
DTEND:20220207T200000Z
LAST-MODIFIED:20211222T192456Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Members’ Colloquium
URL:https://www.ias.edu/math/events/members-colloquium-23
END:VEVENT
BEGIN:VEVENT
UID:33396130-3134-4763-b334-323363353136
DTSTAMP:20220123T174848Z
CREATED:20211210T001902Z
DESCRIPTION:Topic: To Be Announced\n\nSpeakers: Kai Cieliebak\n\nAffiliatio
n: Augsburg University\; Member\, School of Mathematics\n\n
DTSTART:20220207T210000Z
DTEND:20220207T223000Z
LAST-MODIFIED:20220118T221615Z
LOCATION:Simonyi Hall 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-179
END:VEVENT
BEGIN:VEVENT
UID:39386435-3462-4162-a336-626639336465
DTSTAMP:20220123T174848Z
CREATED:20211210T162222Z
DESCRIPTION:Topic: No Seminar\n\n
DTSTART:20220208T153000Z
DTEND:20220208T173000Z
LAST-MODIFIED:20220118T165258Z
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-497
END:VEVENT
BEGIN:VEVENT
UID:36343832-3635-4237-b164-323866363530
DTSTAMP:20220123T174848Z
CREATED:20211209T234338Z
DESCRIPTION:Topic: To Be Announced\n\n
DTSTART:20220208T190000Z
DTEND:20220208T200000Z
LAST-MODIFIED:20211209T234346Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Seminar in Analysis and Geometry
URL:https://www.ias.edu/math/events/seminar-analysis-and-geometry-13
END:VEVENT
BEGIN:VEVENT
UID:36306362-3338-4331-a137-656266376537
DTSTAMP:20220123T174848Z
CREATED:20211209T234755Z
DESCRIPTION:Topic: From $PSL_2$ representation rigidity to profinite rigidi
ty\n\nSpeakers: Alan Reid\, Ben McReynolds\n\nAffiliation: Rice University
\; Purdue University\n\nIn the first part of this talk\, we take the ideas
of the second talk\nand focus on the case of (arithmetic) lattices in $PS
L(2\,R)$ and\n$PSL(2\,C)$. The required representation rigidity is achieve
d by what\nwe call Galois rigidity. In particular if $\Gamma_1$ is a Galoi
s rigid\nlattice in $PSL(2\,R)$ or $PSL(2\,C)$ and $\Gamma_2$ a finitely\n
generated residually finite group with $\widehat{\Gamma}_1\cong\n\widehat{
\Gamma}_2$\, then we first show how to build a $PSL(2\,R)$ or\n$PSL(2\,C)$
Zariski dense representation of $\Gamma_2$ using local\nrepresentations.
\n\nUnder additional algebraic assumptions on $\Gamma_1$\, we will discuss
\nhow to further refine this to produce a homomorphism from $\Gamma_2$\nto
$\Gamma_1$.\n\nIn the second part of the talk\, we will next proceed to d
escribe\nexplicit examples of arithmetic Kleinian groups where we can exec
ute\nthe set up described above\, and where we can also execute the final
\npart of the program to prove that these groups are profinitely rigid\n(a
s advertised in Lecture 1).\n\nTime permitting we finish by commenting on
more recent work: (1) that\ncertain closed Seifert fibered spaces have fun
damental groups that are\nprofinitely rigid\, and (2) using these examples
to build examples of\ngroups that are profinitely rigid amongst finitely
presented groups\nbut not finitely generated groups.\n
DTSTART:20220209T160000Z
DTEND:20220209T171500Z
LAST-MODIFIED:20220113T205229Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Arithmetic Groups
URL:https://www.ias.edu/math/events/arithmetic-groups-14
END:VEVENT
BEGIN:VEVENT
UID:61326163-3363-4231-b262-333361366434
DTSTAMP:20220123T174849Z
CREATED:20211209T233702Z
DESCRIPTION:Topic: To Be Announced\n\n
DTSTART:20220209T190000Z
DTEND:20220209T210000Z
LAST-MODIFIED:20220120T203743Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Topics in Geometry
URL:https://www.ias.edu/math/events/topics-geometry-1
END:VEVENT
BEGIN:VEVENT
UID:63646262-6162-4865-b239-613739363630
DTSTAMP:20220123T174849Z
CREATED:20220106T155728Z
DESCRIPTION:Topic: To Be Announced\n\n
DTSTART:20220209T230000Z
DTEND:20220210T010000Z
LAST-MODIFIED:20220119T224813Z
LOCATION:Birch Garden\, Simons Hall
SUMMARY:Mathematical Conversations
URL:https://www.ias.edu/math/events/mathematical-conversations-228
END:VEVENT
BEGIN:VEVENT
UID:30333631-3134-4764-b937-626539343563
DTSTAMP:20220123T174849Z
CREATED:20211210T195325Z
DESCRIPTION:
DTSTART:20220210T150000Z
DTEND:20220210T170000Z
LAST-MODIFIED:20211210T195332Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Floer Learning Seminar
URL:https://www.ias.edu/math/events/floer-learning-seminar-9
END:VEVENT
BEGIN:VEVENT
UID:30393731-3533-4161-a665-643539333361
DTSTAMP:20220123T174849Z
CREATED:20211209T221716Z
DESCRIPTION:Topic: Instability and non-uniqueness in fluid dynamics - Part
IV: Sharpness of the Yudovich class\n\nSpeakers: Dallas Albritton\n\nAffil
iation: Member\, School of Mathematics\n\n
DTSTART:20220210T190000Z
DTEND:20220210T210000Z
LAST-MODIFIED:20220120T205535Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Topics in Analysis
URL:https://www.ias.edu/math/events/topics-analysis-1
END:VEVENT
BEGIN:VEVENT
UID:39303832-3734-4139-a163-316132393038
DTSTAMP:20220123T174849Z
CREATED:20211209T220555Z
DESCRIPTION:Topic: To Be Announced\n\n
DTSTART:20220210T213000Z
DTEND:20220210T223000Z
LAST-MODIFIED:20211209T220603Z
LOCATION:
SUMMARY:Joint IAS/Princeton University Number Theory Seminar
URL:https://www.ias.edu/math/events/joint-iasprinceton-university-number-th
eory-seminar-471
END:VEVENT
BEGIN:VEVENT
UID:65636338-6563-4333-b038-656462323639
DTSTAMP:20220123T174849Z
CREATED:20211209T235250Z
DESCRIPTION:Topic: To Be Announced\n\n
DTSTART:20220211T141500Z
DTEND:20220211T154500Z
LAST-MODIFIED:20211209T235258Z
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-72
END:VEVENT
BEGIN:VEVENT
UID:38626635-3664-4031-a461-666638396636
DTSTAMP:20220123T174849Z
CREATED:20211027T173309Z
DESCRIPTION:Topic: Random algebraic varieties and their applications to har
dness of approximation\n\nSpeakers: Bhargav Narayanan\n\nAffiliation: Rutg
ers University\n\nThis talk will serve as an introduction to the random al
gebraic\nmethod. This method has its origins in the following problem: sup
pose\nthe binomial random graph comes 'close' to having some property of\n
interest P\, but fails to do so because of the inherent 'long Poisson\ntai
ls'\; what can we do to overcome this? It turns out that in such\nsituatio
ns\, it is often possible to construct graphs using the zeros\nof random p
olynomials that actually have said property P. \n\nI shall illustrate this
method by discussing the easiest applications\nin detail\, and then outli
ne how this method has recently found\napplications\, in recent work with
Boris Bukh and Karthik C.S.\, in\nestablishing computational hardness resu
lts for a few basic problems.\nAs a taste of what is to come\, this approa
ch easily allows us to\nconstruct graphs that have stronger guarantees tha
n the celebrated\nnorm graphs of Kollar\, Ronyai\, and Szabo\, as far as a
pplications to\nhardness of approximation are concerned.\n
DTSTART:20220214T161500Z
DTEND:20220214T171500Z
LAST-MODIFIED:20220120T185323Z
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-500
END:VEVENT
BEGIN:VEVENT
UID:39326661-6436-4262-b264-356332646630
DTSTAMP:20220123T174849Z
CREATED:20211209T214528Z
DESCRIPTION:Topic: To Be Announced\n\nSpeakers: Bahar Acu\n\nAffiliation: E
TH Zurich\; Member\, School of Mathematics\n\n
DTSTART:20220214T190000Z
DTEND:20220214T200000Z
LAST-MODIFIED:20211215T193935Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Members’ Colloquium
URL:https://www.ias.edu/math/events/members-colloquium-24
END:VEVENT
BEGIN:VEVENT
UID:34613438-6164-4331-b534-376165613638
DTSTAMP:20220123T174849Z
CREATED:20211210T001918Z
DESCRIPTION:Topic: To Be Announced\n\n
DTSTART:20220214T210000Z
DTEND:20220214T223000Z
LAST-MODIFIED:20211210T001926Z
LOCATION:
SUMMARY:Joint IAS/Princeton University Symplectic Geometry Seminar
URL:https://www.ias.edu/math/events/joint-iasprinceton-university-symplecti
c-geometry-seminar-180
END:VEVENT
BEGIN:VEVENT
UID:33386239-3236-4331-a538-313339393239
DTSTAMP:20220123T174849Z
CREATED:20211210T162236Z
DESCRIPTION:Topic: To Be Announced\n\nSpeakers: Roei Tell\n\nAffiliation: M
ember\, School of Mathematics\n\n
DTSTART:20220215T153000Z
DTEND:20220215T173000Z
LAST-MODIFIED:20220118T165026Z
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-498
END:VEVENT
BEGIN:VEVENT
UID:65666361-6563-4164-b166-313530363762
DTSTAMP:20220123T174849Z
CREATED:20211209T234352Z
DESCRIPTION:Topic: To Be Announced\n\n
DTSTART:20220215T190000Z
DTEND:20220215T200000Z
LAST-MODIFIED:20211209T234400Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Seminar in Analysis and Geometry
URL:https://www.ias.edu/math/events/seminar-analysis-and-geometry-14
END:VEVENT
BEGIN:VEVENT
UID:33323538-6533-4439-b561-383037366630
DTSTAMP:20220123T174849Z
CREATED:20211209T234807Z
DESCRIPTION:Topic: To Be Announced\n\n
DTSTART:20220216T160000Z
DTEND:20220216T171500Z
LAST-MODIFIED:20211209T234814Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Arithmetic Groups
URL:https://www.ias.edu/math/events/arithmetic-groups-15
END:VEVENT
BEGIN:VEVENT
UID:62626136-6337-4562-b034-653231353633
DTSTAMP:20220123T174849Z
CREATED:20220119T160032Z
DESCRIPTION:Topic: From Compilation to Indexing: Tracing the Practice of Ea
rly Modern Orientalist Scholarship\n\nPAUL BABINSKI\, University of Copenh
agen\n\nHow did orientalists read\, learn languages\, and produce dictiona
ries\,\neditions\, and other works? Annotated manuscripts in particular of
fer a\nglimpse into the orientalist’s study\, showing the sources they use
d\,\ntheir methods of deciphering texts and comparing manuscripts\, and\nt
heir collaboration with amanuenses. Annotations also afford us a\nview of
development over time\, charting practices of early modern\norientalist sc
holarship through shifting patterns of note-taking. This\ntalk will trace
that history in the early modern period\, giving an\noverview of the conve
ntions of orientalist annotation and focusing on\na comparison between man
uscripts from the two premier Western European\nArabists of the seventeent
h and eighteenth centuries\, respectively:\nJacob Golius and Johann Jacob
Reiske. Both scholars’ libraries\nremain largely intact\, and\, viewed bro
adly\, offer a perspective onto\nquestions of scholarly specialization\, t
he character of philological\nprogress\, and the changing social contexts
of orientalist learning. \n\nREGISTER IN ADVANCE HERE\n[https://theias.zoo
m.us/meeting/register/tZYucuutqD8sH9Ej6uFuNoOS2u08trqw-8iO].\nAfter regist
ering\, you will receive an email containing information\nabout joining th
e event.\n
DTSTART:20220216T170000Z
DTEND:20220216T170000Z
LAST-MODIFIED:20220119T161242Z
LOCATION:Zoom event
SUMMARY:Near Eastern Studies Lecture
URL:https://www.ias.edu/hs/events/near-eastern-studies-lecture-0
END:VEVENT
BEGIN:VEVENT
UID:36646162-3263-4365-a166-643965396565
DTSTAMP:20220123T174849Z
CREATED:20211209T233715Z
DESCRIPTION:Topic: To Be Announced\n\n
DTSTART:20220216T190000Z
DTEND:20220216T210000Z
LAST-MODIFIED:20220120T203803Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Topics in Geometry
URL:https://www.ias.edu/math/events/topics-geometry-2
END:VEVENT
BEGIN:VEVENT
UID:39383864-6461-4430-a533-633736633561
DTSTAMP:20220123T174849Z
CREATED:20220106T155741Z
DESCRIPTION:Topic: To Be Announced\n\n
DTSTART:20220216T230000Z
DTEND:20220217T010000Z
LAST-MODIFIED:20220119T224833Z
LOCATION:Birch Garden\, Simons Hall
SUMMARY:Mathematical Conversations
URL:https://www.ias.edu/math/events/mathematical-conversations-229
END:VEVENT
BEGIN:VEVENT
UID:39653637-6430-4464-b363-646133643164
DTSTAMP:20220123T174849Z
CREATED:20211210T195338Z
DESCRIPTION:
DTSTART:20220217T150000Z
DTEND:20220217T170000Z
LAST-MODIFIED:20211210T195345Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Floer Learning Seminar
URL:https://www.ias.edu/math/events/floer-learning-seminar-10
END:VEVENT
BEGIN:VEVENT
UID:34666235-3363-4464-b466-323638633039
DTSTAMP:20220123T174849Z
CREATED:20211209T221730Z
DESCRIPTION:Topic: To Be Announced\n\n
DTSTART:20220217T190000Z
DTEND:20220217T210000Z
LAST-MODIFIED:20220120T205553Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Topics in Analysis
URL:https://www.ias.edu/math/events/topics-analysis-2
END:VEVENT
BEGIN:VEVENT
UID:66393132-3463-4738-a533-356137666562
DTSTAMP:20220123T174849Z
CREATED:20211209T220609Z
DESCRIPTION:Topic: To Be Announced\n\n
DTSTART:20220217T213000Z
DTEND:20220217T223000Z
LAST-MODIFIED:20211209T220615Z
LOCATION:
SUMMARY:Joint IAS/Princeton University Number Theory Seminar
URL:https://www.ias.edu/math/events/joint-iasprinceton-university-number-th
eory-seminar-472
END:VEVENT
BEGIN:VEVENT
UID:61396238-3931-4661-b937-303162376437
DTSTAMP:20220123T174849Z
CREATED:20211209T235304Z
DESCRIPTION:Topic: To Be Announced\n\n
DTSTART:20220218T141500Z
DTEND:20220218T154500Z
LAST-MODIFIED:20211209T235311Z
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-73
END:VEVENT
BEGIN:VEVENT
UID:39313033-6430-4239-a463-626237386131
DTSTAMP:20220123T174849Z
CREATED:20211027T173941Z
DESCRIPTION:Topic: TBA\n\nSpeakers: Noga Alon\n\nAffiliation: Princeton Uni
versity\n\n
DTSTART:20220221T161500Z
DTEND:20220221T171500Z
LAST-MODIFIED:20211027T174045Z
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-501
END:VEVENT
BEGIN:VEVENT
UID:64316166-3432-4437-b266-616139323661
DTSTAMP:20220123T174849Z
CREATED:20211209T214542Z
DESCRIPTION:Topic: No seminar: Presidents' Day\n\n
DTSTART:20220221T190000Z
DTEND:20220221T200000Z
LAST-MODIFIED:20211215T193956Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Members’ Colloquium
URL:https://www.ias.edu/math/events/members-colloquium-25
END:VEVENT
BEGIN:VEVENT
UID:36363337-6564-4831-a239-326333623563
DTSTAMP:20220123T174849Z
CREATED:20211210T001932Z
DESCRIPTION:Topic: To Be Announced\n\n
DTSTART:20220221T210000Z
DTEND:20220221T223000Z
LAST-MODIFIED:20211210T001939Z
LOCATION:
SUMMARY:Joint IAS/Princeton University Symplectic Geometry Seminar
URL:https://www.ias.edu/math/events/joint-iasprinceton-university-symplecti
c-geometry-seminar-181
END:VEVENT
BEGIN:VEVENT
UID:61633731-6531-4836-a334-653735343837
DTSTAMP:20220123T174849Z
CREATED:20211210T162249Z
DESCRIPTION:Topic: To Be Announced\n\nSpeakers: Liije Chen\n\nAffiliation:
Massachusetts Institute of Technology\n\n
DTSTART:20220222T153000Z
DTEND:20220222T173000Z
LAST-MODIFIED:20220118T165221Z
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-499
END:VEVENT
BEGIN:VEVENT
UID:34633363-6639-4631-b032-393862343061
DTSTAMP:20220123T174849Z
CREATED:20211209T234406Z
DESCRIPTION:Topic: To Be Announced\n\n
DTSTART:20220222T190000Z
DTEND:20220222T200000Z
LAST-MODIFIED:20211209T234414Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Seminar in Analysis and Geometry
URL:https://www.ias.edu/math/events/seminar-analysis-and-geometry-15
END:VEVENT
BEGIN:VEVENT
UID:33613832-6362-4334-b563-316166656138
DTSTAMP:20220123T174849Z
CREATED:20211209T234820Z
DESCRIPTION:Topic: To Be Announced\n\n
DTSTART:20220223T160000Z
DTEND:20220223T171500Z
LAST-MODIFIED:20211209T234828Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Arithmetic Groups
URL:https://www.ias.edu/math/events/arithmetic-groups-16
END:VEVENT
BEGIN:VEVENT
UID:65623538-6366-4464-b338-323633323735
DTSTAMP:20220123T174849Z
CREATED:20211209T233728Z
DESCRIPTION:Topic: To Be Announced\n\n
DTSTART:20220223T190000Z
DTEND:20220223T210000Z
LAST-MODIFIED:20220120T203823Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Topics in Geometry
URL:https://www.ias.edu/math/events/topics-geometry-3
END:VEVENT
BEGIN:VEVENT
UID:31646533-3936-4631-b438-626636386637
DTSTAMP:20220123T174849Z
CREATED:20220106T155754Z
DESCRIPTION:Topic: To Be Announced\n\n
DTSTART:20220223T230000Z
DTEND:20220224T010000Z
LAST-MODIFIED:20220119T224853Z
LOCATION:Birch Garden\, Simons Hall
SUMMARY:Mathematical Conversations
URL:https://www.ias.edu/math/events/mathematical-conversations-230
END:VEVENT
BEGIN:VEVENT
UID:39613838-3363-4263-b630-343065646137
DTSTAMP:20220123T174849Z
CREATED:20211210T195351Z
DESCRIPTION:
DTSTART:20220224T150000Z
DTEND:20220224T170000Z
LAST-MODIFIED:20211210T195359Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Floer Learning Seminar
URL:https://www.ias.edu/math/events/floer-learning-seminar-11
END:VEVENT
BEGIN:VEVENT
UID:66396366-3963-4964-b864-373632306232
DTSTAMP:20220123T174849Z
CREATED:20211209T221742Z
DESCRIPTION:Topic: To Be Announced\n\n
DTSTART:20220224T190000Z
DTEND:20220224T210000Z
LAST-MODIFIED:20220120T205613Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Topics in Analysis
URL:https://www.ias.edu/math/events/topics-analysis-3
END:VEVENT
BEGIN:VEVENT
UID:61646166-6465-4436-b138-366138373763
DTSTAMP:20220123T174849Z
CREATED:20211209T220621Z
DESCRIPTION:Topic: To Be Announced\n\n
DTSTART:20220224T213000Z
DTEND:20220224T223000Z
LAST-MODIFIED:20211209T220628Z
LOCATION:
SUMMARY:Joint IAS/Princeton University Number Theory Seminar
URL:https://www.ias.edu/math/events/joint-iasprinceton-university-number-th
eory-seminar-473
END:VEVENT
BEGIN:VEVENT
UID:61323537-3439-4633-b234-303732643030
DTSTAMP:20220123T174849Z
CREATED:20211209T235317Z
DESCRIPTION:Topic: To Be Announced\n\n
DTSTART:20220225T141500Z
DTEND:20220225T154500Z
LAST-MODIFIED:20211209T235324Z
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-74
END:VEVENT
BEGIN:VEVENT
UID:33306161-6338-4136-a437-636231616538
DTSTAMP:20220123T174849Z
CREATED:20211027T174359Z
DESCRIPTION:Topic: TBD\n\nSpeakers: Pravesh Kothari\n\nAffiliation: Carnegi
e Mellon University\n\n
DTSTART:20220228T161500Z
DTEND:20220228T171500Z
LAST-MODIFIED:20211027T174534Z
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-502
END:VEVENT
BEGIN:VEVENT
UID:39666636-3031-4666-b934-383137643330
DTSTAMP:20220123T174849Z
CREATED:20211209T214555Z
DESCRIPTION:Topic: To Be Announced\n\nSpeakers: Jacob Lurie\n\nAffiliation:
Professor\, School of Mathematics\n\n
DTSTART:20220228T190000Z
DTEND:20220228T200000Z
LAST-MODIFIED:20211215T194017Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Members’ Colloquium
URL:https://www.ias.edu/math/events/members-colloquium-26
END:VEVENT
BEGIN:VEVENT
UID:62363134-3262-4631-b834-666666623332
DTSTAMP:20220123T174849Z
CREATED:20211210T001944Z
DESCRIPTION:Topic: To Be Announced\n\n
DTSTART:20220228T210000Z
DTEND:20220228T223000Z
LAST-MODIFIED:20211210T001952Z
LOCATION:
SUMMARY:Joint IAS/Princeton University Symplectic Geometry Seminar
URL:https://www.ias.edu/math/events/joint-iasprinceton-university-symplecti
c-geometry-seminar-182
END:VEVENT
BEGIN:VEVENT
UID:39333836-3137-4163-b366-303631363438
DTSTAMP:20220123T174849Z
CREATED:20211210T162304Z
DESCRIPTION:Topic: To Be Announced\n\nSpeakers: Roei Tell\n\nAffiliation: M
ember\, School of Mathematics\n\n
DTSTART:20220301T153000Z
DTEND:20220301T173000Z
LAST-MODIFIED:20220118T165349Z
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-500
END:VEVENT
BEGIN:VEVENT
UID:33356464-6466-4031-b866-313738363735
DTSTAMP:20220123T174849Z
CREATED:20211209T234420Z
DESCRIPTION:Topic: To Be Announced\n\n
DTSTART:20220301T190000Z
DTEND:20220301T200000Z
LAST-MODIFIED:20211209T234427Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Seminar in Analysis and Geometry
URL:https://www.ias.edu/math/events/seminar-analysis-and-geometry-16
END:VEVENT
BEGIN:VEVENT
UID:61663639-6561-4866-a138-363831663535
DTSTAMP:20220123T174849Z
CREATED:20211209T234834Z
DESCRIPTION:Topic: To Be Announced\n\n
DTSTART:20220302T160000Z
DTEND:20220302T171500Z
LAST-MODIFIED:20211209T234840Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Arithmetic Groups
URL:https://www.ias.edu/math/events/arithmetic-groups-17
END:VEVENT
BEGIN:VEVENT
UID:30613335-6239-4537-b838-333962313830
DTSTAMP:20220123T174849Z
CREATED:20211209T233742Z
DESCRIPTION:Topic: To Be Announced\n\n
DTSTART:20220302T190000Z
DTEND:20220302T210000Z
LAST-MODIFIED:20220120T203841Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Topics in Geometry
URL:https://www.ias.edu/math/events/topics-geometry-4
END:VEVENT
BEGIN:VEVENT
UID:64663164-3863-4137-a266-343830363764
DTSTAMP:20220123T174849Z
CREATED:20220106T155808Z
DESCRIPTION:Topic: To Be Announced\n\n
DTSTART:20220302T230000Z
DTEND:20220303T010000Z
LAST-MODIFIED:20220119T224913Z
LOCATION:Birch Garden\, Simons Hall
SUMMARY:Mathematical Conversations
URL:https://www.ias.edu/math/events/mathematical-conversations-231
END:VEVENT
BEGIN:VEVENT
UID:33316331-6265-4566-b437-383763396437
DTSTAMP:20220123T174849Z
CREATED:20211210T195405Z
DESCRIPTION:
DTSTART:20220303T150000Z
DTEND:20220303T170000Z
LAST-MODIFIED:20211210T195412Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Floer Learning Seminar
URL:https://www.ias.edu/math/events/floer-learning-seminar-12
END:VEVENT
BEGIN:VEVENT
UID:65366264-6135-4630-a431-626633386661
DTSTAMP:20220123T174849Z
CREATED:20211209T221756Z
DESCRIPTION:Topic: To Be Announced\n\n
DTSTART:20220303T190000Z
DTEND:20220303T210000Z
LAST-MODIFIED:20220120T205633Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Topics in Analysis
URL:https://www.ias.edu/math/events/topics-analysis-4
END:VEVENT
BEGIN:VEVENT
UID:64323936-6534-4461-b935-376438626131
DTSTAMP:20220123T174849Z
CREATED:20211209T220634Z
DESCRIPTION:Topic: To Be Announced\n\n
DTSTART:20220303T213000Z
DTEND:20220303T223000Z
LAST-MODIFIED:20211209T220640Z
LOCATION:
SUMMARY:Joint IAS/Princeton University Number Theory Seminar
URL:https://www.ias.edu/math/events/joint-iasprinceton-university-number-th
eory-seminar-474
END:VEVENT
BEGIN:VEVENT
UID:36323930-3933-4435-b137-623461386266
DTSTAMP:20220123T174849Z
CREATED:20211209T235330Z
DESCRIPTION:Topic: To Be Announced\n\n
DTSTART:20220304T141500Z
DTEND:20220304T154500Z
LAST-MODIFIED:20211209T235338Z
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-75
END:VEVENT
BEGIN:VEVENT
UID:36353331-3131-4937-b336-653964633462
DTSTAMP:20220123T174849Z
CREATED:20211027T174555Z
DESCRIPTION:Topic: TBD\n\nSpeakers: Rahul Ilango\n\nAffiliation: Massachuse
tts Institute of Technology\n\n
DTSTART:20220307T161500Z
DTEND:20220307T171500Z
LAST-MODIFIED:20211027T174739Z
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-503
END:VEVENT
BEGIN:VEVENT
UID:30333366-3036-4235-b361-653836333664
DTSTAMP:20220123T174849Z
CREATED:20211209T214609Z
DESCRIPTION:Topic: To Be Announced\n\nSpeakers: Paul Nelson\n\nAffiliation:
Eidgenössische Technische Hochschule Zürich\; von Neumann Fellow\, School
of Mathematics\n\n
DTSTART:20220307T190000Z
DTEND:20220307T200000Z
LAST-MODIFIED:20211215T194039Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Members’ Colloquium
URL:https://www.ias.edu/math/events/members-colloquium-27
END:VEVENT
BEGIN:VEVENT
UID:30366235-3264-4539-a639-313162666137
DTSTAMP:20220123T174849Z
CREATED:20211210T001958Z
DESCRIPTION:Topic: To Be Announced\n\n
DTSTART:20220307T210000Z
DTEND:20220307T223000Z
LAST-MODIFIED:20211210T002006Z
LOCATION:
SUMMARY:Joint IAS/Princeton University Symplectic Geometry Seminar
URL:https://www.ias.edu/math/events/joint-iasprinceton-university-symplecti
c-geometry-seminar-183
END:VEVENT
BEGIN:VEVENT
UID:63613534-6635-4637-b530-383661343630
DTSTAMP:20220123T174849Z
CREATED:20211210T162317Z
DESCRIPTION:Topic: To Be Announced\n\n
DTSTART:20220308T153000Z
DTEND:20220308T173000Z
LAST-MODIFIED:20211210T162325Z
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-501
END:VEVENT
BEGIN:VEVENT
UID:33313934-3165-4234-b164-663936303962
DTSTAMP:20220123T174849Z
CREATED:20211209T234433Z
DESCRIPTION:Topic: To Be Announced\n\n
DTSTART:20220308T190000Z
DTEND:20220308T200000Z
LAST-MODIFIED:20211209T234440Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Seminar in Analysis and Geometry
URL:https://www.ias.edu/math/events/seminar-analysis-and-geometry-17
END:VEVENT
BEGIN:VEVENT
UID:62306562-3562-4538-b961-663637643361
DTSTAMP:20220123T174849Z
CREATED:20211209T234846Z
DESCRIPTION:Topic: To Be Announced\n\n
DTSTART:20220309T160000Z
DTEND:20220309T171500Z
LAST-MODIFIED:20211209T234853Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Arithmetic Groups
URL:https://www.ias.edu/math/events/arithmetic-groups-18
END:VEVENT
BEGIN:VEVENT
UID:65343735-3435-4263-a639-323634366138
DTSTAMP:20220123T174849Z
CREATED:20211209T233755Z
DESCRIPTION:Topic: To Be Announced\n\n
DTSTART:20220309T190000Z
DTEND:20220309T210000Z
LAST-MODIFIED:20220120T203900Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Topics in Geometry
URL:https://www.ias.edu/math/events/topics-geometry-5
END:VEVENT
BEGIN:VEVENT
UID:35383264-3836-4137-a366-393033346232
DTSTAMP:20220123T174849Z
CREATED:20220106T155822Z
DESCRIPTION:Topic: To Be Announced\n\n
DTSTART:20220309T230000Z
DTEND:20220310T010000Z
LAST-MODIFIED:20220119T224932Z
LOCATION:Birch Garden\, Simons Hall
SUMMARY:Mathematical Conversations
URL:https://www.ias.edu/math/events/mathematical-conversations-232
END:VEVENT
BEGIN:VEVENT
UID:62363631-6365-4265-b234-663863313837
DTSTAMP:20220123T174849Z
CREATED:20211210T195418Z
DESCRIPTION:
DTSTART:20220310T150000Z
DTEND:20220310T170000Z
LAST-MODIFIED:20211210T195426Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Floer Learning Seminar
URL:https://www.ias.edu/math/events/floer-learning-seminar-13
END:VEVENT
BEGIN:VEVENT
UID:66333431-6337-4339-b431-643562653362
DTSTAMP:20220123T174849Z
CREATED:20211209T221809Z
DESCRIPTION:Topic: To Be Announced\n\n
DTSTART:20220310T190000Z
DTEND:20220310T210000Z
LAST-MODIFIED:20220120T205653Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Topics in Analysis
URL:https://www.ias.edu/math/events/topics-analysis-5
END:VEVENT
BEGIN:VEVENT
UID:30343161-3633-4364-b833-386636613836
DTSTAMP:20220123T174849Z
CREATED:20211209T220647Z
DESCRIPTION:Topic: To Be Announced\n\n
DTSTART:20220310T213000Z
DTEND:20220310T223000Z
LAST-MODIFIED:20211209T220655Z
LOCATION:
SUMMARY:Joint IAS/Princeton University Number Theory Seminar
URL:https://www.ias.edu/math/events/joint-iasprinceton-university-number-th
eory-seminar-475
END:VEVENT
BEGIN:VEVENT
UID:31323438-6438-4966-b637-376531303238
DTSTAMP:20220123T174849Z
CREATED:20211209T235343Z
DESCRIPTION:Topic: To Be Announced\n\n
DTSTART:20220311T141500Z
DTEND:20220311T154500Z
LAST-MODIFIED:20211209T235351Z
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-76
END:VEVENT
BEGIN:VEVENT
UID:31653465-6633-4831-a463-386232626663
DTSTAMP:20220123T174849Z
CREATED:20211027T174758Z
DESCRIPTION:Topic: TBD\n\nSpeakers: Gal Yona\n\nAffiliation: Weizmann Insti
tute\n\n
DTSTART:20220314T151500Z
DTEND:20220314T161500Z
LAST-MODIFIED:20211027T175039Z
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-504
END:VEVENT
BEGIN:VEVENT
UID:31323136-6565-4230-a537-333330343430
DTSTAMP:20220123T174849Z
CREATED:20211103T174124Z
DESCRIPTION:Topic: Spectral statistics of random matrices and random graphs
\n\nSpeakers: Horng-Tzer Yau\n\nAffiliation: Harvard University\n\n
DTSTART:20220314T180000Z
DTEND:20220314T190000Z
LAST-MODIFIED:20220105T184314Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Marston Morse Lectures
URL:https://www.ias.edu/math/events/marston-morse-lectures-100
END:VEVENT
BEGIN:VEVENT
UID:30643865-3163-4665-b937-656666373061
DTSTAMP:20220123T174849Z
CREATED:20211209T214622Z
DESCRIPTION:Topic: No seminar: Morse lectures\n\n
DTSTART:20220314T180000Z
DTEND:20220314T190000Z
LAST-MODIFIED:20211215T194059Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Members’ Colloquium
URL:https://www.ias.edu/math/events/members-colloquium-28
END:VEVENT
BEGIN:VEVENT
UID:35313834-3233-4262-b362-366537303131
DTSTAMP:20220123T174849Z
CREATED:20211210T002012Z
DESCRIPTION:Topic: To Be Announced\n\n
DTSTART:20220314T200000Z
DTEND:20220314T213000Z
LAST-MODIFIED:20211210T002020Z
LOCATION:
SUMMARY:Joint IAS/Princeton University Symplectic Geometry Seminar
URL:https://www.ias.edu/math/events/joint-iasprinceton-university-symplecti
c-geometry-seminar-184
END:VEVENT
BEGIN:VEVENT
UID:31353231-6137-4733-a130-373536646635
DTSTAMP:20220123T174849Z
CREATED:20211210T162332Z
DESCRIPTION:Topic: To Be Announced\n\n
DTSTART:20220315T143000Z
DTEND:20220315T163000Z
LAST-MODIFIED:20211210T162339Z
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-502
END:VEVENT
BEGIN:VEVENT
UID:61343033-6238-4162-b333-336162316232
DTSTAMP:20220123T174849Z
CREATED:20211209T234446Z
DESCRIPTION:Topic: To Be Announced\n\n
DTSTART:20220315T180000Z
DTEND:20220315T190000Z
LAST-MODIFIED:20211209T234452Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Seminar in Analysis and Geometry
URL:https://www.ias.edu/math/events/seminar-analysis-and-geometry-18
END:VEVENT
BEGIN:VEVENT
UID:35393536-3132-4266-b738-313066643136
DTSTAMP:20220123T174849Z
CREATED:20211209T234859Z
DESCRIPTION:Topic: To Be Announced\n\n
DTSTART:20220316T150000Z
DTEND:20220316T161500Z
LAST-MODIFIED:20211209T234905Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Arithmetic Groups
URL:https://www.ias.edu/math/events/arithmetic-groups-19
END:VEVENT
BEGIN:VEVENT
UID:38363334-3836-4737-a266-323031646564
DTSTAMP:20220123T174849Z
CREATED:20211103T174606Z
DESCRIPTION:Topic: Matrix Brownian motions and random spectral dynamics \n
\nSpeakers: Horng-Tzer Yau\n\nAffiliation: Harvard University\n\n
DTSTART:20220316T180000Z
DTEND:20220316T190000Z
LAST-MODIFIED:20220105T184342Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Marston Morse Lectures
URL:https://www.ias.edu/math/events/marston-morse-lectures-102
END:VEVENT
BEGIN:VEVENT
UID:31613165-3737-4438-b338-663437633234
DTSTAMP:20220123T174849Z
CREATED:20211209T233809Z
DESCRIPTION:Topic: To Be Announced\n\n
DTSTART:20220316T180000Z
DTEND:20220316T200000Z
LAST-MODIFIED:20220120T203918Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Topics in Geometry
URL:https://www.ias.edu/math/events/topics-geometry-6
END:VEVENT
BEGIN:VEVENT
UID:66353961-3963-4331-b561-303833353036
DTSTAMP:20220123T174849Z
CREATED:20220106T155835Z
DESCRIPTION:Topic: To Be Announced\n\n
DTSTART:20220316T220000Z
DTEND:20220317T000000Z
LAST-MODIFIED:20220119T224952Z
LOCATION:Birch Garden\, Simons Hall
SUMMARY:Mathematical Conversations
URL:https://www.ias.edu/math/events/mathematical-conversations-233
END:VEVENT
BEGIN:VEVENT
UID:30323131-3566-4134-b364-343834376335
DTSTAMP:20220123T174849Z
CREATED:20211210T195432Z
DESCRIPTION:
DTSTART:20220317T140000Z
DTEND:20220317T160000Z
LAST-MODIFIED:20211210T195439Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Floer Learning Seminar
URL:https://www.ias.edu/math/events/floer-learning-seminar-14
END:VEVENT
BEGIN:VEVENT
UID:38663836-3533-4336-b361-666562313636
DTSTAMP:20220123T174849Z
CREATED:20211209T221823Z
DESCRIPTION:Topic: To Be Announced\n\n
DTSTART:20220317T180000Z
DTEND:20220317T200000Z
LAST-MODIFIED:20220120T205711Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Topics in Analysis
URL:https://www.ias.edu/math/events/topics-analysis-6
END:VEVENT
BEGIN:VEVENT
UID:30323637-3931-4632-b861-313065303132
DTSTAMP:20220123T174849Z
CREATED:20211103T174429Z
DESCRIPTION:Topic: Quantum diffusions and random band matrices\n\nSpeakers:
Horng-Tzer Yau\n\nAffiliation: Harvard University\n\n
DTSTART:20220317T180000Z
DTEND:20220317T190000Z
LAST-MODIFIED:20220119T131135Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Marston Morse Lectures
URL:https://www.ias.edu/math/events/marston-morse-lectures-101
END:VEVENT
BEGIN:VEVENT
UID:66396261-3362-4239-b633-343136393831
DTSTAMP:20220123T174849Z
CREATED:20211209T220701Z
DESCRIPTION:Topic: To Be Announced\n\n
DTSTART:20220317T203000Z
DTEND:20220317T213000Z
LAST-MODIFIED:20211209T220710Z
LOCATION:
SUMMARY:Joint IAS/Princeton University Number Theory Seminar
URL:https://www.ias.edu/math/events/joint-iasprinceton-university-number-th
eory-seminar-476
END:VEVENT
BEGIN:VEVENT
UID:62666362-6364-4133-a538-326265353634
DTSTAMP:20220123T174849Z
CREATED:20211209T235357Z
DESCRIPTION:Topic: To Be Announced\n\n
DTSTART:20220318T131500Z
DTEND:20220318T144500Z
LAST-MODIFIED:20211209T235404Z
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-77
END:VEVENT
BEGIN:VEVENT
UID:36633535-6637-4662-b938-376630653964
DTSTAMP:20220123T174849Z
CREATED:20211027T175334Z
DESCRIPTION:Topic: TBD\n\nSpeakers: Vijay V. Vazirani\n\nAffiliation: Unive
rsity of California Irvine\n\n
DTSTART:20220321T151500Z
DTEND:20220321T161500Z
LAST-MODIFIED:20211027T175715Z
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-505
END:VEVENT
BEGIN:VEVENT
UID:61366639-3138-4937-b232-326564353631
DTSTAMP:20220123T174849Z
CREATED:20211209T214636Z
DESCRIPTION:Topic: To Be Announced\n\nSpeakers: Dallas Albritton\n\nAffilia
tion: Member\, School of Mathematics\n\n
DTSTART:20220321T180000Z
DTEND:20220321T190000Z
LAST-MODIFIED:20220106T153928Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Members’ Colloquium
URL:https://www.ias.edu/math/events/members-colloquium-29
END:VEVENT
BEGIN:VEVENT
UID:36343535-3736-4835-a331-366466373638
DTSTAMP:20220123T174849Z
CREATED:20211210T002026Z
DESCRIPTION:Topic: To Be Announced\n\n
DTSTART:20220321T200000Z
DTEND:20220321T213000Z
LAST-MODIFIED:20211210T002034Z
LOCATION:
SUMMARY:Joint IAS/Princeton University Symplectic Geometry Seminar
URL:https://www.ias.edu/math/events/joint-iasprinceton-university-symplecti
c-geometry-seminar-185
END:VEVENT
BEGIN:VEVENT
UID:31353136-3032-4131-b562-376630303134
DTSTAMP:20220123T174849Z
CREATED:20211210T162345Z
DESCRIPTION:Topic: To Be Announced\n\n
DTSTART:20220322T143000Z
DTEND:20220322T163000Z
LAST-MODIFIED:20211210T162353Z
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-503
END:VEVENT
BEGIN:VEVENT
UID:37353330-6434-4238-a165-623030646635
DTSTAMP:20220123T174849Z
CREATED:20211209T234459Z
DESCRIPTION:Topic: To Be Announced\n\n
DTSTART:20220322T180000Z
DTEND:20220322T190000Z
LAST-MODIFIED:20211209T234507Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Seminar in Analysis and Geometry
URL:https://www.ias.edu/math/events/seminar-analysis-and-geometry-19
END:VEVENT
BEGIN:VEVENT
UID:64633832-3033-4335-b738-303165316332
DTSTAMP:20220123T174849Z
CREATED:20211209T234912Z
DESCRIPTION:Topic: To Be Announced\n\n
DTSTART:20220323T150000Z
DTEND:20220323T161500Z
LAST-MODIFIED:20211209T234919Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Arithmetic Groups
URL:https://www.ias.edu/math/events/arithmetic-groups-20
END:VEVENT
BEGIN:VEVENT
UID:66653632-6361-4334-b632-633839646366
DTSTAMP:20220123T174849Z
CREATED:20211209T233823Z
DESCRIPTION:Topic: To Be Announced\n\n
DTSTART:20220323T180000Z
DTEND:20220323T200000Z
LAST-MODIFIED:20220120T203939Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Topics in Geometry
URL:https://www.ias.edu/math/events/topics-geometry-7
END:VEVENT
BEGIN:VEVENT
UID:30366564-3463-4463-a333-646630346231
DTSTAMP:20220123T174849Z
CREATED:20220106T155848Z
DESCRIPTION:Topic: To Be Announced\n\n
DTSTART:20220323T220000Z
DTEND:20220324T000000Z
LAST-MODIFIED:20220119T225011Z
LOCATION:Birch Garden\, Simons Hall
SUMMARY:Mathematical Conversations
URL:https://www.ias.edu/math/events/mathematical-conversations-234
END:VEVENT
BEGIN:VEVENT
UID:30303435-3566-4962-b333-663864373832
DTSTAMP:20220123T174849Z
CREATED:20211210T195445Z
DESCRIPTION:
DTSTART:20220324T140000Z
DTEND:20220324T160000Z
LAST-MODIFIED:20211210T195452Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Floer Learning Seminar
URL:https://www.ias.edu/math/events/floer-learning-seminar-15
END:VEVENT
BEGIN:VEVENT
UID:38613463-3862-4261-b666-343731656636
DTSTAMP:20220123T174849Z
CREATED:20211209T221837Z
DESCRIPTION:Topic: To Be Announced\n\n
DTSTART:20220324T180000Z
DTEND:20220324T200000Z
LAST-MODIFIED:20220120T205730Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Topics in Analysis
URL:https://www.ias.edu/math/events/topics-analysis-7
END:VEVENT
BEGIN:VEVENT
UID:35636561-3639-4932-b161-653033323331
DTSTAMP:20220123T174849Z
CREATED:20211209T220717Z
DESCRIPTION:Topic: To Be Announced\n\n
DTSTART:20220324T203000Z
DTEND:20220324T213000Z
LAST-MODIFIED:20211209T220723Z
LOCATION:
SUMMARY:Joint IAS/Princeton University Number Theory Seminar
URL:https://www.ias.edu/math/events/joint-iasprinceton-university-number-th
eory-seminar-477
END:VEVENT
BEGIN:VEVENT
UID:39666333-3037-4036-b964-626264616161
DTSTAMP:20220123T174849Z
CREATED:20211209T235410Z
DESCRIPTION:Topic: To Be Announced\n\n
DTSTART:20220325T131500Z
DTEND:20220325T144500Z
LAST-MODIFIED:20211209T235416Z
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-78
END:VEVENT
BEGIN:VEVENT
UID:63326466-6435-4065-b365-633631373933
DTSTAMP:20220123T174849Z
CREATED:20211027T175828Z
DESCRIPTION:Topic: TBD\n\nSpeakers: Quentin Dubroff\n\nAffiliation: Rutgers
University\n\n
DTSTART:20220328T151500Z
DTEND:20220328T161500Z
LAST-MODIFIED:20211027T180007Z
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-506
END:VEVENT
BEGIN:VEVENT
UID:32396435-6138-4335-b635-333335333037
DTSTAMP:20220123T174849Z
CREATED:20211209T214650Z
DESCRIPTION:Topic: To Be Announced\n\nSpeakers: László Székelyhidi\n\nAffil
iation: University of Leipzig\; Distinguished Visiting Professor\, School
of Mathematics\n\n
DTSTART:20220328T180000Z
DTEND:20220328T190000Z
LAST-MODIFIED:20211222T192109Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Members’ Colloquium
URL:https://www.ias.edu/math/events/members-colloquium-30
END:VEVENT
BEGIN:VEVENT
UID:32653362-6438-4436-a362-336161376132
DTSTAMP:20220123T174849Z
CREATED:20211210T002040Z
DESCRIPTION:Topic: To Be Announced\n\n
DTSTART:20220328T200000Z
DTEND:20220328T213000Z
LAST-MODIFIED:20211210T002047Z
LOCATION:
SUMMARY:Joint IAS/Princeton University Symplectic Geometry Seminar
URL:https://www.ias.edu/math/events/joint-iasprinceton-university-symplecti
c-geometry-seminar-186
END:VEVENT
BEGIN:VEVENT
UID:39656635-6633-4139-b039-643866363337
DTSTAMP:20220123T174849Z
CREATED:20211210T162400Z
DESCRIPTION:Topic: To Be Announced\n\n
DTSTART:20220329T143000Z
DTEND:20220329T163000Z
LAST-MODIFIED:20211210T162407Z
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-504
END:VEVENT
BEGIN:VEVENT
UID:37636664-3833-4163-b963-653836306132
DTSTAMP:20220123T174849Z
CREATED:20211209T234512Z
DESCRIPTION:Topic: To Be Announced\n\n
DTSTART:20220329T180000Z
DTEND:20220329T190000Z
LAST-MODIFIED:20211209T234519Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Seminar in Analysis and Geometry
URL:https://www.ias.edu/math/events/seminar-analysis-and-geometry-20
END:VEVENT
BEGIN:VEVENT
UID:31313865-6134-4162-a534-313365346533
DTSTAMP:20220123T174849Z
CREATED:20211209T234926Z
DESCRIPTION:Topic: To Be Announced\n\n
DTSTART:20220330T150000Z
DTEND:20220330T161500Z
LAST-MODIFIED:20211209T234935Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Arithmetic Groups
URL:https://www.ias.edu/math/events/arithmetic-groups-21
END:VEVENT
BEGIN:VEVENT
UID:38653835-3539-4333-b530-333639353231
DTSTAMP:20220123T174849Z
CREATED:20211209T233836Z
DESCRIPTION:Topic: To Be Announced\n\n
DTSTART:20220330T180000Z
DTEND:20220330T200000Z
LAST-MODIFIED:20220120T203959Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Topics in Geometry
URL:https://www.ias.edu/math/events/topics-geometry-8
END:VEVENT
BEGIN:VEVENT
UID:61643532-6430-4466-b965-316138633538
DTSTAMP:20220123T174849Z
CREATED:20220106T155902Z
DESCRIPTION:Topic: To Be Announced\n\n
DTSTART:20220330T220000Z
DTEND:20220331T000000Z
LAST-MODIFIED:20220119T225030Z
LOCATION:Birch Garden\, Simons Hall
SUMMARY:Mathematical Conversations
URL:https://www.ias.edu/math/events/mathematical-conversations-235
END:VEVENT
BEGIN:VEVENT
UID:64663031-6334-4535-b934-663165616563
DTSTAMP:20220123T174849Z
CREATED:20211210T195458Z
DESCRIPTION:
DTSTART:20220331T140000Z
DTEND:20220331T160000Z
LAST-MODIFIED:20211210T195506Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Floer Learning Seminar
URL:https://www.ias.edu/math/events/floer-learning-seminar-16
END:VEVENT
BEGIN:VEVENT
UID:34366665-3130-4366-b135-303535353338
DTSTAMP:20220123T174849Z
CREATED:20211209T221851Z
DESCRIPTION:Topic: To Be Announced\n\n
DTSTART:20220331T180000Z
DTEND:20220331T200000Z
LAST-MODIFIED:20220120T205748Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Topics in Analysis
URL:https://www.ias.edu/math/events/topics-analysis-8
END:VEVENT
BEGIN:VEVENT
UID:62323530-3562-4430-b231-376165653564
DTSTAMP:20220123T174849Z
CREATED:20211209T220730Z
DESCRIPTION:Topic: To Be Announced\n\n
DTSTART:20220331T203000Z
DTEND:20220331T213000Z
LAST-MODIFIED:20211209T220736Z
LOCATION:
SUMMARY:Joint IAS/Princeton University Number Theory Seminar
URL:https://www.ias.edu/math/events/joint-iasprinceton-university-number-th
eory-seminar-478
END:VEVENT
BEGIN:VEVENT
UID:62626332-6266-4238-b562-666564363761
DTSTAMP:20220123T174849Z
CREATED:20211209T235422Z
DESCRIPTION:Topic: To Be Announced\n\n
DTSTART:20220401T131500Z
DTEND:20220401T144500Z
LAST-MODIFIED:20211209T235430Z
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-79
END:VEVENT
BEGIN:VEVENT
UID:63616465-6464-4462-a262-663563383338
DTSTAMP:20220123T174849Z
CREATED:20211027T180023Z
DESCRIPTION:Topic: TBD\n\nSpeakers: Nikhil Srivastava\n\nAffiliation: Unive
rsity of California\, Berkeley\n\n
DTSTART:20220404T151500Z
DTEND:20220404T161500Z
LAST-MODIFIED:20211027T180207Z
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-507
END:VEVENT
BEGIN:VEVENT
UID:64353336-3938-4363-a665-656463386238
DTSTAMP:20220123T174849Z
CREATED:20211209T214703Z
DESCRIPTION:Topic: To Be Announced\n\n
DTSTART:20220404T180000Z
DTEND:20220404T190000Z
LAST-MODIFIED:20211209T214711Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Members’ Colloquium
URL:https://www.ias.edu/math/events/members-colloquium-31
END:VEVENT
BEGIN:VEVENT
UID:36383432-3833-4566-a135-303135363635
DTSTAMP:20220123T174849Z
CREATED:20211210T002053Z
DESCRIPTION:Topic: To Be Announced\n\n
DTSTART:20220404T200000Z
DTEND:20220404T213000Z
LAST-MODIFIED:20211210T002100Z
LOCATION:
SUMMARY:Joint IAS/Princeton University Symplectic Geometry Seminar
URL:https://www.ias.edu/math/events/joint-iasprinceton-university-symplecti
c-geometry-seminar-187
END:VEVENT
BEGIN:VEVENT
UID:66373333-6531-4736-b639-633838396437
DTSTAMP:20220123T174849Z
CREATED:20211210T162413Z
DESCRIPTION:Topic: To Be Announced\n\n
DTSTART:20220405T143000Z
DTEND:20220405T163000Z
LAST-MODIFIED:20211210T162422Z
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-505
END:VEVENT
BEGIN:VEVENT
UID:35376531-3763-4063-a539-643532303232
DTSTAMP:20220123T174849Z
CREATED:20211209T234525Z
DESCRIPTION:Topic: To Be Announced\n\n
DTSTART:20220405T180000Z
DTEND:20220405T190000Z
LAST-MODIFIED:20211209T234531Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Seminar in Analysis and Geometry
URL:https://www.ias.edu/math/events/seminar-analysis-and-geometry-21
END:VEVENT
BEGIN:VEVENT
UID:61656135-6564-4137-b835-343363643131
DTSTAMP:20220123T174849Z
CREATED:20211209T234940Z
DESCRIPTION:Topic: To Be Announced\n\n
DTSTART:20220406T150000Z
DTEND:20220406T161500Z
LAST-MODIFIED:20220119T220904Z
LOCATION:Wolfensohn Hall and Remote Access
SUMMARY:Arithmetic Groups
URL:https://www.ias.edu/math/events/arithmetic-groups-22
END:VEVENT
BEGIN:VEVENT
UID:30356634-3865-4534-a665-633462326531
DTSTAMP:20220123T174849Z
CREATED:20220106T155914Z
DESCRIPTION:Topic: To Be Announced\n\n
DTSTART:20220406T220000Z
DTEND:20220407T000000Z
LAST-MODIFIED:20220119T225052Z
LOCATION:Birch Garden\, Simons Hall
SUMMARY:Mathematical Conversations
URL:https://www.ias.edu/math/events/mathematical-conversations-236
END:VEVENT
BEGIN:VEVENT
UID:62663739-3632-4238-b934-623735363566
DTSTAMP:20220123T174849Z
CREATED:20211210T195512Z
DESCRIPTION:
DTSTART:20220407T140000Z
DTEND:20220407T160000Z
LAST-MODIFIED:20211210T195519Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Floer Learning Seminar
URL:https://www.ias.edu/math/events/floer-learning-seminar-17
END:VEVENT
BEGIN:VEVENT
UID:31636232-3935-4131-a339-653765306438
DTSTAMP:20220123T174849Z
CREATED:20211209T220743Z
DESCRIPTION:Topic: To Be Announced\n\n
DTSTART:20220407T203000Z
DTEND:20220407T213000Z
LAST-MODIFIED:20211209T220751Z
LOCATION:
SUMMARY:Joint IAS/Princeton University Number Theory Seminar
URL:https://www.ias.edu/math/events/joint-iasprinceton-university-number-th
eory-seminar-479
END:VEVENT
BEGIN:VEVENT
UID:36666531-3065-4666-b431-656639313535
DTSTAMP:20220123T174849Z
CREATED:20211209T235436Z
DESCRIPTION:Topic: To Be Announced\n\n
DTSTART:20220408T131500Z
DTEND:20220408T144500Z
LAST-MODIFIED:20211209T235443Z
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-80
END:VEVENT
BEGIN:VEVENT
UID:31663834-3135-4339-b065-656531653531
DTSTAMP:20220123T174849Z
CREATED:20200110T181550Z
DESCRIPTION:
DTSTART:20220408T220000Z
DTEND:20220408T220000Z
LAST-MODIFIED:20210104T025926Z
LOCATION:
SUMMARY:IAS School of Mathematics Term II Ends
URL:https://www.ias.edu/math/events/ias-school-mathematics-term-ii-ends-0
END:VEVENT
BEGIN:VEVENT
UID:30663363-3963-4163-a636-323632326635
DTSTAMP:20220123T174849Z
CREATED:20211027T180248Z
DESCRIPTION:Topic: TBD\n\nSpeakers: Tim Roughgarden\n\nAffiliation: Columbi
a University\n\n
DTSTART:20220411T151500Z
DTEND:20220411T161500Z
LAST-MODIFIED:20211027T180444Z
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-508
END:VEVENT
BEGIN:VEVENT
UID:37343238-3132-4563-a133-383061353363
DTSTAMP:20220123T174849Z
CREATED:20211210T162428Z
DESCRIPTION:Topic: To Be Announced\n\n
DTSTART:20220412T143000Z
DTEND:20220412T163000Z
LAST-MODIFIED:20211210T162435Z
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-506
END:VEVENT
BEGIN:VEVENT
UID:30323236-3236-4131-b439-313330643137
DTSTAMP:20220123T174849Z
CREATED:20211209T220758Z
DESCRIPTION:Topic: To Be Announced\n\n
DTSTART:20220414T203000Z
DTEND:20220414T213000Z
LAST-MODIFIED:20211209T220805Z
LOCATION:
SUMMARY:Joint IAS/Princeton University Number Theory Seminar
URL:https://www.ias.edu/math/events/joint-iasprinceton-university-number-th
eory-seminar-480
END:VEVENT
BEGIN:VEVENT
UID:35303063-6135-4264-b237-623134373730
DTSTAMP:20220123T174849Z
CREATED:20211209T235449Z
DESCRIPTION:Topic: To Be Announced\n\n
DTSTART:20220415T131500Z
DTEND:20220415T144500Z
LAST-MODIFIED:20211209T235457Z
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-81
END:VEVENT
BEGIN:VEVENT
UID:63363131-3835-4539-b730-343962323561
DTSTAMP:20220123T174849Z
CREATED:20211209T220811Z
DESCRIPTION:Topic: To Be Announced\n\n
DTSTART:20220421T203000Z
DTEND:20220421T213000Z
LAST-MODIFIED:20211209T220819Z
LOCATION:
SUMMARY:Joint IAS/Princeton University Number Theory Seminar
URL:https://www.ias.edu/math/events/joint-iasprinceton-university-number-th
eory-seminar-481
END:VEVENT
BEGIN:VEVENT
UID:35386434-3533-4236-a335-633061623364
DTSTAMP:20220123T174849Z
CREATED:20211209T235503Z
DESCRIPTION:Topic: To Be Announced\n\n
DTSTART:20220422T131500Z
DTEND:20220422T144500Z
LAST-MODIFIED:20211209T235510Z
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-82
END:VEVENT
BEGIN:VEVENT
UID:65336530-3464-4665-a635-366534323839
DTSTAMP:20220123T174849Z
CREATED:20211209T220826Z
DESCRIPTION:Topic: To Be Announced\n\n
DTSTART:20220428T203000Z
DTEND:20220428T213000Z
LAST-MODIFIED:20211209T220834Z
LOCATION:
SUMMARY:Joint IAS/Princeton University Number Theory Seminar
URL:https://www.ias.edu/math/events/joint-iasprinceton-university-number-th
eory-seminar-482
END:VEVENT
BEGIN:VEVENT
UID:30666462-3666-4537-b838-336239623638
DTSTAMP:20220123T174849Z
CREATED:20211209T235515Z
DESCRIPTION:Topic: To Be Announced\n\n
DTSTART:20220429T131500Z
DTEND:20220429T144500Z
LAST-MODIFIED:20211209T235523Z
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-83
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BEGIN:VEVENT
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DTSTAMP:20220123T174849Z
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DESCRIPTION:Topic: To Be Announced\n\n
DTSTART:20220505T203000Z
DTEND:20220505T213000Z
LAST-MODIFIED:20211209T220847Z
LOCATION:
SUMMARY:Joint IAS/Princeton University Number Theory Seminar
URL:https://www.ias.edu/math/events/joint-iasprinceton-university-number-th
eory-seminar-483
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UID:33343032-6631-4364-b338-623936353561
DTSTAMP:20220123T174849Z
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DESCRIPTION:Topic: To Be Announced\n\n
DTSTART:20220506T131500Z
DTEND:20220506T144500Z
LAST-MODIFIED:20211209T235537Z
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
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DTSTAMP:20220123T174849Z
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DESCRIPTION:Topic: To Be Announced\n\n
DTSTART:20220512T203000Z
DTEND:20220512T213000Z
LAST-MODIFIED:20211209T220901Z
LOCATION:
SUMMARY:Joint IAS/Princeton University Number Theory Seminar
URL:https://www.ias.edu/math/events/joint-iasprinceton-university-number-th
eory-seminar-484
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UID:65646434-3631-4639-a261-336237366239
DTSTAMP:20220123T174849Z
CREATED:20211209T235544Z
DESCRIPTION:Topic: To Be Announced\n\n
DTSTART:20220513T131500Z
DTEND:20220513T144500Z
LAST-MODIFIED:20211209T235552Z
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
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UID:38383963-6335-4561-b737-383832636534
DTSTAMP:20220123T174849Z
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DESCRIPTION:Topic: To Be Announced\n\n
DTSTART:20220520T131500Z
DTEND:20220520T144500Z
LAST-MODIFIED:20211209T235605Z
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
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DTSTAMP:20220123T174849Z
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DESCRIPTION:Topic: To Be Announced\n\n
DTSTART:20220527T131500Z
DTEND:20220527T144500Z
LAST-MODIFIED:20211209T235619Z
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
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UID:66393462-3235-4234-a666-376662326362
DTSTAMP:20220123T174849Z
CREATED:20211209T235624Z
DESCRIPTION:Topic: To Be Announced\n\n
DTSTART:20220603T131500Z
DTEND:20220603T144500Z
LAST-MODIFIED:20211209T235631Z
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
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DTSTAMP:20220123T174849Z
CREATED:20211209T235637Z
DESCRIPTION:Topic: To Be Announced\n\n
DTSTART:20220610T131500Z
DTEND:20220610T144500Z
LAST-MODIFIED:20211209T235644Z
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
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DTSTAMP:20220123T174849Z
CREATED:20211209T235650Z
DESCRIPTION:Topic: To Be Announced\n\n
DTSTART:20220617T131500Z
DTEND:20220617T144500Z
LAST-MODIFIED:20211209T235658Z
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
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DTSTAMP:20220123T174849Z
CREATED:20211209T235704Z
DESCRIPTION:Topic: To Be Announced\n\n
DTSTART:20220624T131500Z
DTEND:20220624T144500Z
LAST-MODIFIED:20211209T235711Z
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
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UID:39653133-6131-4135-b962-663966663234
DTSTAMP:20220123T174849Z
CREATED:20211209T235718Z
DESCRIPTION:Topic: To Be Announced\n\n
DTSTART:20220701T131500Z
DTEND:20220701T144500Z
LAST-MODIFIED:20211209T235725Z
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
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DTSTAMP:20220123T174849Z
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DESCRIPTION:Topic: To Be Announced\n\n
DTSTART:20220708T131500Z
DTEND:20220708T144500Z
LAST-MODIFIED:20211209T235738Z
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
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DESCRIPTION:Topic: To Be Announced\n\n
DTSTART:20220715T131500Z
DTEND:20220715T144500Z
LAST-MODIFIED:20211209T235750Z
LOCATION:Remote Access
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minar
URL:https://www.ias.edu/math/events/joint-iasprincetonmontrealparistel-aviv
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DTEND:20220919T130000Z
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SUMMARY:IAS School of Mathematics Term I Begins
URL:https://www.ias.edu/math/events/ias-school-mathematics-term-i-begins-1
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URL:https://www.ias.edu/math/events/ias-school-mathematics-term-ii-begins-1
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END:VCALENDAR