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UID:30376331-6639-4534-b066-663431306534
X-WR-TIMEZONE:UTC
X-WR-CALNAME:IAS Mathematics
BEGIN:VEVENT
UID:30313265-3131-4062-b962-303639363035
DTSTAMP:20230202T191213Z
CREATED:20221031T122149Z
DESCRIPTION:Topic: Higher Order Fourier Analysis in Finite Field Geometry\n
\nSpeakers: Tamar Ziegler\n\nAffiliation: Hebrew University\; Distinguishe
d Visiting Professor\, School of Mathematics
DTSTART:20221102T143000Z
DTEND:20221102T160000Z
LAST-MODIFIED:20221110T150848Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Special Year Learning Seminar
URL:https://www.ias.edu/math/events/special-year-learning-seminar-2
END:VEVENT
BEGIN:VEVENT
UID:35363663-3231-4731-a637-656330643034
DTSTAMP:20230202T191213Z
CREATED:20220907T141524Z
DESCRIPTION:Topic: Geometric Measure Theory on Non Smooth Spaces with Lower
Ricci Curvature Bounds\n\nSpeakers: Daniele Semola\n\nAffiliation: The Fi
elds Institute\, University of Toronto\n\nThere is a celebrated connection
between minimal (or constant mean\ncurvature) hypersurfaces and Ricci cur
vature in Riemannian Geometry\,\noften boiling down to the presence of a R
icci term in the second\nvariation formula for the area. The first goal of
the talk will be to\ndiscuss the validity of an analogous principle for n
on smooth metric\nmeasure spaces with Ricci bounded from below in syntheti
c sense. In\nthe second part\, I will illustrate some applications of Geom
etric\nMeasure Theory in ambient spaces with low regularity to classical\n
questions in Geometric Analysis on smooth Riemannian manifolds.\n\n
DTSTART:20221102T203000Z
DTEND:20221102T213000Z
LAST-MODIFIED:20221109T194934Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Analysis & Mathematical Physics
URL:https://www.ias.edu/math/events/analysis-mathematical-physics-1
END:VEVENT
BEGIN:VEVENT
UID:31373766-6462-4036-b965-643234393833
DTSTAMP:20230202T191213Z
CREATED:20220810T131025Z
DESCRIPTION:Topic: Information Geometry: What and Why\n\nSpeakers: Patrick
Shafto\n\nAffiliation: Rutgers University\, Newark\; Member\, School of Ma
thematics\n\nInformation geometry studies the mathematical properties of\n
probabilistic models. Classically\, we view the parameter space of a\nmode
l as a Riemannian manifold\, and use tools from differential\ngeometry to
study properties of the parameterized class of models. In\nthis talk\, I w
ill motivate why Information geometry is relevant /\nimportant and give a
few examples from recent research in machine\nlearning.
DTSTART:20221102T220000Z
DTEND:20221103T000000Z
LAST-MODIFIED:20221028T173122Z
LOCATION:Birch Garden\, Simons Hall
SUMMARY:Mathematical Conversations
URL:https://www.ias.edu/math/events/mathematical-conversations-243
END:VEVENT
BEGIN:VEVENT
UID:64336265-6237-4930-b239-663333366661
DTSTAMP:20230202T191213Z
CREATED:20220921T191139Z
DESCRIPTION:Topic: Verlinde Dimension Formula for the Space of Conformal Bl
ocks and the Moduli of G-bundles\n\nSpeakers: Shrawan Kumar\n\nAffiliation
: University of North Carolina\; Member\, School of Mathematics\n\nLet G b
e a simply-connected complex semisimple algebraic group and let\nC be a sm
ooth projective curve of any genus. Then\, the moduli space of\nsemistable
G-bundles on C admits so called determinant line bundles.\nE. Verlinde co
njectured a remarkable formula to calculate the\ndimension of the space of
generalized theta functions\, which is by\ndefinition the space of global
sections of a determinant line bundle.\nThis space is also identified wit
h the space of conformal blocks\narising in Conformal Field Theory\, which
is by definition the space\nof coinvariants in integrable highest weight
modules of affine\nKac-Moody Lie algebras. Various works notably by\nTsuc
hiya-Ueno-Yamada\, Kumar-Narasimhan Ramanathan\, Faltings\,\nBeauville-La
szlo\, Sorger and Teleman culminated into a proof of the\nVerlinde formula
.\n\nThe main aim of this course will be to give a complete and self\ncont
ained proof of this formula derived from the Propogation of\nVacua and th
e Factorization Theorem among others. The proof requires\ntechniques from
algebraic geometry\, geometric invariant theory\,\nrepresentation theory o
f affine Kac-Moody Lie algebras\, topology\, and\nLie algebra cohomology.
Some basic knowledge of algebraic geometry\nand representation theory of s
emisimple Lie algebras will be helpful\;\nbut not required. I will develop
the course from scratch recalling\nresults from different areas as we nee
d them.\n\nThe course will be based upon some parts of my book ‘Conformal
\nBlocks\, Generalized Theta Functions and the Verlinde Formula’\npublishe
d by the Cambridge Ubiversity Press this year. This course\nshould be suit
able for any one interested in interaction between\nalgebraic geometry\, r
epresentation theory\, topology and mathematical\nphysics.
DTSTART:20221103T141500Z
DTEND:20221103T160000Z
LAST-MODIFIED:20221207T193848Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Verlinde Dimension Formula
URL:https://www.ias.edu/math/events/verlinde-dimension-formula-1
END:VEVENT
BEGIN:VEVENT
UID:38336537-6234-4637-a332-663739636565
DTSTAMP:20230202T191213Z
CREATED:20220825T194113Z
DESCRIPTION:Topic: The Toda Lattice and the Viterbo Conjecture\n\nSpeakers:
Vinicius Gripp Barros Ramos\n\nAffiliation: Instituto de Matemática Pura
e Aplicada\; von Neumann Fellow\, School of Mathematics\n\nThe Toda lattic
e is one of the earliest examples of non-linear\ncompletely integrable sys
tems. Under a large deformation\, the\nHamiltonian flow can be seen to con
verge to a billiard flow in a\nsimplex. In the 1970s\, action-angle coordi
nates were computed for the\nstandard system using a non-canonical transfo
rmation and some spectral\ntheory. In this talk\, I will explain how to ad
apt these coordinates to\nthe situation to a large deformation and how thi
s leads to new\nexamples of symplectomorphisms of Lagrangian products with
toric\ndomains. In particular\, we find a sequence of Lagrangian products
\nwhose symplectic systolic ratio is one and we prove that they are\nsympl
ectomorphic to balls. This is joint work with Y. Ostrover and D.\nSepe.
DTSTART:20221103T200000Z
DTEND:20221103T210000Z
LAST-MODIFIED:20221101T145443Z
LOCATION:West Lecture Hall 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-193
END:VEVENT
BEGIN:VEVENT
UID:32326233-6266-4034-a632-623331636335
DTSTAMP:20230202T191213Z
CREATED:20220830T174854Z
DESCRIPTION:Topic: Applications of the Endoscopic Classification to Statist
ics of Cohomological Automorphic Representations on Unitary Groups\n\nSpea
kers: Rahul Dalal\n\nAffiliation: Johns Hopkins University\n\nConsider the
family of automorphic representations on some unitary\ngroup with fixed (
possibly non-tempered) cohomological representation\n$\pi_0$ at infinity a
nd level dividing some finite upper bound. We\ncompute statistics of this
family as the level restriction goes to\ninfinity. For unramified unitary
groups and a large class of $\pi_0$\,\nwe are able to compute the exact le
ading term for both counts of\nrepresentations and averages of Satake para
meters. We get bounds on\nour error term similar to previous work by Shin-
Templier that studied\nthe case of discrete series at infinity. We also di
scuss in-progress\ncomputations towards expected corollaries related to th
e Sarnak-Xue\ndensity conjecture\, average Sato-Tate equidistribution in f
amilies\,\nand growth of cohomology for towers of locally symmetric spaces
. \n\nThe main technical tool is an extension of an inductive argument tha
t\nwas originally developed by Taïbi to count unramified representations\n
on Sp and SO and used the endoscopic classification of representations\n(w
hich our case requires for non-quasisplit unitary groups). \n\nThis is joi
nt work with Mathilde Gerbelli-Gauthier
DTSTART:20221103T203000Z
DTEND:20221103T213000Z
LAST-MODIFIED:20221114T183800Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Joint IAS/PU Number Theory Seminar
URL:https://www.ias.edu/math/events/joint-iaspu-number-theory-seminar-5
END:VEVENT
BEGIN:VEVENT
UID:33656531-3566-4966-b863-663765346231
DTSTAMP:20230202T191213Z
CREATED:20220907T175738Z
DESCRIPTION:Topic: Lagrangian Cobordisms\, Enriched Knot Diagrams\, and Alg
ebraic Invariants\n\nSpeakers: Ipsita Datta\n\nAffiliation: Member\, Schoo
l of Mathematics\n\n We introduce new invariants to the existence of Lagra
ngian\ncobordisms in R^4. These are obtained by studying holomorphic disks
\nwith corners on Lagrangian tangles\, which are Lagrangian cobordisms\nwi
th flat\, immersed boundaries.\n\nWe develop appropriate sign conventions
and results to characterize\nboundary points of 1-dimensional moduli space
s with boundaries on\nLagrangian tangles. We then use these to define (SFT
-like) algebraic\nstructures that recover the previously described obstruc
tions.\n\nThis talk is based on my thesis work under the supervision of Y.
\nEliashberg and on work in progress joint with J. Sabloff.
DTSTART:20221104T131500Z
DTEND:20221104T144500Z
LAST-MODIFIED:20221109T192340Z
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-98
END:VEVENT
BEGIN:VEVENT
UID:36336566-3233-4430-a337-613539383733
DTSTAMP:20230202T191213Z
CREATED:20221020T153950Z
DESCRIPTION:Topic: Merkurjev's Theorem
DTSTART:20221104T170000Z
DTEND:20221104T193000Z
LAST-MODIFIED:20221104T180040Z
LOCATION:Rubenstein Commons\, Room #5
SUMMARY:Milnor Conjecture Learning Seminar
URL:https://www.ias.edu/math/events/milnor-conjecture-learning-seminar-3
END:VEVENT
BEGIN:VEVENT
UID:32313463-3165-4763-b433-326139333638
DTSTAMP:20230202T191213Z
CREATED:20221021T180223Z
DESCRIPTION:Topic: Twisted Recurrence in Dynamical Systems\n\nSpeakers: Jia
jie Zheng\n\nAffiliation: Brandeis University\n\nIn the study of some dyna
mical systems\, the limsup set of a sequence\nof measurable sets is often
of interest. The shrinking targets and\nrecurrence are two of the most com
monly studied problems that concern\nlimsup sets. However\, the zero-one l
aws for the shrinking targets and\nrecurrence are usually treated separate
ly and proved differently. In\nthis talk\, I will talk about twisted recur
rence\, which can\nspecialize into both shrinking targets and recurrence.
I will\nintroduce some known results about twisted recurrent sets\, includ
ing\ntheir zero-one laws and Hausdorff measures.
DTSTART:20221104T173000Z
DTEND:20221104T190000Z
LAST-MODIFIED:20221207T193940Z
LOCATION:Simonyi 101
SUMMARY:Special Year Informal Seminar
URL:https://www.ias.edu/math/events/special-year-informal-seminar
END:VEVENT
BEGIN:VEVENT
UID:39333333-6334-4565-b962-343630356634
DTSTAMP:20230202T191213Z
CREATED:20221026T143421Z
DESCRIPTION:
DTSTART:20221104T191520Z
DTEND:20221104T210000Z
LAST-MODIFIED:20221114T184500Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Reading Seminar on Alexandrov Geometry
URL:https://www.ias.edu/events/reading-seminar-alexandrov-geometry-0
END:VEVENT
BEGIN:VEVENT
UID:63656135-3134-4632-a438-386334363063
DTSTAMP:20230202T191213Z
CREATED:20220808T183140Z
DESCRIPTION:Topic: Smoothed Complexity of Local Max-Cut with Two Flips\n\nS
peakers: Xi Chen\n\nAffiliation: Columbia University\n\nMany algorithms an
d heuristics that work well in practice have poor\nperformance under the w
orst-case analysis\, due to delicate\npathological instances that one may
never encounter. To bridge this\ntheory-practice gap\, Spielman and Teng i
ntroduced the smoothed\nanalysis framework which can be viewed as a hybrid
of the classical\nworst-case and average-case analyses. Since then\, the
smoothed\nanalysis of algorithms and problems from combinatorial optimizat
ion\,\namong many other areas\, has been studied extensively.\n\nIn this t
alk\, we will review progress on the smoothed complexity of\nthe FLIP algo
rithm for local Max-Cut and binary Maximum Constraint\nSatisfaction Proble
ms. We will then discuss new results for the\nsituation when the algorithm
is allowed to make two flips in each\nstep.\n\nBased on joint work with C
henghao Guo\, Emmanouil-Vasileios\nVlatakis-Gkaragkounis\, Mihalis Yannaka
kis and Xinzhi Zhang
DTSTART:20221107T161500Z
DTEND:20221107T171500Z
LAST-MODIFIED:20221129T200125Z
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-520
END:VEVENT
BEGIN:VEVENT
UID:36366266-3066-4835-a131-643039326662
DTSTAMP:20230202T191213Z
CREATED:20220607T192343Z
DESCRIPTION:Topic: Simultaneous Small Fractional Parts of Polynomials\n\nSp
eakers: James Maynard\n\nAffiliation: Member\, School of Mathematics\n\nGi
ven several real numbers $\alpha_1\,...\,\alpha_k$\, how well can you\nsim
ultaneously approximate all of them by rationals which each have\nthe same
square number as a denominator? Schmidt gave a clever\niterative argument
which showed that this can be done moderately well.\n\nBy using a general
principle of 'little non-trivial additive structure\nin rationals' and so
me ideas from additive combinatorics and the\ngeometry of numbers\, I'll d
escribe how this can be improved to give a\nclose-to-optimal answer when $
k$ is large.
DTSTART:20221107T190000Z
DTEND:20221107T200000Z
LAST-MODIFIED:20221114T183224Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Hermann Weyl Lectures
URL:https://www.ias.edu/math/events/hermann-weyl-lectures-31
END:VEVENT
BEGIN:VEVENT
UID:63616561-6639-4031-a634-313730306134
DTSTAMP:20230202T191213Z
CREATED:20220825T195825Z
DESCRIPTION:Topic: Functoriality for Fukaya Categories of Very Affine Hyper
surfaces\n\nSpeakers: Maxim Jeffs\n\nAffiliation: Harvard University\n\nA
very affine hypersurface is the vanishing locus of a Laurent\npolynomial i
n a complex torus\; its complement is also a very affine\nhypersurface\, b
ut in two subtly-different ways. The (partially)\nwrapped Fukaya categorie
s of the hypersurface and its complement are\nclosely related: Auroux sket
ched the definitions of several new\nacceleration and restriction functors
between them. I'll explain how\nwe can define these functors in terms of
Liouville sectors and how\nthis implies conjectures of Auroux about their
mirror counterparts\,\nbuilding on work of Gammage-Shende. On the way\, I'
ll explain how the\ndifferent realizations of the complement lead to very
different Fukaya\ncategories\, related by a non-geometric equivalence medi
ated by derived\nKnorrer periodicity.
DTSTART:20221107T210000Z
DTEND:20221107T223000Z
LAST-MODIFIED:20221104T144720Z
LOCATION:Fine 314 and Remote Access
SUMMARY:Joint IAS/Princeton University Symplectic Geometry Seminar
URL:https://www.ias.edu/math/events/joint-iasprinceton-university-symplecti
c-geometry-seminar-200
END:VEVENT
BEGIN:VEVENT
UID:39336138-6237-4639-b163-633862356263
DTSTAMP:20230202T191213Z
CREATED:20220808T191852Z
DESCRIPTION:Topic: Introduction to Natural Quasirandomness: Unique Colorabi
lity and Orderability\n\nSpeakers: Leonardo Coregliano\n\nAffiliation: Mem
ber\, School of Mathematics\n\nThe theory of graph quasirandomness studies
sequences of graphs that\n'look like' samples of the Erdős--Rényi random
graph. The upshot of\nthe theory is that several ways of comparing a seque
nce with the\nrandom graph turn out to be equivalent. For example\, two eq
uivalent\ncharacterizations of quasirandom graph sequences is as those tha
t are\nuniquely colorable or uniquely orderable\, that is\, all colorings
\n(orderings\, respectively) of the graphs 'look approximately the same'.
\n\nThe theory of graph quasirandomness was one of the main motivations\nf
or the development of the theory of limits of graph sequences\,\ngraphons.
Since the theory of graphons has a generalization to\narbitrary combinato
rial objects in the form of the theories of flag\nalgebras and theons\, it
is natural to ask for a theory of\nquasirandomness for arbitrary combinat
orial objects.\n\nIn this talk\, I will introduce the theory of natural qu
asirandomness\,\nwhich provides such generalization. The talk will focus o
n the first\nmain result of natural quasirandomness: the equivalence of un
ique\ncolorability and unique orderability for arbitrary combinatorial\nob
jects. Although the theory heavily uses the language and\ntechniques of c
ontinuous combinatorics from both flag algebras and\ntheons\, no familiari
ty with the topic is required as I will also\nbriefly review all definitio
ns and theorems necessary.
DTSTART:20221108T153000Z
DTEND:20221108T173000Z
LAST-MODIFIED:20221129T200154Z
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-516
END:VEVENT
BEGIN:VEVENT
UID:38633136-3066-4136-b961-626266663464
DTSTAMP:20230202T191213Z
CREATED:20220929T135928Z
DESCRIPTION:Topic: Deviation Spectrum of Ergodic Integrals for Locally Hami
ltonian Flows on Surfaces\n\nSpeakers: Krzysztof Fraczek\n\nAffiliation: N
icolaus Copernicus University\n\nThe talk will consists of a long historic
al introduction to the\ntopic of deviation\nof ergodic averages for local
ly Hamiltonian flows on compact surafces\n as well as\nsome current result
s obtained in collaboration with Corinna Ulcigrai\n and Minsung Kim.\nNew
developments include a better understanding of the asymptotic of\n so-call
ed error term\n(in non-degenerate regime) and the appearance of new expone
nts in the\n deviation spectrum\n(in degenerate regime).
DTSTART:20221108T190000Z
DTEND:20221108T200000Z
LAST-MODIFIED:20221110T150709Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Special Year Research Seminar
URL:https://www.ias.edu/math/events/special-year-research-seminar-6
END:VEVENT
BEGIN:VEVENT
UID:61383436-3838-4130-b933-353964326362
DTSTAMP:20230202T191213Z
CREATED:20221010T172946Z
DESCRIPTION:Topic: Measure Growth in Compact Simple Lie Groups\n\nSpeakers:
Yifan Jing\n\nAffiliation: University of Oxford\n\nThe celebrated product
theorem says if A is a generating subset of a\nfinite simple group of Lie
type G\, then |AAA| \gg \min \{ |A|^{1+c}\,\n|G| \}. In this talk\, I wil
l show that a similar phenomenon appears in\nthe continuous setting: If A
is a subset of a compact simple Lie group\nG\, then \mu(AAA) > \min \{ (3+
c)\mu(A)\, 1 \}\, where \mu is the\nnormalized Haar measure on G. I will a
lso talk about how to use this\nresult to solve the Kemperman Inverse Prob
lem\, and discuss what will\nhappen when G has high dimension or when G is
non-compact.
DTSTART:20221108T203000Z
DTEND:20221108T213000Z
LAST-MODIFIED:20221110T150733Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Special Year Research Seminar
URL:https://www.ias.edu/math/events/special-year-research-seminar-8
END:VEVENT
BEGIN:VEVENT
UID:62303736-3233-4135-b937-313439653634
DTSTAMP:20230202T191213Z
CREATED:20221104T133418Z
DESCRIPTION:Topic: Topics in Model Theory: Stability\, Amalgamation\, and F
inite Fields\n\nSpeakers: Alexis Chevalier\n\nAffiliation: Member\, School
of Mathematics\n\nThe goal of this learning seminar is to explain some of
the core model\ntheoretic notions which are behind Tao’s algebraic regula
rity lemma\nabout definable graphs in finite fields (Tao 2012).\n\nWe will
assume minimal knowledge of model theory and introduce local\nstability t
heory and amalgamation problems from scratch. Stability is\na combinatoria
l notion imposed on formulas which determines rich model\ntheoretic struct
ure. Amalgamation is a model theoretic property which\ndescribes how the b
ehaviour of small sets of variables can determine\ntheir global behaviour.
\n\nWe will see that these distinct notions interact in surprising ways in
\nthe theory of pseudofinite fields. If time permits\, we will give two\nd
ifferent proofs of Tao’s algebraic regularity lemma\, one relying on\nthe
geometry of Hilbert spaces\, and the other relying on\n3-amalgamation in a
lgebraically closed fields.
DTSTART:20221109T153000Z
DTEND:20221109T170000Z
LAST-MODIFIED:20221110T150754Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Special Year Learning Seminar
URL:https://www.ias.edu/math/events/special-year-learning-seminar-3
END:VEVENT
BEGIN:VEVENT
UID:62313436-3339-4563-b731-316563633134
DTSTAMP:20230202T191213Z
CREATED:20220915T172749Z
DESCRIPTION:Topic: The Duffin-Schaeffer Conjecture\n\nSpeakers: James Mayna
rd\n\nAffiliation: Member\, School of Mathematics\n\nGiven any non-negativ
e function $\f:\mathbb{Z}\rightarrow\mathbb{R}$\,\nit follows from basic e
rgodic ideas that either 100% of real numbers\n$\alpha$ have infinitely ma
ny rational approximations $a/q$ with $a\,q$\ncoprime and $|\alpha-a/q|1)$ multiplicity. It is still an open question a
s to whether the set\nof branch points can have positive measure within th
e support of a\nstationary integral varifold. In many of the regularity re
sults known\nfor certain classes of stationary integral varifolds\, branch
points\nare either ruled out a priori\, or\, after significant work\, are
ruled\nout a posteriori. When density gaps may occur\, usually one can pr
ove\nthat the singular set in a density gap region is small and use this t
o\nsomehow rule out density gaps. In this talk\, I will discuss recent\nwo
rk concerning a regularity question where both branch points can\noccur an
d there is no size assumption on the singular set within a gap\nregion. Th
e main result is that\, for a large class of stationary\nintegral varifold
s which have stable smoothly embedded parts\, near\ncertain so-called 'cla
ssical cones'\, a varifold is a multi-valued\ngeneralised-$C^{1\,\alpha}$
perturbation of the classical cone. In\nparticular\, if such a cone arises
as a tangent cone to the varifold\,\nthen the points of density equal to
that of the cone form a\n$C^{1\,\alpha} $submanifold. This work builds on
earlier work by the\nspeaker and Neshan Wickramasekera concerning the loca
l structure of\nbranched stable minimal hypersurfaces.
DTSTART:20221116T213000Z
DTEND:20221116T223000Z
LAST-MODIFIED:20221123T144717Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Analysis & Mathematical Physics
URL:https://www.ias.edu/math/events/analysis-mathematical-physics-3
END:VEVENT
BEGIN:VEVENT
UID:63653437-3966-4936-b332-313164323861
DTSTAMP:20230202T191213Z
CREATED:20220921T191307Z
DESCRIPTION:Topic: Verlinde Dimension Formula for the Space of Conformal Bl
ocks and the Moduli of G-bundles\n\nSpeakers: Shrawan Kumar\n\nAffiliation
: University of North Carolina\; Member\, School of Mathematics\n\nLet G b
e a simply-connected complex semisimple algebraic group and let\nC be a sm
ooth projective curve of any genus. Then\, the moduli space of\nsemistable
G-bundles on C admits so called determinant line bundles.\nE. Verlinde co
njectured a remarkable formula to calculate the\ndimension of the space of
generalized theta functions\, which is by\ndefinition the space of global
sections of a determinant line bundle.\nThis space is also identified wit
h the space of conformal blocks\narising in Conformal Field Theory\, which
is by definition the space\nof coinvariants in integrable highest weight
modules of affine\nKac-Moody Lie algebras. Various works notably by\nTsuc
hiya-Ueno-Yamada\, Kumar-Narasimhan Ramanathan\, Faltings\,\nBeauville-La
szlo\, Sorger and Teleman culminated into a proof of the\nVerlinde formula
.\n\nThe main aim of this course will be to give a complete and self\ncont
ained proof of this formula derived from the Propogation of\nVacua and th
e Factorization Theorem among others. The proof requires\ntechniques from
algebraic geometry\, geometric invariant theory\,\nrepresentation theory o
f affine Kac-Moody Lie algebras\, topology\, and\nLie algebra cohomology.
Some basic knowledge of algebraic geometry\nand representation theory of s
emisimple Lie algebras will be helpful\;\nbut not required. I will develop
the course from scratch recalling\nresults from different areas as we nee
d them.\n\nThe course will be based upon some parts of my book ‘Conformal
\nBlocks\, Generalized Theta Functions and the Verlinde Formula’\npublishe
d by the Cambridge Ubiversity Press this year. This course\nshould be suit
able for any one interested in interaction between\nalgebraic geometry\, r
epresentation theory\, topology and mathematical\nphysics.
DTSTART:20221117T151500Z
DTEND:20221117T170000Z
LAST-MODIFIED:20221207T192144Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Verlinde Dimension Formula
URL:https://www.ias.edu/math/events/verlinde-dimension-formula-3
END:VEVENT
BEGIN:VEVENT
UID:30323064-6364-4930-a361-323036356433
DTSTAMP:20230202T191213Z
CREATED:20221026T143627Z
DESCRIPTION:
DTSTART:20221117T180000Z
DTEND:20221117T200000Z
LAST-MODIFIED:20221121T161103Z
LOCATION:Rubenstein Commons | Meeting Room 5
SUMMARY:Reading Seminar on Alexandrov Geometry
URL:https://www.ias.edu/events/reading-seminar-alexandrov-geometry-2
END:VEVENT
BEGIN:VEVENT
UID:61333234-3530-4138-b834-356161653263
DTSTAMP:20230202T191213Z
CREATED:20220830T175006Z
DESCRIPTION:Topic: Toward a Theory of Prime Detecting Sieves\n\nSpeakers: K
evin Ford\n\nAffiliation: University of Illinois Urbana-Champaign\n\nGiven
a set of integers\, we wish to know how many primes there are in\nthe set
. Modern tools allow us to obtain an asymptotic for the\nnumber of primes
\, or at least a lower bound of the expected order\,\nassuming certain str
ength Type-I information (the distribution of the\nsequence in progression
s) and Type-II information (bilinear sums over\nthe sequence). The methods
used previously\, especially Harman's\nsieve\, are largely ad-hoc and she
d little light on the limitations of\nthe methods. In joint work with Jame
s Maynard\, we develop a systematic\nframework for understanding the theor
etical limits of these prime\ndetecting sieves\, which allow us\, in princ
iple\, to answer these\nquestions for any given Type I and Type-II informa
tion.
DTSTART:20221117T213000Z
DTEND:20221117T223000Z
LAST-MODIFIED:20221117T211705Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Joint IAS/PU Number Theory Seminar
URL:https://www.ias.edu/math/events/joint-iaspu-number-theory-seminar-6
END:VEVENT
BEGIN:VEVENT
UID:31353734-3062-4636-a564-396237316331
DTSTAMP:20230202T191213Z
CREATED:20220901T174645Z
DESCRIPTION:Topic: Lozenge Tilings and the Gaussian Free Field on a Cylinde
r\n\nSpeakers: Marianna Russkikh\n\nAffiliation: California Institute of T
echnology\n\nWe discuss new results on lozenge tilings on an infinite cyli
nder\,\nwhich may be analyzed using the periodic Schur process introduced
by\nBorodin. Under one variant of the q^vol measure\, corresponding to\nra
ndom cylindric partitions\, the height function converges to a\ndeterminis
tic limit shape and fluctuations around it are given by the\nGaussian free
field in the conformal structure predicted by the\nKenyon-Okounkov conjec
ture. Under another variant\, corresponding to an\nunrestricted tiling mod
el on the cylinder\, the fluctuations are given\nby the same Gaussian free
field with an additional discrete Gaussian\nshift component. Fluctuations
of the latter type have been previously\nconjectured for tiling models on
planar domains with holes.
DTSTART:20221118T161500Z
DTEND:20221118T171500Z
LAST-MODIFIED:20221123T145342Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Probability Seminar
URL:https://www.ias.edu/math/events/probability-seminar-7
END:VEVENT
BEGIN:VEVENT
UID:31663237-6336-4333-a533-373866326130
DTSTAMP:20230202T191213Z
CREATED:20221014T131813Z
DESCRIPTION:Topic: The Beilinson-Lichtenbaum Conjecture\n\nSpeakers: Peter
James Haine\n\nAffiliation: Massachusetts Institute of Technology
DTSTART:20221118T180000Z
DTEND:20221118T200000Z
LAST-MODIFIED:20221111T182927Z
LOCATION:Rubenstein Commons\, Room#5
SUMMARY:Milnor Conjecture Learning Seminar
URL:https://www.ias.edu/math/events/milnor-conjecture-learning-seminar-2
END:VEVENT
BEGIN:VEVENT
UID:64626136-6237-4363-a534-346539643466
DTSTAMP:20230202T191213Z
CREATED:20220808T183247Z
DESCRIPTION:Topic: Strong XOR Lemma for Communication with Bounded Rounds\n
\nSpeakers: Huacheng Yu\n\nAffiliation: Princeton University\n\nIn this ta
lk\, we show a strong XOR lemma for bounded-round two-player\nrandomized c
ommunication. For a function f:X×Y→{0\,1}\, the\nn-fold XOR function f^⊕n
:X^n×Y^n→{0\,1} maps n input pairs\n(x_1\,...\,x_n)\, (y_1\,...\,y_n) to t
he XOR of the n output bits\nf(x_1\,y_1)⊕...⊕f(x_n\, y_n). We prove that
if every r-round\ncommunication protocols that computes f with probability
2/3 uses at\nleast C bits of communication\, then any r-round protocol th
at\ncomputes f^⊕n with probability 1/2+exp(-O(n)) must use\nn(r^{-O (r)}C-
1) bits. When r is a constant and C is sufficiently\nlarge\, this is Omeg
a(nC) bits. It matches the communication cost\nand the success probabilit
y of the trivial protocol that computes the\nn bits f(x_i\,y_i) independen
tly and outputs their XOR\, up to a\nconstant factor in n. \n\nA similar X
OR lemma has been proved for f whose communication lower\nbound can be obt
ained via bounding the discrepancy [Shaltiel03]. By\nthe equivalence betwe
en the discrepancy and the correlation with\n2-bit communication protocols
\, our new XOR lemma implies the previous\nresult.
DTSTART:20221121T161500Z
DTEND:20221121T171500Z
LAST-MODIFIED:20221129T200329Z
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-522
END:VEVENT
BEGIN:VEVENT
UID:34646636-6163-4764-b765-376132623536
DTSTAMP:20230202T191213Z
CREATED:20220830T155027Z
DESCRIPTION:Topic: Local Systems\, Positivity and (Non-Commutative) Markov
Numbers\n\nSpeakers: Anna Wienhard\n\nAffiliation: Princeton University\;
Member\, School of Mathematics\n\nMarkov numbers are positive integers tha
t appear in solutions of the\nequation x^2+y^2+z^2=3xyz. They also appear
naturally when one tries\nto parametrize positive $SL_2(R)$-local systems
on a one punctured\ntorus. In this talk I will explain that there are gene
ralizations of\nsuch positive local systems for more general semisimple Li
e groups. I\nwill then discuss a special case which is related to groups o
f type\n$SL_2$ over non-commutative rings and describe the positive struct
ures\nassociated to this. In the end I will show how this leads to\nnon-co
mmutative deformations of Markov numbers.
DTSTART:20221121T190000Z
DTEND:20221121T200000Z
LAST-MODIFIED:20221130T173942Z
LOCATION:Simonyi Hall 101 and Remote Access - see Zoom link below
SUMMARY:Members' Colloquium
URL:https://www.ias.edu/math/events/members-colloquium-38
END:VEVENT
BEGIN:VEVENT
UID:39336561-3738-4431-b539-326363316661
DTSTAMP:20230202T191213Z
CREATED:20221117T133329Z
DESCRIPTION:Speakers: Scott Sheffield\, Catherine Wolfram\n\nAffiliation: M
assachusetts Institute of Technology\; Visiting Professor\, School of Math
ematics\; Massachusetts Institute of Technology\n\nCome play with 250 phys
ical wooden blocks and join us in thinking\nabout a simple open problem fo
r dimers in 3D. No prior knowledge\nrequired. We’ll start with an ~10 minu
te presentation explaining the\nproblem and then suggest some things for e
veryone to try to construct\nwith the blocks.\n\nA bit more detail: a dime
r tiling of a region R contained in Z^d is a\ntiling by blocks which are l
ength 2 in one dimension and length 1 in\nall others (e.g. like dominos in
2D or like bricks in 3D). In 2D\,\nthere is a local move called a flip (a
flip takes two parallel tiles\nand rotates them\, e.g. || becomes = ). It
turns out that any two dimer\ntilings of the same simply connected planar
region are connected by a\nsequence of flips. In 3D\, dimer tilings are n
ot connected under flips\neven on the 3x3x2 box. Adding another local move
called\na _trit _involving 3 tiles instead of 2\, it’s an open question\n
whether dimer tilings of the LxNxM box are connected under flips and\ntrit
s if L\,M\,N > 2.
DTSTART:20221121T201500Z
DTEND:20221121T214500Z
LAST-MODIFIED:20221118T203001Z
LOCATION:Simonyi Hall Common Room
SUMMARY:3D Dimer Block Party
URL:https://www.ias.edu/math/events/3d-dimer-block-party
END:VEVENT
BEGIN:VEVENT
UID:36353864-6238-4162-a636-323433336133
DTSTAMP:20230202T191213Z
CREATED:20220825T195617Z
DESCRIPTION:Topic: A Connected Sum Formula of Embedded Contact Homology\n\n
Speakers: Luya Wang\n\nAffiliation: University of California\, Berkeley\n
\nThe contact connected sum is a well-understood operation for contact\nma
nifolds. I will focus on the 3-dimensional case and the Weinstein\n1-handl
e model for the contact connected sum. I will discuss how\npseudo-holomorp
hic curves in the symplectization behave under this\noperation. After revi
ewing embedded contact homology\, we will see how\nthis results in a chain
-level description of the embedded contact\nhomology of a connected sum.
DTSTART:20221121T210000Z
DTEND:20221121T223000Z
LAST-MODIFIED:20221110T211959Z
LOCATION:Fine 314 and Remote Access
SUMMARY:Joint IAS/Princeton University Symplectic Geometry Seminar
URL:https://www.ias.edu/math/events/joint-iasprinceton-university-symplecti
c-geometry-seminar-199
END:VEVENT
BEGIN:VEVENT
UID:63623637-3338-4535-a430-373039393531
DTSTAMP:20230202T191213Z
CREATED:20220808T191942Z
DESCRIPTION:Topic: The Polynomial Method in Communication Complexity\n\nSpe
akers: Pei Wu\n\nAffiliation: Member\, School of Mathematics\n\nA powerful
technique developed and extended in the past decade in\ncommunication com
plexity is the so-called 'lifting theorems.' The\nidea is to translate th
e hardness results from 'easier' models\, e.g.\,\nquery complexity\, polyn
omial degrees\, to the more challenging\ncommunication model.\n\nIn this t
alk\, I plan to discuss lifting polynomial degrees to\ncommunication lower
bounds. For any boolean function $f: {0\,1}^n \to\n{0\,1}$\, we show ther
e is a constant size gadget g: $X \times Y \to\n{0\,1}$\, such that $f \c
irc g$ has (deterministic\,\nquantum\, unbounded-error probabilistic) comm
unication complexity at\nleast the (exact\, approximate\, and threshold) d
egree of f. This\nparticular technique was developed by Sherstov\, Razboro
v-Sherstov in a\nseries of works.\n\nBesides proving strong communication
lower bounds\, the technique has\napplications in many areas\, especially
circuits complexity.\nHopefully\, we will discuss some of the applications
.'
DTSTART:20221122T153000Z
DTEND:20221122T173000Z
LAST-MODIFIED:20221129T200405Z
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-520
END:VEVENT
BEGIN:VEVENT
UID:31626438-6132-4162-a138-333364356361
DTSTAMP:20230202T191213Z
CREATED:20221025T182145Z
DESCRIPTION:Topic: Almost all Dynamically Syndetic Sets are Multiplicativel
y Thick\n\nSpeakers: Daniel Glasscock\n\nAffiliation: University of Massac
husetts Lowell\n\nIf a set of integers is syndetic (finitely many translat
es cover the\nintegers)\, must it contain two integers whose ratio is a sq
uare? No\none knows. In the broader context of the disjointness between
\nadditive and multiplicative configurations and actions in ergodic\nRamse
y theory\, it makes sense to ask similar questions about\ndynamically synd
etic sets\, those sets that contain the visit times of\na point to an open
set in a minimal topological dynamical system. \nThe main result of the t
alk is that almost every dynamically syndetic\nset is multiplicatively ver
y rich: it is “thick” in some coset of\na multiplicative subsemigroup. We
will discuss some applications: a\n“thick-starters” van der Waerden theor
em\; the existence of\nmultiplicative structure in sets of the form A – A
+ t\; and the\ntopological disjointness of minimal niltranslations and min
imal\,\naperiodic multiplicative actions. Time permitting\, we will discu
ss\nthree tools that proved useful in the topic: the prolongation relation
\n(the closure of the orbit-closure relation) developed by Auslander\,\nAk
in\, and Glasner\; the theory of rational points and polynomials on\nnilma
nifolds developed by Leibman\, Green\, Tao\; and the machinery of\ntopolog
ical characteristic factors developed recently by Glasner\,\nHuang\, Shao\
, Weiss\, and Ye. This talk is based on work\nin https://arxiv.org/abs/22
07.00098.
DTSTART:20221122T190000Z
DTEND:20221122T203000Z
LAST-MODIFIED:20221214T194334Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Special Year Research Seminar
URL:https://www.ias.edu/math/events/special-year-research-seminar-10
END:VEVENT
BEGIN:VEVENT
UID:36393230-3363-4166-b733-363636323134
DTSTAMP:20230202T191213Z
CREATED:20221118T203842Z
DESCRIPTION:Topic: Tao’s Entropy Decrement Argument and Applications\n\nSpe
akers: Joni Teräväinen\n\nAffiliation: University of Turku\, von Neumann F
ellow\, School of Mathematics
DTSTART:20221123T153000Z
DTEND:20221123T170000Z
LAST-MODIFIED:20221214T194403Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Special Year Learning Seminar
URL:https://www.ias.edu/math/events/special-year-learning-seminar-4
END:VEVENT
BEGIN:VEVENT
UID:62616530-3063-4563-b661-343933656236
DTSTAMP:20230202T191213Z
CREATED:20221110T204109Z
DESCRIPTION:Topic: Three 20-min Research Talks\n\nSpeakers: Yash Deshmukh\,
Lea Kenigsberg \, Thomas Massoni \n\nAffiliation: Columbia University\; C
olumbia University\; Princeton University\n\nYASH DESHMUKH (Columbia Unive
rsity): Moduli Spaces of Nodal Curves\nfrom Homotopical Algebra\n\nI will
discuss how the Deligne-Mumford compactification of curves\narises from th
e uncompactified moduli spaces of curves as a result of\nsome algebraic op
erations related to (pr)operadic structures on the\nmoduli spaces. I will
describe how a variation of this naturally gives\nrise to another new part
ial compactification of moduli spaces curves.\nTime permitting\, I will in
dicate how it is related to secondary\noperations on symplectic cohomology
and discuss some ongoing work in\nthis direction.\n\nLEA KENIGSBERG (Colu
mbia University): Coproduct Structures\, a Tale of\nTwo Outputs\n\nI will
motivate the study of coproducts and describe a new coproduct\nstructure o
n the symplectic cohomology of Liouville manifolds. Time\npermitting\, I w
ill indicate how to compute it in an example to show\nthat it's not trivia
l. This is based on my thesis work\, in progress.\n\nTHOMAS MASSONI (Princ
eton University): Non-Weinstein Liouville Domains\nand Three-Dimensional A
nosov Flows\n\nWeinstein domains and their symplectic invariants have been
\nextensively studied over the last 30 years. Little is known about\nnon-W
einstein Liouville domains\, whose first instance is due to\nMcDuff. I wil
l describe two key examples of such domains in dimension\nfour\, and then
explain how they fit into a general construction based\non Anosov flows on
three-manifolds. The symplectic invariants of these\n“Anosov Liouville do
mains” constitute new invariants of Anosov\nflows. The algebraic structure
of their wrapped Fukaya categories is\nin stark contrast with the Weinste
in case.\n\nThis is mostly based on joint work arXiv:2211.07453 with Kai\n
Cieliebak\, Oleg Lazarev and Agustin Moreno
DTSTART:20221125T141500Z
DTEND:20221125T154500Z
LAST-MODIFIED:20221129T140302Z
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-104
END:VEVENT
BEGIN:VEVENT
UID:64333633-3663-4536-b330-383638353963
DTSTAMP:20230202T191213Z
CREATED:20220808T191800Z
DESCRIPTION:Topic: Algorithmic Stochastic Localization for the Sherrington-
Kirkpatrick Model\n\nSpeakers: Mark Sellke\n\nAffiliation: Member\, School
of Mathematics\n\nSampling from high-dimensional\, multimodal distributio
ns is a\ncomputationally challenging and fundamental task. This talk will
\nfocus on a family of random instances of such problems described by\nran
dom quadratic potentials on the hypercube known as the\nSherrington-Kirkpa
trick model. I will describe an approximate\nsampling algorithm for the h
igh temperature regime as well as matching\nlow-temperature hardness resul
ts stemming from disorder chaos. Our\nalgorithm uses stochastic localizat
ion\, which progressively tilts the\ndesired measure towards a single conf
iguration\, together with an\napproximate message passing algorithm that i
s used to approximate the\nmean of the tilted measure. Based on joint wor
k with Ahmed El Alaoui\nand Andrea Montanari.
DTSTART:20221128T161500Z
DTEND:20221128T171500Z
LAST-MODIFIED:20221129T200435Z
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-527
END:VEVENT
BEGIN:VEVENT
UID:61393037-6135-4362-b463-393732626330
DTSTAMP:20230202T191213Z
CREATED:20220830T155142Z
DESCRIPTION:Topic: An Introduction to Random Surfaces\n\nSpeakers: Scott
Sheffield\n\nAffiliation: Massachusetts Institute of Technology\; Visiting
Professor\, School of Mathematics\n\nThe theory of 'random surfaces' has
emerged in recent decades as a\nsignificant field of mathematics\, lying s
omehow at the interface\nbetween geometry\, probability\, and mathematical
physics. I will give a\nfriendly (I hope) colloquium-level overview of th
e subject with lots\nof pictures. Topics will include random planar maps (
interpreted as\ndiscrete random surfaces)\, Liouville quantum gravity surf
aces\,\nconformal field theory. and the random fractal curves produced fro
m\nthe Schramm-Loewner evolution. Many of these topics are motivated\nby
physics (statistical physics\, string theory\, quantum field theory\,\netc
.) but they also have simple mathematical definitions that can be\nunderst
ood without a lot of physics background.
DTSTART:20221128T190000Z
DTEND:20221128T200000Z
LAST-MODIFIED:20221130T174156Z
LOCATION:Simonyi Hall 101 and Remote Access - see Zoom link below
SUMMARY:Members' Colloquium
URL:https://www.ias.edu/math/events/members-colloquium-39
END:VEVENT
BEGIN:VEVENT
UID:63666334-3332-4765-a537-396163373331
DTSTAMP:20230202T191213Z
CREATED:20220825T200959Z
DESCRIPTION:Topic: Computing Embedded Contact Homology in the Morse-Bott Se
tting using Cascades\n\nSpeakers: Yuan Yao\n\nAffiliation: University of C
alifornia\, Berkeley\n\nI will first give an overview of ECH. Then I will
describe how to\ncompute ECH in the Morse-Bott setting a la Bourgeois. I w
ill discuss\nsome classes of examples where this approach works. Finally I
will\nsketch the gluing results that allow us to compute ECH using cascad
es.
DTSTART:20221128T210000Z
DTEND:20221128T223000Z
LAST-MODIFIED:20221128T213129Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Joint IAS/Princeton University Symplectic Geometry Seminar
URL:https://www.ias.edu/math/events/joint-iasprinceton-university-symplecti
c-geometry-seminar-195
END:VEVENT
BEGIN:VEVENT
UID:31353930-6261-4131-a666-333763656430
DTSTAMP:20230202T191213Z
CREATED:20220808T192011Z
DESCRIPTION:Topic: The Hypergraph Container Method\, Partition Containers\,
and Algorithmic Applications\n\nSpeakers: Or Zamir\n\nAffiliation: Visito
r\, School of Mathematics\n\nThe recently-discoverd Hypergraph Container M
ethod (Saxton and\nThomason\, Balogh\, Morris and Samotij)\, generalizing
an earlier version\nfor graphs (Kleitman and Winston)\, is used extensivel
y in recent years\nin extremal and probabilistic combinatroics. In essenc
e\, it shows\nthat independent sets in regular-enough dense hypergraphs mu
st be\nclustered in some fashion.\n\nIn this seminar we will give an overv
iew of this method and then\npresent its first algorithmic applications.
We use it\nalgorithmically to convert algorithms into faster algorithms fo
r\nregular or dense input instances. An important component of our work\n
is the generalization of graph containers to Partition Containers. \nWhile
standard containers apply to a single independent set\, partition\ncontai
ners explore the structure of several independent sets at the\nsame time.
\n\nOur main application resolves a major open problem about Graph\nColori
ng algorithms\, for regular graphs. The chromatic number of a\ngraph can
be computed in $2^n$ time (Husfeldt et al.). For $k<=6$ it\nis known that
$k$-coloring can be solved in $(2-eps)^n$ time for some\n$eps>0$. For la
rger values of $k$ improvements are only known for\nsparse graphs. We sho
w that $k$-coloring of regular graphs can be\nsolved in $(2-eps_k)^n$ time
\, where $eps_k>0$ for every $k$. We\nstress that the degree of the regul
ar graphs is unbounded. \n\nAs another application\, we give the first im
proved $k$-SAT algorithm\nfor dense formulas. We give additional applicat
ions including faster\nalgorithms for unweighted and weighted Maximum Inde
pendent Set\nalgorithms in regular graphs.
DTSTART:20221129T153000Z
DTEND:20221129T173000Z
LAST-MODIFIED:20221129T200610Z
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-519
END:VEVENT
BEGIN:VEVENT
UID:35343736-6532-4532-b665-633165313437
DTSTAMP:20230202T191213Z
CREATED:20221128T132619Z
DESCRIPTION:Topic: Ultafilters\, Dynamics\, and Number Theory\n\nSpeakers:
Florian K Richter\n\nAffiliation: Northwestern University\, Member\, Schoo
l of Mathematics\n\nWe will survey general definitions and facts about ult
rafilters\, and\nhow the algebraic operations on the integers extend to th
e space of\nultrafilters. We will also discuss some applications in combin
atorial\nnumber theory and ergodic theory.
DTSTART:20221130T153000Z
DTEND:20221130T170000Z
LAST-MODIFIED:20221214T194233Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Special Year Learning Seminar
URL:https://www.ias.edu/math/events/special-year-learning-seminar-5
END:VEVENT
BEGIN:VEVENT
UID:38386138-6535-4961-b061-393330313664
DTSTAMP:20230202T191213Z
CREATED:20220907T172613Z
DESCRIPTION:Topic: Decay for the Teukolsky Equation on Subextremal Kerr Bla
ck Holes\n\nSpeakers: Rita Teixeira da Costa \n\nAffiliation: Princeton Un
iversity\n\nThe Teukolsky equation is one of the fundamental equations gov
erning\nlinear gravitational perturbations of the Kerr black hole family a
s\nsolutions to the vacuum Einstein equations. We show that solutions\nari
sing from suitably regular initial data decay inverse polynomially\nin tim
e. Our proof holds for the entire subextremal range of Kerr\nblack hole pa
rameters\, |a|≤M. This is joint work with Yakov\nShlapentokh-Rothman (Toro
nto).
DTSTART:20221130T200000Z
DTEND:20221130T210000Z
LAST-MODIFIED:20221207T191655Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Analysis & Mathematical Physics
URL:https://www.ias.edu/math/events/analysis-mathematical-physics-4
END:VEVENT
BEGIN:VEVENT
UID:65306163-6631-4632-b030-613232656635
DTSTAMP:20230202T191213Z
CREATED:20220810T131242Z
DESCRIPTION:Topic: Is the Mapping Class Group Always the Biggest Group? \n
\nSpeakers: Anna Wienhard\n\nAffiliation: Heidelberg University\; Member\
, School of Mathematics \n\nThe mapping class group of a surface is a very
important\, but still\nmysterious group. Natural actions of the mapping c
lass group appear on\nrepresentation varieties of surface groups. In some
cases\, e.g. when\nthis action preserves a metric\, we know that no bigger
group can act\nby isometries. But what happens if we look at actions that
preserve\nnot a metric\, but only the natural symplectic structure on\nre
presentation varieties?
DTSTART:20221130T230000Z
DTEND:20221201T010000Z
LAST-MODIFIED:20221121T143554Z
LOCATION:Birch Garden\, Simons Hall
SUMMARY:Mathematical Conversations
URL:https://www.ias.edu/math/events/mathematical-conversations-246
END:VEVENT
BEGIN:VEVENT
UID:36383636-6533-4866-b739-666465656137
DTSTAMP:20230202T191213Z
CREATED:20220921T191336Z
DESCRIPTION:Topic: Verlinde Dimension Formula for the Space of Conformal Bl
ocks and the Moduli of G-bundles\n\nSpeakers: Shrawan Kumar\n\nAffiliation
: University of North Carolina\; Member\, School of Mathematics\n\nLet G b
e a simply-connected complex semisimple algebraic group and let\nC be a sm
ooth projective curve of any genus. Then\, the moduli space of\nsemistable
G-bundles on C admits so called determinant line bundles.\nE. Verlinde co
njectured a remarkable formula to calculate the\ndimension of the space of
generalized theta functions\, which is by\ndefinition the space of global
sections of a determinant line bundle.\nThis space is also identified wit
h the space of conformal blocks\narising in Conformal Field Theory\, which
is by definition the space\nof coinvariants in integrable highest weight
modules of affine\nKac-Moody Lie algebras. Various works notably by\nTsuc
hiya-Ueno-Yamada\, Kumar-Narasimhan Ramanathan\, Faltings\,\nBeauville-La
szlo\, Sorger and Teleman culminated into a proof of the\nVerlinde formula
.\n\nThe main aim of this course will be to give a complete and self\ncont
ained proof of this formula derived from the Propogation of\nVacua and th
e Factorization Theorem among others. The proof requires\ntechniques from
algebraic geometry\, geometric invariant theory\,\nrepresentation theory o
f affine Kac-Moody Lie algebras\, topology\, and\nLie algebra cohomology.
Some basic knowledge of algebraic geometry\nand representation theory of s
emisimple Lie algebras will be helpful\;\nbut not required. I will develop
the course from scratch recalling\nresults from different areas as we nee
d them.\n\nThe course will be based upon some parts of my book ‘Conformal
\nBlocks\, Generalized Theta Functions and the Verlinde Formula’\npublishe
d by the Cambridge Ubiversity Press this year. This course\nshould be suit
able for any one interested in interaction between\nalgebraic geometry\, r
epresentation theory\, topology and mathematical\nphysics.
DTSTART:20221201T151500Z
DTEND:20221201T170000Z
LAST-MODIFIED:20221207T191931Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Verlinde Dimension Formula
URL:https://www.ias.edu/math/events/verlinde-dimension-formula-4
END:VEVENT
BEGIN:VEVENT
UID:37656561-6236-4338-a336-336563346139
DTSTAMP:20230202T191213Z
CREATED:20221026T143720Z
DESCRIPTION:
DTSTART:20221201T180000Z
DTEND:20221201T200000Z
LAST-MODIFIED:20221207T152252Z
LOCATION:Rubenstein Commons | Meeting Room 5
SUMMARY:Reading Seminar on Alexandrov Geometry
URL:https://www.ias.edu/events/reading-seminar-alexandrov-geometry-3
END:VEVENT
BEGIN:VEVENT
UID:61393566-6661-4434-a333-653034383339
DTSTAMP:20230202T191213Z
CREATED:20220830T175113Z
DESCRIPTION:Topic: Plectic Stark-Heegner Points\n\nSpeakers: Michele Fornea
\n\nAffiliation: Columbia University\n\nI will report on a series of joint
works with Gehrmann\, Guitart and\nMasdeu about a plectic generalization
of Darmon's Stark-Heegner (SH)\npoints. \n\nWe constructed plectic SH poin
ts as p-adic points on elliptic curves\nand we expect them to control the
arithmetic of higher rank\nMordell-Weil groups. To support our conjectures
we numerically\nverified them in many cases\, we established an explicit
relation\nbetween plectic SH points and higher derivatives\nof 𝑝-adic 𝐿-fu
nctions\, and we proved the algebraicity of\nplectic points in special cas
es.
DTSTART:20221201T213000Z
DTEND:20221201T223000Z
LAST-MODIFIED:20221207T152434Z
LOCATION:Princeton University\, Fine Hall 214
SUMMARY:Joint IAS/PU Number Theory Seminar
URL:https://www.ias.edu/math/events/joint-iaspu-number-theory-seminar-7
END:VEVENT
BEGIN:VEVENT
UID:34383064-6631-4636-b237-643933303632
DTSTAMP:20230202T191213Z
CREATED:20220901T174741Z
DESCRIPTION:Topic: Modular Transformation of Conformal Blocks via Liouville
CFT\n\nSpeakers: Yi Sun\n\nAffiliation: University of Chicago\n\nConforma
l blocks are objects of fundamental importance in the\nbootstrap approach
for exact solvability of 2D conformal field theory\n(CFT). In this talk\,
we will present novel probabilistic expressions\nfor them using the Gauss
ian free field in lieu of their typical\nconstruction via representations
of the Virasoro algebra. We will\nthen explain how to apply these express
ions to derive analytic\nproperties of conformal blocks such as modular tr
ansformations. Our\nmethods are based on recent developments in the probab
ilistic\nconstruction of Liouville CFT\, a theory first introduced by Poly
akov\nto describe random surfaces in string theory. This talk is based o
n\njoint work with Promit Ghosal\, Guillaume Remy\, and Xin Sun.
DTSTART:20221202T161500Z
DTEND:20221202T171500Z
LAST-MODIFIED:20221202T194315Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Probability Seminar
URL:https://www.ias.edu/math/events/probability-seminar-9
END:VEVENT
BEGIN:VEVENT
UID:66643033-3638-4135-b435-366636653032
DTSTAMP:20230202T191213Z
CREATED:20221021T180549Z
DESCRIPTION:Topic: S-arithmetic Diophantine Approximation\n\nSpeakers: Shre
yasi Datta\n\nAffiliation: University of Michigan\, Ann Arbor\n\nDiophanti
ne approximation deals with quantitative and qualitative\naspects of appro
ximating numbers by rationals. A major breakthrough by\nKleinbock and Marg
ulis in 1998 was to study Diophantine approximations\nfor manifolds using
homogeneous dynamics. After giving an overview of\nrecent developments in
this subject\, I will talk about Diophantine\napproximation in the S-arith
metic set-up\, where S is a finite set of\nvaluations of rationals.
DTSTART:20221202T183000Z
DTEND:20221202T193000Z
LAST-MODIFIED:20221207T191742Z
LOCATION:Simonyi 101
SUMMARY:Special Year Informal Seminar
URL:https://www.ias.edu/math/events/special-year-informal-seminar-0
END:VEVENT
BEGIN:VEVENT
UID:64393932-6537-4235-b961-386239636330
DTSTAMP:20230202T191213Z
CREATED:20220808T184501Z
DESCRIPTION:Topic: Optimal Weak to Strong Learning\n\nSpeakers: Kasper Gree
n Larsen\n\nAffiliation: Aarhus University \n\nThe classic algorithm AdaBo
ost allows to convert a weak learner\, that\nis an algorithm that produces
a hypothesis which is slightly better\nthan chance\, into a strong learne
r\, achieving arbitrarily high\naccuracy when given enough training data.
We present a new algorithm\nthat constructs a strong learner from a weak l
earner but uses less\ntraining data than AdaBoost and all other weak to st
rong learners to\nachieve the same generalization bounds. A sample complex
ity lower\nbound shows that our new algorithm uses the minimum possible am
ount of\ntraining data and is thus optimal. Hence\, this work settles the
sample\ncomplexity of the classic problem of constructing a strong learner
\nfrom a weak learner. \n\nThis work was accepted at NeurIPS’22 and is joi
nt work with Martin\nRitzert from Aarhus University\n\n
DTSTART:20221205T161500Z
DTEND:20221205T171500Z
LAST-MODIFIED:20221207T191519Z
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-524
END:VEVENT
BEGIN:VEVENT
UID:31616337-3462-4731-b333-336332373561
DTSTAMP:20230202T191213Z
CREATED:20220830T155229Z
DESCRIPTION:Topic: The Other Galois Representation of an Elliptic Curve\n\n
Speakers: Michael Larsen\n\nAffiliation: Indiana University\; Member\, Sch
ool of Mathematics\n\nLet $E$ be an elliptic curve defined over $\Q$. The
$\bar\Q$-points\nof $E$ form an abelian group on which the Galois group $
G_{\Q} =\n\Gal(\bar\Q/\Q)$ acts. The usual Galois representation associat
ed to\n$E$ captures the action of $G_{\Q}$ on the points of finite order.
\n However\, one could also look at the action of $G_{\Q}$ on the free\npa
rt of $E(\bar\Q)$. This infinite-dimensional representation\nencodes a gr
eat deal of interesting arithmetic information. I will\nstate a conjectur
e concerning this other Galois representation and\npresent supporting evid
ence from probability theory\, Ramsey theory\,\nalgebraic geometry\, and n
umber theory.
DTSTART:20221205T190000Z
DTEND:20221205T200000Z
LAST-MODIFIED:20221207T145731Z
LOCATION:Simonyi Hall 101 and Remote Access - see Zoom link below
SUMMARY:Members' Colloquium
URL:https://www.ias.edu/math/events/members-colloquium-40
END:VEVENT
BEGIN:VEVENT
UID:62383561-6662-4431-a635-313839616364
DTSTAMP:20230202T191213Z
CREATED:20220825T201126Z
DESCRIPTION:Topic: Symplectic Geometry of Anosov Flows and their Invariant
Volume Forms\n\nSpeakers: Surena Hozoori\n\nAffiliation: University of Roc
hester\n\nSince their introduction in the early 1960s\, Anosov flows have
defined\nan important class of dynamics\, thanks to their many interesting
\nchaotic features and rigidity properties. Moreover\, their topological\n
aspects have been deeply explored\, in particular in low dimensions\,\ntha
nks to the use of foliation theory in their study. Although the\nconnectio
n of Anosov flows to contact and symplectic geometry was\nnoted in the mid
1990s by Mitsumatsu and Eliashberg-Thurston\, such\ninterplay has been le
ft mostly unexplored. I will present some recent\nresults on the contact a
nd symplectic geometric aspects of Anosov\nflows in dimension 3\, includin
g in the presence of an invariant volume\nform\, which is known to have gr
ave consequences for the dynamics of\nthese flows. Time permitting\, the i
nterplay of Anosov flows with Reeb\ndynamics\, Liouville geometry and surg
ery theory will be briefly\ndiscussed as well.
DTSTART:20221205T210000Z
DTEND:20221205T223000Z
LAST-MODIFIED:20221110T211514Z
LOCATION:Fine 314 and Remote Access
SUMMARY:Joint IAS/Princeton University Symplectic Geometry Seminar
URL:https://www.ias.edu/math/events/joint-iasprinceton-university-symplecti
c-geometry-seminar-201
END:VEVENT
BEGIN:VEVENT
UID:66383536-6231-4237-a235-306566373661
DTSTAMP:20230202T191213Z
CREATED:20220808T192039Z
DESCRIPTION:Topic: Online List Labeling: Breaking the log$^2$ n Barrier\n\n
Speakers: Nicole Wein\n\nAffiliation: Rutgers University\n\nThe online lis
t labeling problem is a basic primitive in data\nstructures. The goal is t
o store a dynamically-changing set of n items\nin an array of m slots\, wh
ile keeping the elements in sorted order. To\ndo so\, some items may need
to be moved over time\, and the goal is to\nminimize the number of items m
oved per insertion/deletion. When $m =\nCn$ for some constant $C>1$\, an u
pper bound of $O(log^2 n)$items moved\nper insertion/deletion has been kno
wn since 1981. There is a matching\nlower bound for deterministic algorith
ms\, but for randomized\nalgorithms\, the best known lower bound is Omega(
log n)\, leaving a gap\nbetween upper and lower bounds. We improve the upp
er bound\, providing\na randomized data structure with expected $O(log^{3/
2} n)$ items moved\nper insertion/deletion.\n\nJoint work with Michael Ben
der\, Alexander Conway\, Martin\nFarach-Colton\, Hanna Komlos\, and Willia
m Kuszmaul
DTSTART:20221206T153000Z
DTEND:20221206T173000Z
LAST-MODIFIED:20221207T191544Z
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-521
END:VEVENT
BEGIN:VEVENT
UID:31613530-3663-4262-b463-363033393730
DTSTAMP:20230202T191213Z
CREATED:20220812T133029Z
DESCRIPTION:Topic: Products of Primes in Arithmetic Progressions\n\nSpeaker
s: Joni Teräväinen\n\nAffiliation: University of Turku\, von Neumann Fello
w\, School of Mathematics\n\nA conjecture of Erdős states that for every l
arge enough prime q\,\nevery reduced residue class modulo q is the product
of two primes less\nthan q. I will discuss my on-going work with Kaisa Ma
tomäki\nestablishing among other things a ternary variant of Erdős'\nconje
cture\, namely that every reduced residue class modulo q is the\nproduct o
f three primes less than q. The proof is based on a\nmultiplicative transf
erence principle\, Kneser's theorem\, and bounds\nfor the least primes in
cosets of small index subgroups.
DTSTART:20221206T190000Z
DTEND:20221206T200000Z
LAST-MODIFIED:20221214T194154Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Special Year Research Seminar
URL:https://www.ias.edu/math/events/special-year-research-seminar-0
END:VEVENT
BEGIN:VEVENT
UID:31666663-3333-4938-a166-386563303737
DTSTAMP:20230202T191213Z
CREATED:20221129T142258Z
DESCRIPTION:Topic: One-Parameter Subgroups\, Stability and Kempf's Theorem
\n\nSpeakers: Arthur Bik\n\nAffiliation: Member\, School of Mathematics
DTSTART:20221207T153000Z
DTEND:20221207T170000Z
LAST-MODIFIED:20221214T194131Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Special Year Learning Seminar
URL:https://www.ias.edu/math/events/special-year-learning-seminar-6
END:VEVENT
BEGIN:VEVENT
UID:32616637-3266-4537-a334-303336656530
DTSTAMP:20230202T191213Z
CREATED:20221107T191852Z
DESCRIPTION:Topic: An Introduction to the Decoupling of Higher Dimensional\
, Zero Curvature Hypersurfaces\n\nSpeakers: D. Dominique Kemp\n\nAffiliati
on: Indiana University\; Member\, School of Mathematics\n\nThe ruled hyper
surfaces are distinguished by being comprised of lines.\nWhen this charact
eristic exists as a consequence of vanishing\nprincipal curvatures\, it yi
elds possibilities for comparison with\ncylinders extending over lower-dim
ensional surfaces. In this way\, the\ndecoupling for the cone was secured
by Bourgain-Demeter\, and the\ndecoupling for tangent developable surface
s in $R^3$ not too long\nafter. In this talk\, we show how the analysis ex
ecuted there may be\ngeneralized to the higher-dimensional analogues of th
e tangent\ndevelopables.
DTSTART:20221207T190000Z
DTEND:20221207T200000Z
LAST-MODIFIED:20221207T205520Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Harmonic Analysis Afternoon
URL:https://www.ias.edu/math/events/harmonic-analysis-afternoon
END:VEVENT
BEGIN:VEVENT
UID:64333432-3530-4962-a566-613663306664
DTSTAMP:20230202T191213Z
CREATED:20221107T193237Z
DESCRIPTION:Topic: A Fractal Uncertainty Principle for Discrete 2D Cantor S
ets\n\nSpeakers: Alex Cohen\n\nAffiliation: Massachusetts Institute of Tec
hnology\n\nA fractal uncertainty principle (FUP) states that a function `f
' and\nits Fourier transform cannot both be large on a fractal set. These
\nwere recently introduced by Semyon Dyatlov and collaborators in order\nt
o prove new results in quantum chaos. So far FUPs are only understood\nfor
fractal sets in R\, and fractal sets in $R^2$ remain elusive. In\nthis ta
lk\, we prove a sharp fractal uncertainty principle for Cantor\nsets in $Z
/NZ$ x $Z/NZ$\, a discrete model for $R^2$. The main tool is\na quantitati
ve form of Lang's conjecture from number theory due to\nRuppert and Beuker
s & Smyth.
DTSTART:20221207T201500Z
DTEND:20221207T211500Z
LAST-MODIFIED:20221201T130547Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Harmonic Analysis Afternoon
URL:https://www.ias.edu/math/events/harmonic-analysis-afternoon-0
END:VEVENT
BEGIN:VEVENT
UID:37616230-3733-4765-a632-633534643130
DTSTAMP:20230202T191213Z
CREATED:20220907T173605Z
DESCRIPTION:Topic: Three Things About Polynomials\n\nSpeakers: Ruixiang Zha
ng\n\nAffiliation: University of California\n\nI will talk about three int
eresting ingredients that goes into the\nresults on H\'{o}rmander type ope
rators I presented at Princeton\n(joint with Shaoming Guo and Hong Wang).
They are all related to\nalgebraic or geometric properties of multivariate
polynomials.
DTSTART:20221207T213000Z
DTEND:20221207T223000Z
LAST-MODIFIED:20221213T184201Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Analysis & Mathematical Physics
URL:https://www.ias.edu/math/events/analysis-mathematical-physics-5
END:VEVENT
BEGIN:VEVENT
UID:36363539-3064-4463-b864-383733613337
DTSTAMP:20230202T191213Z
CREATED:20220810T131338Z
DESCRIPTION:Topic: Bi-Lipschitz Equivalence to the Euclidean Space\n\nSpeak
ers: Yi Wang\n\nAffiliation: Visitor\, School of Mathematics \n\nIn dimens
ion two\, Urs Lang and Mario Bonk proved that a surface\,\nhomeomorphic to
the plane\, is bi-Lipschitz to the Euclidean space if\nits total Gauss cu
rvature is smaller than that of the hemisphere. In\nthis talk\, I will exp
lain what is known in higher dimensions and what\nis expected to be true.
DTSTART:20221207T230000Z
DTEND:20221208T010000Z
LAST-MODIFIED:20221205T133738Z
LOCATION:Birch Garden\, Simons Hall
SUMMARY:Mathematical Conversations
URL:https://www.ias.edu/math/events/mathematical-conversations-247
END:VEVENT
BEGIN:VEVENT
UID:36376537-3438-4537-a136-623533666433
DTSTAMP:20230202T191213Z
CREATED:20221026T143811Z
DESCRIPTION:
DTSTART:20221208T180000Z
DTEND:20221208T200000Z
LAST-MODIFIED:20221215T184607Z
LOCATION:Rubenstein Commons | Meeting Room 5
SUMMARY:Reading Seminar on Alexandrov Geometry
URL:https://www.ias.edu/events/reading-seminar-alexandrov-geometry-4
END:VEVENT
BEGIN:VEVENT
UID:62326532-6436-4434-b730-383533326236
DTSTAMP:20230202T191213Z
CREATED:20220830T174456Z
DESCRIPTION:Topic: Quadratic Twists of Modular L-Functions\n\nSpeakers: Xia
nnan Li\n\nAffiliation: Kansas State University\n\nThe behavior of quadrat
ic twists of modular L-functions is at the\ncritical point is related both
to coefficients of half integer weight\nmodular forms and data on ellipti
c curves. Here we describe a proof\nof an asymptotic for the second momen
t of this family of L-functions\,\npreviously available conditionally on t
he Generalized Riemann\nHypothesis by the work of Soundararajan and Young.
Our proof depends\non deriving an optimal large sieve type bound.
DTSTART:20221208T213000Z
DTEND:20221208T223000Z
LAST-MODIFIED:20221215T184659Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Joint IAS/PU Number Theory Seminar
URL:https://www.ias.edu/math/events/joint-iaspu-number-theory-seminar-3
END:VEVENT
BEGIN:VEVENT
UID:64613463-6438-4334-b062-346363383232
DTSTAMP:20230202T191213Z
CREATED:20220907T175958Z
DESCRIPTION:Topic: Periodic Orbits and Birkhoff Sections of Stable Hamilton
ian Structures\n\nSpeakers: Robert Cardona\n\nAffiliation: Instituto de Ci
encias Matemáticas\, Madrid\n\nIn this talk\, we start by reviewing recent
results on the dynamics of\nReeb vector fields defined by contact forms o
n three-dimensional\nmanifolds\, and then introduce Reeb fields defined by
stable\nHamiltonian structures. These are more general and arise\, for\ni
nstance\, in stable regular energy level sets of Hamiltonian systems.\nWe
give a characterization of Reeb fields that are aperiodic or that\nhave fi
nitely many periodic orbits (under a certain nondegeneracy\nassumption). F
inally\, we give sufficient conditions for the existence\nof an adapted br
oken book decomposition or the existence of a Birkhoff\nsection. This is j
oint work with A. Rechtman.
DTSTART:20221209T141500Z
DTEND:20221209T154500Z
LAST-MODIFIED:20221209T184109Z
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-102
END:VEVENT
BEGIN:VEVENT
UID:36383936-3538-4435-b935-656465353035
DTSTAMP:20230202T191213Z
CREATED:20220901T174813Z
DESCRIPTION:Topic: Conformally Invariant Fields out of Brownian Loop Soups
\n\nSpeakers: Wei Qian\n\nAffiliation: City University of Hong Kong\n\nFor
each central charge $c\in (0\,1]$\, we construct a conformally\ninvariant
field which is a measurable function of the local time field\n$\mathcal{L
}$ of the Brownian loop soup with intensity $c$ and i.i.d.\nsigns given to
each cluster. This field is canonically associated to\n$\mathcal{L}$\, in
a sense which is similar to the isomorphism theory\nthat associates the G
aussian free field to the loop soup with critical\nintensity. Isomorphisms
between Brownian motions and random fields\nwere previously developed by
Symanzik\, Brydges-Fröhlich-Spencer\,\nDynkin and Le Jan in several differ
ent settings.\n\nIn a key intermediate step\, we obtain the crossing expon
ent for the\nevent that a cluster in the subcritical loop soup passes near
a given\npoint. Among other things\, it allows us to deduce that the Mink
owski\ngauge function of a cluster in a loop soup with intensity $c\in\n(0
\,1)$\, which is $t^2 f(t)$ for some $f(t)=|\log t|^{1-c/2+o(1)}$.\n\nIn t
he end\, I will present several conjectures about this family of\nfields.
This talk is based on joint works in progress with Antoine\nJego (EPFL) an
d Titus Lupu (CNRS).
DTSTART:20221209T161500Z
DTEND:20221209T171500Z
LAST-MODIFIED:20221209T184437Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Probability Seminar
URL:https://www.ias.edu/math/events/probability-seminar-10
END:VEVENT
BEGIN:VEVENT
UID:63636531-6435-4435-b236-643363326432
DTSTAMP:20230202T191213Z
CREATED:20221014T131613Z
DESCRIPTION:
DTSTART:20221209T180000Z
DTEND:20221209T200000Z
LAST-MODIFIED:20221202T190003Z
LOCATION:Rubenstein Commons | Meeting Room 5
SUMMARY:Milnor Conjecture Learning Seminar
URL:https://www.ias.edu/math/events/milnor-conjecture-learning-seminar-1
END:VEVENT
BEGIN:VEVENT
UID:66303264-3262-4235-a335-366132373232
DTSTAMP:20230202T191213Z
CREATED:20221129T165044Z
DESCRIPTION:Topic: How Small Can a Group or a Graph be to Admit a Non-Trivi
al Poisson Boundary?\n\nSpeakers: Anna Erschler\n\nAffiliation: École norm
ale supérieure\n\nWe review results about random walks on groups\, discuss
ing results and\nconjectures relating critical constant for recurrence/tra
nsience\,\ngrowth and Poisson boundary. \n\nMuch less is known about behav
ior of random walks on Schreier graphs.\nSince any regular graph is a Schr
eier graph\, well known\ncounterexamples show that these random walks\, in
contrast with group\ncase\, do not enjoy structural results such as entr
opy criterion. It\nis well known that for 'very small' graphs (of at most
quadratic\ngrowth) simple random walks are recurrent\, and thus have trivi
al\nboundary. It turns out that if we allow infinitely supported\nmeasure
s\, the properties of the random walk can reflect better some\ngroup theor
etic properties. \n\nIn a work in progress with J. Frisch\, N. Matte Bon a
nd T. Zheng we\nstudy random walks on Schreier graphs. Our examples inclu
de random\nwalks on Grigorchuk groups. These groups\, starting from being
a\ncounter example to Milnor question about subexponential growth\, are\nk
nown to be a source of somehow counterintuitive phenomena. Studying\ntheir
Schreier graphs\, we show that even the smallest example among\npossible
infinite Schreier graphs\, the ray\, may admit (infinitely\nsupported ) m
easures with non-trivial boundary. Such measures can be\nchosen to be symm
etric\, of finite entropy with the boundary isomorphic\nto standard Lebesg
ue space.
DTSTART:20221209T183000Z
DTEND:20221209T193000Z
LAST-MODIFIED:20221209T184813Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Group Theory/Dynamics Talk
URL:https://www.ias.edu/math/events/group-theorydynamics-talk
END:VEVENT
BEGIN:VEVENT
UID:33336535-3033-4432-b039-626631636230
DTSTAMP:20230202T191213Z
CREATED:20220808T184552Z
DESCRIPTION:Topic: Optimization-Friendly Generic Mechanisms Without Money\n
\nSpeakers: Mark Braverman\n\nAffiliation: Princeton University\n\nOur goa
l is to develop a generic framework for converting modern\ngradient-descen
t based optimization algorithms into mechanisms where\ninputs come from se
lf-interested agents.\n\nWe focus on aggregating preferences from n player
s in a context\nwithout money. Special cases of this setting include votin
g\,\nallocation of items by lottery\, and matching. Our key technical\ncon
tribution is a new meta-algorithm we call APEX (Adaptive Pricing\nEqualizi
ng Externalities). The framework is sufficiently general to be\ncombined w
ith any optimization algorithm that is based on local\nsearch.\n\nIn the t
alk I'll outline the algorithm\, and open problem/research\ndirections tha
t it raises.\n\nAs an application of the framework\, I will discuss a spec
ial case of\napplying the framework to the problem of one-sided allocation
with\nlotteries. In this case\, we obtain a strengthening of the 1979 res
ult\nby Hylland and Zeckhauser on allocation via a competitive equilibrium
\nfrom equal incomes (CEEI). The [HZ79] result posits that there is a\n(fr
actional) allocation and a set of item prices such that the\nallocation is
a competitive equilibrium given prices. We further show\nthat there is al
ways a reweighing of the players' utility values such\nthat running the st
andard unit-demand VCG with reweighed utilities\nleads to a HZ-equilibrium
prices. Interestingly\, not all HZ\ncompetitive equilibria come from VCG
prices.
DTSTART:20221212T161500Z
DTEND:20221212T171500Z
LAST-MODIFIED:20230120T183529Z
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-525
END:VEVENT
BEGIN:VEVENT
UID:36646335-3665-4563-b966-336563373065
DTSTAMP:20230202T191213Z
CREATED:20220830T155324Z
DESCRIPTION:Topic: Varieties of Markoff Type: Arithmetic\, Combinatorics\,
Dynamics\n\nSpeakers: Alexander Gamburd\n\nAffiliation: City University of
New York\; Member\, School of Mathematics\n\nThe Markoff equation $x^2+y^
2+z^2=3xyz$\, which arose in his\nspectacular thesis (1879)\, is ubiquitou
s in a tremendous variety of\ncontexts. After reviewing some of these\, we
will discuss (briefly)\nasymptotics of integer points\, and (in some deta
il) recent progress\ntowards establishing forms of strong approximation on
varieties of\nMarkoff type\, as well as ensuing implications\, diophantin
e and\ndynamical.
DTSTART:20221212T190000Z
DTEND:20221212T200000Z
LAST-MODIFIED:20221215T184802Z
LOCATION:Simonyi Hall 101 and Remote Access - see Zoom link below
SUMMARY:Members' Colloquium
URL:https://www.ias.edu/math/events/members-colloquium-41
END:VEVENT
BEGIN:VEVENT
UID:30623536-3962-4364-b431-353039643063
DTSTAMP:20230202T191213Z
CREATED:20220808T192106Z
DESCRIPTION:Topic: A Characterization of Multiclass Learnability\n\nSpeaker
s: Nataly Brukhim\n\nAffiliation: Princeton University\n\nA seminal result
in learning theory characterizes the PAC learnability\nof binary classes
through the VC dimension. Extending this\ncharacterization to the general
multiclass setting has been open since\nthe late 1980s.\n\nWe resolve this
problem by characterizing multiclass PAC learnability\nthrough the DS dim
ension\, a combinatorial dimension defined by Daniely\nand Shalev-Shwartz
(2014).\n\nThe classical characterization of the binary case boils down to
\nempirical risk minimization. In contrast\, our characterization of the\n
multiclass case involves a variety of algorithmic ideas\; these include\na
natural setting we call list PAC learning. In the list learning\nsetting\
, instead of predicting the label of a given unseen input\, the\ngoal is t
o provide a short list of labels which contains the correct\none with high
probability.\n\nOur second main result concerns the Natarajan dimension\,
which has\nbeen a central candidate for characterizing multiclass learnab
ility.\nThis dimension was introduced by Natarajan (1988) as a barrier for
PAC\nlearning. Whether the Natarajan dimension characterizes PAC\nlearnab
ility in general has been posed as an open question in several\npapers sin
ce. We provide a negative answer: we construct a\nnon-learnable class with
Natarajan dimension one.\n\nFor the construction\, we identify a fundamen
tal connection between\nconcept classes and topology. We crucially rely on
a deep and involved\ngeometric-group-theoretic construction by Januszkiew
icz and\nSwiatkowski. This proof provides another demonstration of the fru
itful\nlinks learning theory has with different areas in mathematics.\n\nJ
oint work with Daniel Carmon\, Irit Dinur\, Shay Moran and Amir\nYehudayof
f.
DTSTART:20221213T153000Z
DTEND:20221213T173000Z
LAST-MODIFIED:20230120T183615Z
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-522
END:VEVENT
BEGIN:VEVENT
UID:64356539-6563-4264-b138-313264373266
DTSTAMP:20230202T191213Z
CREATED:20220922T173246Z
DESCRIPTION:Topic: Exponential Mixing and Fractal Uncertainty\n\nSpeakers:
Osama Khalil\n\nAffiliation: University of Illinois Chicago\n\nThe Bowen-R
uelle conjecture predicts that geodesic flows on negatively\ncurved manifo
lds are exponentially mixing with respect to all their\nequilibrium states
. In a breakthrough in '98\, Dolgopyat pioneered a\nmethod rooted in the t
hermodynamic formalism that settled the\nconjecture for flows satisfying c
ertain strong regularity hypotheses.\nSoon after\, Liverani introduced a m
ore intrinsic refinement of\nDolgopyat's method which overcame these regul
arity limitations while\nsimultaneously producing more precise rates of mi
xing\, albeit at the\nprice of being limited to smooth invariant measures.
Despite these\nimportant developments\, the conjecture remains open in ge
neral even\nfor measures of maximal entropy. In this talk\, I will report
on work\nin progress where new ideas leveraging inverse theorems in additi
ve\ncombinatorics are introduced to overcome the limitations in Liverani's
\napproach in a concrete algebraic setting.
DTSTART:20221213T190000Z
DTEND:20221213T200000Z
LAST-MODIFIED:20221214T194039Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Special Year Research Seminar
URL:https://www.ias.edu/math/events/special-year-research-seminar-5
END:VEVENT
BEGIN:VEVENT
UID:38383733-6566-4934-b361-366261396336
DTSTAMP:20230202T191213Z
CREATED:20221108T182306Z
DESCRIPTION:Topic: Toward Classifying Reducts of the Complex Field\n\nSpeak
ers: Chieu-Minh Tran\n\nAffiliation: University of Notre Dame\n\nWe discus
s some recent progress on the model-theoretic problem of\nclassifying the
reducts of the complex field (with named parameters\nand up to interdefina
bility). The tools we use include Castle’s\nrecent solution of the Restric
ted Trichotomy Conjecture in\ncharacteristic 0 and a generalized sumproduc
t result from additive\ncombinatorics.
DTSTART:20221213T210000Z
DTEND:20221213T220000Z
LAST-MODIFIED:20221214T194107Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Special Year Research Seminar
URL:https://www.ias.edu/math/events/special-year-research-seminar-11
END:VEVENT
BEGIN:VEVENT
UID:64613461-3634-4933-a337-333830663734
DTSTAMP:20230202T191213Z
CREATED:20220907T174543Z
DESCRIPTION:Topic: Additive Energy of Regular Measures in One and Higher Di
mensions\, and the Fractal Uncertainty Principle\n\nSpeakers: Laura Cladek
\n\nAffiliation: von Neumann Fellow\, School Of Mathematics\n\nWe obtain n
ew bounds on the additive energy of (Ahlfors-David type)\nregular measures
in both one and higher dimensions\, which implies\nexpansion results for
sums and products of the associated regular\nsets\, as well as more genera
l nonlinear functions of these sets. As a\ncorollary of the higher-dimensi
onal results we obtains some new cases\nof the fractal uncertainty princip
le in odd dimensions. This is joint\nwork with Terence Tao.
DTSTART:20221214T200000Z
DTEND:20221214T210000Z
LAST-MODIFIED:20221214T211629Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Analysis & Mathematical Physics
URL:https://www.ias.edu/math/events/analysis-mathematical-physics-6
END:VEVENT
BEGIN:VEVENT
UID:38643836-6265-4337-b734-613265383462
DTSTAMP:20230202T191213Z
CREATED:20221110T141511Z
DESCRIPTION:Topic: Classical Turbulence as Quantum Geometry\n\nSpeakers: Al
exander Migdal\n\nAffiliation: New York University\, Abu Dhabi\n\nThe loop
equation for circulation PDF as functional of the loop\nshape is derived
from the Hopf equation. This equation is\n$\textbf{exactly}$ equivalent to
the Schrödinger equation in loop\nspace\, with viscosity playing the role
of Planck's constant. This\nequivalence\, in principle\, allows direct nu
merical simulation\nof classical turbulence on quantum computers. Topologi
cally stable\ntime-dependent Euler flows\, which we call Kelvinons\, are i
ntroduced.\nThey have a conserved velocity circulation around\n$\textbf{st
ationary}$ loop. Kelvinons are fixed points of the loop\nequation in the W
KB limit of vanishing viscosity at fixed energy\ndissipation\, which corre
sponds to strong turbulence. This makes them\nresponsible for asymptotic P
DF tails of velocity circulation\,\n$\textbf{perfectly matching numerical
simulations}$. Area law and the\nasymptotic scaling law for mean circulati
on at a large area are\nderived from the loop equation. The representation
of the solution of\nthe loop equation in terms of a singular stochastic e
quation for\nmomentum loop trajectory is presented.
DTSTART:20221214T213000Z
DTEND:20221214T223000Z
LAST-MODIFIED:20221215T131635Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Analysis and Mathematical Physics
URL:https://www.ias.edu/math/events/analysis-and-mathematical-physics
END:VEVENT
BEGIN:VEVENT
UID:65613739-3235-4037-a434-633838323933
DTSTAMP:20230202T191213Z
CREATED:20220810T131447Z
DESCRIPTION:Topic: Rational and Integral Points on Elliptic Curves\n\nSpeak
ers: Wei Ho\n\nAffiliation: Visiting Professor\, School of Mathematics \n
\nWe discuss some questions that arise when studying rational and\nintegra
l points on curves\, especially elliptic curves. For example\,\nfor a 'ran
dom' such curve\, how many rational points should it have?\nThis will be a
talk suitable for a general math audience.
DTSTART:20221214T230000Z
DTEND:20221215T010000Z
LAST-MODIFIED:20221209T163406Z
LOCATION:Birch Garden\, Simons Hall
SUMMARY:Mathematical Conversations
URL:https://www.ias.edu/math/events/mathematical-conversations-248
END:VEVENT
BEGIN:VEVENT
UID:32366562-6661-4936-a566-353530386466
DTSTAMP:20230202T191213Z
CREATED:20221026T143857Z
DESCRIPTION:
DTSTART:20221215T180000Z
DTEND:20221215T200000Z
LAST-MODIFIED:20221216T201528Z
LOCATION:Rubenstein Commons | Meeting Room 5
SUMMARY:Reading Seminar on Alexandrov Geometry
URL:https://www.ias.edu/events/reading-seminar-alexandrov-geometry-5
END:VEVENT
BEGIN:VEVENT
UID:66363136-6632-4565-b038-326165613162
DTSTAMP:20230202T191213Z
CREATED:20220830T175213Z
DESCRIPTION:Topic: A Motivic Circle Method\n\nSpeakers: Timothy Browning\n
\nAffiliation: Institute of Science and Technology Austria\; Member\, Scho
ol of Mathematics\n\nThe circle method has been a versatile tool in the st
udy of rational\npoints on hypersurfaces. More recently\, a version of the
method over\nfunction fields\, combined with spreading out techniques\, h
as led to\ninformation about moduli spaces of rational curves on hypersurf
aces. I\nwill report on joint work with Margaret Bilu on implementing a ci
rcle\nmethod with an even more geometric flavour\, where the computations
\ntake place in a suitable Grothendieck ring of varieties. We establish\na
nalogues for the key steps of the method\, enabling us to approximate\nthe
classes of the above moduli spaces directly without recourse to\npoint co
unting.\n\n
DTSTART:20221215T213000Z
DTEND:20221215T223000Z
LAST-MODIFIED:20221216T201430Z
LOCATION:Princeton University\, Fine Hall 224
SUMMARY:Joint IAS/PU Number Theory Seminar
URL:https://www.ias.edu/math/events/joint-iaspu-number-theory-seminar-8
END:VEVENT
BEGIN:VEVENT
UID:31313738-6562-4466-b031-313231383233
DTSTAMP:20230202T191213Z
CREATED:20220907T180025Z
DESCRIPTION:Topic: Hofer's Geometry and Braid Stability\n\nSpeakers: Marcel
o Alves\n\nAffiliation: University of Antwerp\n\nThe Hofer’s metric dH is
a remarkable bi-invariant metric on the\ngroup of Hamiltonian diffeomorphi
sms of a symplectic manifold. In my\ntalk\, I will explain a result\, obta
ined jointly with Matthias Meiwes\,\nwhich says that the braid type of a s
et of periodic orbits of a\nHamiltonian diffeomorphism on a closed surface
is stable under\nperturbations that are sufficiently small with respect t
o Hofer’s\nmetric. As a consequence of this we obtained that the topologic
al\nentropy\, seen as a function on the space of Hamiltonian\ndiffeomorphi
sms of a closed surface\, is lower semi-continuous with\nrespect to the Ho
fer metric dH. \n\nIf time permits\, I will explain related questions for
Reeb flows on\n3-manifolds and Hamiltonian diffeomorphisms on higher-dime
nsional\nsymplectic manifolds\, and recent progress on these problems obta
ined\nby myself\, Meiwes\, Abror Pirnapasov and Lucas Dahinden.
DTSTART:20221216T141500Z
DTEND:20221216T154500Z
LAST-MODIFIED:20221216T141736Z
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-103
END:VEVENT
BEGIN:VEVENT
UID:39373232-3066-4737-a433-303332653765
DTSTAMP:20230202T191213Z
CREATED:20220901T174839Z
DESCRIPTION:Topic: Almost Sharp Sharpness for Boolean Percolation\n\nSpeake
rs: Barbara Dembin\n\nAffiliation: ETH Zurich\n\nWe consider a Poisson poi
nt process on $R^d$ with intensity lambda for\n$d>=2$. On each point\, we
independently center a ball whose radius is\ndistributed according to some
power-law distribution mu. When the\ndistribution mu has a finite d-momen
t\, there exists a non-trivial\nphase transition in lambda associated to t
he existence of an infinite\nconnected component of balls. We aim here to
prove subcritical\nsharpness\, that is\, that the subcritical regime behav
es well in some\nsense. For distribution mu with a finite $5d−3-moment$\,
\nDuminil-Copin--Raoufi--Tassion proved subcritical sharpness using a\nran
domized algorithm. We prove here using different methods that the\nsubcrit
ical regime is sharp for all but a countable number of\npower-law distribu
tions. Joint work with Vincent Tassion.
DTSTART:20221216T161500Z
DTEND:20221216T171500Z
LAST-MODIFIED:20221216T180147Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Probability Seminar
URL:https://www.ias.edu/math/events/probability-seminar-11
END:VEVENT
BEGIN:VEVENT
UID:30376239-6661-4736-b963-333139636262
DTSTAMP:20230202T191213Z
CREATED:20200110T181736Z
DESCRIPTION:
DTSTART:20221216T230000Z
DTEND:20221216T230000Z
LAST-MODIFIED:20210104T030117Z
LOCATION:
SUMMARY:IAS School of Mathematics Term I Ends
URL:https://www.ias.edu/math/events/ias-school-mathematics-term-i-ends-1
END:VEVENT
BEGIN:VEVENT
UID:38623633-6664-4365-b865-383034633939
DTSTAMP:20230202T191213Z
CREATED:20221010T175042Z
DESCRIPTION:This NSF-funded workshop supported the participation of\nunderr
epresented groups in the mathematical sciences. Talks featured\nsenior pr
ofessionals about their experiences in academia\, industry\,\nand governme
nt\, as well as current research by young mathematicians.\nThe workshop p
rovided a supportive environment for meeting peers and\nsenior role models
. It was particularly aimed at graduate students\nand young postdocs.\n\n
ORGANIZERS\nWEI HO\, IAS/Princeton University/University of Michigan\nROBE
RT MEGGINSON\, University of Michigan\nAKSHAY VENKATESH\, Institute for Ad
vanced Study\n\nSPEAKERS\nSUSAN D'AGOSTINO\, Inside Higher Ed\nRAJIV GANDH
I\, Rutgers University Camden\nRACHEL GREENFELD\, Institute for Advanced S
tudy\nPETER HAINE\, Institute for Advanced Study\nMARGARET HOLEN\, Princet
on University\nJUAN MEZA\, National Science Foundation\nARTANE SIAD\, IAS/
Princeton University\nKAREN UHLENBECK\, Institute for Advanced Study\n \n
\nAgenda - attendance is by invitation only\nAll talks will be in Simonyi
Hall Lecture Hall 101\n\nSPRING OPPORTUNITIES WORKSHOP 2023\n\nTOPIC: A Re
trospective View from the Trenches\n\nSPEAKER: Karen Uhlenbeck - Distingui
shed Visiting Professor\, School\nof Mathematics\n\nTIME/ROOM: 10:00 AM -
11:10 AM / Simonyi Hall 101 and Remote Access\n\nABSTRACT\nURL: https://ww
w.ias.edu/math/events/spring-opportunities-workshop-2023\n[https://www.ias
.edu//math/events/spring-opportunities-workshop-2023]\n\n \n\nTOPIC: An Ac
cidental Mathematician: Stories of a Journey Through\nSTEM-Land as a Minor
ity\n\nSPEAKER: Juan Meza - University of California\, Merced\n\nTIME/ROOM
: 11:45 AM - 12:55 PM / Simonyi Hall 101 and Remote Access\n\nABSTRACT\nUR
L: https://www.ias.edu/math/events/spring-opportunities-workshop-2023-0\n[
https://www.ias.edu//math/events/spring-opportunities-workshop-2023-0]\n\n
\n\nTOPIC: Reconstruction in Algebraic Geometry\n\nSPEAKER: Peter James H
aine - Member\, School of Mathematics\n\nTIME/ROOM: 02:15 PM - 03:25 PM /
Simonyi Hall 101 and Remote Access\n\nABSTRACT\nURL: https://www.ias.edu/m
ath/events/spring-opportunities-workshop-2023-1\n[https://www.ias.edu//mat
h/events/spring-opportunities-workshop-2023-1]\n\n \n\nTOPIC: A Mathematic
ian’s Path to Public Science Journalism\n\nSPEAKER: Susan Dagostino - Insi
de Higher Ed\n\nTIME/ROOM: 03:30 PM - 04:40 PM / Simonyi 101 and Remote Ac
cess\n\nABSTRACT\nURL: https://www.ias.edu/math/events/spring-opportunitie
s-workshop-2023-2\n[https://www.ias.edu//math/events/spring-opportunities-
workshop-2023-2]\n\n \n\nFRIDAY\, JANUARY 13 2023\n\nTOPIC: The Structure
of Tilings\n\nSPEAKER: Rachel Greenfeld - Member\, School of Mathematics\n
\nTIME/ROOM: 10:00 AM - 11:10 AM / Simonyi Hall 101 and Remote Access\n\nA
BSTRACT\nURL: https://www.ias.edu/math/events/spring-opportunities-worksho
p-2023-3\n[https://www.ias.edu//math/events/spring-opportunities-workshop-
2023-3]\n\n \n\nTOPIC: Math\, Finance & Decisions: Career Paths in Financi
al Services\n\nSPEAKER: Margaret Holen - Princeton University\n\nTIME/ROOM
: 11:45 AM - 12:55 PM / Simonyi 101 and Remote Access\n\nABSTRACT\nURL: ht
tps://www.ias.edu/math/events/spring-opportunities-workshop-2023-6\n[https
://www.ias.edu//math/events/spring-opportunities-workshop-2023-6]\n\n \n\n
TOPIC: Affine symmetric spaces and 2-torsion in the class group of\nunit-m
onogenized cubic fields\n\nSPEAKER: Artane Jeremie Siad - Member\, School
of Mathematics\n\nTIME/ROOM: 02:15 PM - 03:25 PM / Simonyi 101 and Remote
Access\n\nABSTRACT\nURL: https://www.ias.edu/math/events/spring-opportunit
ies-workshop-2023-5\n[https://www.ias.edu//math/events/spring-opportunitie
s-workshop-2023-5]\n\n \n\nTOPIC: From Potential to Promise: Developing Sc
holars\, One Eureka\nMoment at a Time\n\nSPEAKER: Rajiv Gandhi - Rutgers U
niversity\, Camden\n\nTIME/ROOM: 03:30 PM - 04:40 PM / Simonyi Hall 101 an
d Remote Access\n\nABSTRACT\nURL: https://www.ias.edu/math/events/spring-o
pportunities-workshop-2023-4\n[https://www.ias.edu//math/events/spring-opp
ortunities-workshop-2023-4]\n\n \n\nSPONSORED BY THE NATIONAL SCIENCE FOUN
DATION
DTSTART:20230112T140000Z
DTEND:20230113T220000Z
LAST-MODIFIED:20230119T193756Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Spring Opportunities Workshop 2023
URL:https://www.ias.edu/math/events/so
END:VEVENT
BEGIN:VEVENT
UID:38656530-6532-4462-a261-636630653030
DTSTAMP:20230202T191213Z
CREATED:20221129T155646Z
DESCRIPTION:Topic: A Retrospective View from the Trenches\n\nSpeakers: Kare
n Uhlenbeck\n\nAffiliation: Distinguished Visiting Professor\, School of M
athematics\n\nAbstract: The twenty years between when I started college an
d my first\nvisit to IAS saw great changes in opportunities for women in\n
mathematics\, as in most professions. Concurrent with this was the\nbirth
of a new field of global or geometric analysis. It was a long\ntime ago\,
and my perspective is skewed as I was in the middle of both.\nHowever\, it
might be useful to younger mathematicians to recognize\nthat we are alway
s in the midst of change. I will present some of my\nrecollections from th
e years 1960-1980.
DTSTART:20230112T150000Z
DTEND:20230112T161000Z
LAST-MODIFIED:20230119T193853Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Spring Opportunities Workshop 2023
URL:https://www.ias.edu/math/events/spring-opportunities-workshop-2023
END:VEVENT
BEGIN:VEVENT
UID:63653762-3065-4137-b833-336366386339
DTSTAMP:20230202T191213Z
CREATED:20221129T161101Z
DESCRIPTION:Topic: An Accidental Mathematician: Stories of a Journey Throug
h STEM-Land as a Minority\n\nSpeakers: Juan Meza\n\nAffiliation: Universit
y of California\, Merced\n\nAbstract: Being a scientist or mathematician c
an be challenging\, and\nbeing a minority mathematician even more so. My p
ath hasn’t always\nbeen easy\, but it has been worthwhile and fulfilling.
However\, in some\nsense\, I believe that I ended up where I am through a
series of\nfortunate events - that in fact I am an accidental mathematicia
n.\nThrough a series of personal stories\, I will share some strategies an
d\nlessons I’ve learned that have helped me in my career. Some of these\nl
essons include: 1) the importance of preparation\, 2) finding the\nright b
alance of technical and interpersonal skills\, 3) practicing\npersistence
and patience\, 4) valuing and respecting your own time and\n5) the realiza
tion that success requires risk-taking and going outside\none’s comfort zo
ne. All of these\, will be (by necessity) through the\nlens of an underrep
resented minority in a highly technical field\, but\nI hope that they are
useful to others as well.
DTSTART:20230112T164500Z
DTEND:20230112T175500Z
LAST-MODIFIED:20230119T193938Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Spring Opportunities Workshop 2023
URL:https://www.ias.edu/math/events/spring-opportunities-workshop-2023-0
END:VEVENT
BEGIN:VEVENT
UID:65313033-6135-4134-b631-316263323066
DTSTAMP:20230202T191213Z
CREATED:20221117T141343Z
DESCRIPTION:
DTSTART:20230112T180000Z
DTEND:20230112T200000Z
LAST-MODIFIED:20221117T141634Z
LOCATION:Rubenstein Commons | Meeting Room 5
SUMMARY:Reading Seminar on Alexandrov Geometry
URL:https://www.ias.edu/events/reading-seminar-alexandrov-geometry-7
END:VEVENT
BEGIN:VEVENT
UID:37613537-3936-4239-b634-656538383066
DTSTAMP:20230202T191213Z
CREATED:20221129T161251Z
DESCRIPTION:Topic: Reconstruction in Algebraic Geometry\n\nSpeakers: Peter
James Haine\n\nAffiliation: Member\, School of Mathematics\n\nABSTRACT A c
lassical theorem of Neukirch and Uchida says that number\nfields are compl
etely determined by their absolute Galois groups. One\nmight wonder about
analogous results for algebraic varieties: in what\nsituations can varieti
es be “reconstructed” from a group or other\nalgebraic invariant? In this
talk\, we’ll survey different approaches\nto this question as well as disc
uss some recent advances from our\njoint work with Barwick and Glasman.
DTSTART:20230112T191500Z
DTEND:20230112T202500Z
LAST-MODIFIED:20230119T194005Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Spring Opportunities Workshop 2023
URL:https://www.ias.edu/math/events/spring-opportunities-workshop-2023-1
END:VEVENT
BEGIN:VEVENT
UID:35393061-6566-4138-b730-646431653038
DTSTAMP:20230202T191213Z
CREATED:20221129T161648Z
DESCRIPTION:Topic: A Mathematician’s Path to Public Science Journalism\n\nS
peakers: Susan D'Agostino\n\nAffiliation: Inside Higher Ed\n\nAbstract: S
usan D’Agostino earned a PhD in mathematics at\nDartmouth College\, taught
for years as a tenured mathematics\nprofessor\, and subsequently left aca
deme for science journalism. Her\nmath and science stories have since been
published in_ The Atlantic\,\nThe Washington Post\, Scientific American\,
Wired\, Quanta Magazine\,\nNational Public Radio\, BBC_\, and _Inside Hig
her Ed_ where she is the\ntechnology reporter. But how—and\, importantly\,
why—does a\nmathematician become a journalist? In this talk\, Susan will
share some\nof her articles and provide evidence that\, in this time of sc
ience\ndenialism\, mathematicians who write about math and science in\nnew
spapers and magazines have an opportunity to “teach” in a way\nthat boosts
science literacy and enhances the public good. She will\nalso highlight p
ieces of her journey\, including challenges and rewards\nalong the way.
DTSTART:20230112T203000Z
DTEND:20230112T214000Z
LAST-MODIFIED:20230119T194034Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Spring Opportunities Workshop 2023
URL:https://www.ias.edu/math/events/spring-opportunities-workshop-2023-2
END:VEVENT
BEGIN:VEVENT
UID:36663163-3431-4139-b239-353463326335
DTSTAMP:20230202T191213Z
CREATED:20221205T201153Z
DESCRIPTION:Topic: Orbifolds and Systolic Inequalities\n\nSpeakers: Christi
an Lange\n\nAffiliation: Mathematisches Institut der Universität München\n
\nIn this talk\, I will first discuss some instances in which orbifolds\no
ccur in geometry and dynamics\, in particular\, in the context of\nbilliar
ds and systolic inequalities. Then I will present topological\nconditions
for an orbifold to be a manifold together with applications\nto foliations
and to Besse geodesic and Reeb flows (joint work with\nManuel Amann\, Mar
c Kegel and Marco Radeschi). Here a flow is called\nBesse if all its orbit
s are periodic. Such flows are related to\nsystolic inequalities. Namely\,
I will explain a characterization of\ncontact forms on 3-manifolds whose
Reeb flow is Besse as local\nmaximizers of certain ''higher' systolic rati
os\, and mention other\nrelated systolic-like inequalities (joint work wit
h Alberto\nAbbondandolo\, Marco Mazzucchelli and Tobias Soethe).
DTSTART:20230113T141500Z
DTEND:20230113T154500Z
LAST-MODIFIED:20230113T160808Z
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-105
END:VEVENT
BEGIN:VEVENT
UID:32633139-6537-4161-a461-646230353165
DTSTAMP:20230202T191213Z
CREATED:20221129T162027Z
DESCRIPTION:Topic: The Structure of Tilings\n\nSpeakers: Rachel Greenfeld\n
\nAffiliation: Member\, School of Mathematics
DTSTART:20230113T150000Z
DTEND:20230113T161000Z
LAST-MODIFIED:20230119T194101Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Spring Opportunities Workshop 2023
URL:https://www.ias.edu/math/events/spring-opportunities-workshop-2023-3
END:VEVENT
BEGIN:VEVENT
UID:61613664-3962-4463-b036-656561363636
DTSTAMP:20230202T191213Z
CREATED:20221129T165254Z
DESCRIPTION:Topic: Math\, Finance & Decisions: Career Paths in Financial Se
rvices \n\nSpeakers: Margaret Holen\n\nAffiliation: Princeton University\n
\nAbstract: We face financial choices every day. From buying a morning\nc
offee\, to an online shopping errand in the afternoon\, we are asked\n“Cas
h\, Credit or Debit?” and “Pay Now or Later?” We\noccasionally face bigge
r decisions\, like whether to take out a car\nloan\, or to open a retireme
nt account\, or to take out a life insurance\npolicy.\n\nThe finance indus
try offers you\, as mathematicians\, a rich array of\ncareer opportunities
. Many of those include working with new\ntechnologies\, complex data sets
\, and novel algorithms. Whether or not\nyou enter the industry\, we all p
lay roles as consumers and as citizens\ninfluencing regulations.\n\nThis t
alk will share an overview of the finance sector\, core\nmathematical idea
s important in it\, and my career path through it. My\ngoal is to inspire
you make the most of your math backgrounds to shape\nyour financial future
s and the future of this industry.
DTSTART:20230113T164500Z
DTEND:20230113T175500Z
LAST-MODIFIED:20230119T194131Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Spring Opportunities Workshop 2023
URL:https://www.ias.edu/math/events/spring-opportunities-workshop-2023-6
END:VEVENT
BEGIN:VEVENT
UID:65633435-3339-4035-a134-383235333431
DTSTAMP:20230202T191213Z
CREATED:20221129T165059Z
DESCRIPTION:Topic: Affine symmetric spaces and 2-torsion in the class group
of unit-monogenized cubic fields\n\nSpeakers: Artane Jeremie Siad\n\nAffi
liation: Member\, School of Mathematics\n\n_Abstract: Davenport’s lemma ha
s been a crucial ingredient in recent\napplications of geometry of numbers
to arithmetic statistics. The\nlemma estimates\, with error-term\, the nu
mber of lattice points\ncontained in bounded semi-algebraic regions of $\m
athbb{R}^n$ in terms\nof the volumes of these regions and their projection
s to coordinate\nsubspaces. In this talk\, I will describe an application
of geometry of\nnumbers to a non-Euclidean setting (in which Davenport’s l
emma does\nnot apply) by explaining how to bound the average number of 2-t
orsion\nelements in the class group of unit-monogenized cubic fields. The
\nproof proceeds by replacing Davenport’s lemma with counting results\nfor
affine symmetric spaces. Joint work with Iman Setayesh\, Arul\nShankar\,
and Ashvin Swaminathan._
DTSTART:20230113T191500Z
DTEND:20230113T202500Z
LAST-MODIFIED:20230119T194159Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Spring Opportunities Workshop 2023
URL:https://www.ias.edu/math/events/spring-opportunities-workshop-2023-5
END:VEVENT
BEGIN:VEVENT
UID:36663235-3062-4266-b935-656232383933
DTSTAMP:20230202T191213Z
CREATED:20221129T164736Z
DESCRIPTION:Topic: From Potential to Promise: Developing Scholars\, One Eur
eka Moment at a Time\n\nSpeakers: Rajiv Gandhi\n\nAffiliation: Rutgers Uni
versity\, Camden\n\nAbstract: At Rutgers University-Camden\, the student b
ody is quite\ndiverse\, with many first-generation college students and st
udents from\nunderrepresented minority groups. Our students face financial
\nchallenges - a significantly large fraction of Rutgers-Camden students\n
work at least part-time while pursuing coursework. Since the inception\nof
the computer science department in the nineties until 2009 almost\nno stu
dent from the computer science department at Rutgers-Camden had\ngone to p
ursue graduate studies in computer science or related fields.\nIn the last
12 years or so\, several students have gone to some of\nthe top graduate
programs in the country. In this talk\, I will tell\nthe story of our wor
k with these truly remarkable undergraduate\nstudents\, who despite many o
dds have achieved success that is\nunprecedented for the Camden campus. I
will discuss the challenges\nthat we faced and some ideas that have worked
well for us. We have\nbeen applying some of these ideas in our work with
high school\nstudents as part of the Program for Algorithmic and Combinato
rial\nThinking (PACT) [http://www.algorithmicthinking.org]\, which we star
ted\nin 2009.
DTSTART:20230113T203000Z
DTEND:20230113T214000Z
LAST-MODIFIED:20230119T194229Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Spring Opportunities Workshop 2023
URL:https://www.ias.edu/math/events/spring-opportunities-workshop-2023-4
END:VEVENT
BEGIN:VEVENT
UID:33396234-3830-4833-b437-353661323463
DTSTAMP:20230202T191213Z
CREATED:20200110T181823Z
DESCRIPTION:
DTSTART:20230116T140000Z
DTEND:20230116T140000Z
LAST-MODIFIED:20210104T030214Z
LOCATION:
SUMMARY:IAS School of Mathematics Term II Begins
URL:https://www.ias.edu/math/events/ias-school-mathematics-term-ii-begins-1
END:VEVENT
BEGIN:VEVENT
UID:38653731-3534-4563-b464-613833666539
DTSTAMP:20230202T191213Z
CREATED:20230103T154918Z
DESCRIPTION:Topic: On Furstenberg Systems for Some Aperiodic Multiplicative
Functions\n\nSpeakers: Mariusz Lemanczyk\n\nAffiliation: Nicolaus Coperni
cus University in Toruń\; Member\, School of Mathematics\n\nThe Chowla con
jecture from 1965 predicts that all autocorrelations of\nthe Liouville fun
ction vanish. In fact\, after an adaptation\, the\nChowla conjecture was e
xpected to hold for all aperiodic\nmultiplicative functions with values in
the unit disc (cf. Elliott’s\nconjecture from the 1990s). But in 2015\, M
atom\'aki\, Radziwi\l\l and\nTao gave a counterexample to Elliott’s conjec
ture by constructing\naperiodic multiplicative functions (bounded by 1) fo
r which (already)\nthe Chowla conjecture of order 2 fails. During the talk
I will explain\nhowever that the Chowla conjecture does not disappear ent
irely\, in\nfact\, for Matomäki\, Radziwiłł\, Tao’s functions it holds alo
ng a\nsubsequence. The result is achieved by detecting certain dynamical\n
systems (of algebraic origin)\,\ncalled Furstenberg systems\, obtained by
examining autocorrelations\nalong subsequences. Moreover\, the same techni
que disproves a recent\nconjecture by Frantzikinakis and Host concerning l
ogarithmic\nautocorrelations of multiplicative functions. The talk is base
d on my\njoint work with Alex Gomilko and Thierry de la Rue.
DTSTART:20230117T190000Z
DTEND:20230117T200000Z
LAST-MODIFIED:20230131T140904Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Special Year Research Seminar
URL:https://www.ias.edu/math/events/special-year-research-seminar-15
END:VEVENT
BEGIN:VEVENT
UID:33663135-3931-4636-b235-356465653531
DTSTAMP:20230202T191213Z
CREATED:20230103T155246Z
DESCRIPTION:Topic: Bounds in the Inverse Theorem for the Gowers Norms (for
Certain Groups)\n\nSpeakers: Frederick Manners\n\nAffiliation: University
of California\, San Diego\; von Neumann Fellow\, School of Mathematics\n\n
The inverse theorem for the Gowers U^{s+1}-norms has a central place\nin m
odern additive combinatorics\, but all known proofs of it are\ndifficult a
nd most do not give effective bounds.\n\nOver this seminar and the next\,
I will give an outline of a proof\ngiving plausible bounds\, in the case o
f groups Z/NZ where N is a\nlarge prime. Many of the key ideas are presen
t in the cases s=2 and\ns=3\, so I will focus on these for simplicity. Th
e argument splits\ninto an 'algebraic part' which comprises a structure th
eorem for\n'local polynomials'\, and an 'analytic part' which uses this to
deduce\nthe inverse theorem\; the two may be taken somewhat separately.\n
\nI will assume some basic familiarity with the definition of the Gowers\n
norms\, and maybe some basic statements related to the inverse theorem\,\n
but not much else.
DTSTART:20230118T153000Z
DTEND:20230118T170000Z
LAST-MODIFIED:20230131T141019Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Special Year Learning Seminar
URL:https://www.ias.edu/math/events/special-year-learning-seminar-8
END:VEVENT
BEGIN:VEVENT
UID:30366435-6361-4733-a434-313162316162
DTSTAMP:20230202T191213Z
CREATED:20221116T184757Z
DESCRIPTION:Topic: Regularity of Vortex and SQG Patches\n\nSpeakers: Alexan
der Kiselev\n\nAffiliation: Duke University\n\nI will review some recent p
rogress on regularity properties of vortex\nand SQG patches. In particular
\, I will present an example of a vortex\npatch with continuous initial cu
rvature that immediately becomes\ninfinite but returns to $(C^2)$ class at
all integer times only\nwithout being time periodic. The proof involves d
erivation of a new\nsystem describing the patch evolution in terms of arc-
length and\ncurvature. The talk is based on a work joint with Xiaoyutao Lu
o.
DTSTART:20230118T200000Z
DTEND:20230118T210000Z
LAST-MODIFIED:20230119T150857Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Analysis and Mathematical Physics
URL:https://www.ias.edu/math/events/analysis-and-mathematical-physics-0
END:VEVENT
BEGIN:VEVENT
UID:32623166-6139-4464-a132-633961656166
DTSTAMP:20230202T191213Z
CREATED:20221205T203718Z
DESCRIPTION:Topic: Arnold Conjecture Over Integers\n\nSpeakers: Shaoyun Bai
\n\nAffiliation: Stony Brook University\n\nWe show that for any closed sy
mlectic manifold\, the number of\n1-periodic orbits of any non-degenerate
Hamiltonian is bounded from\nbelow by a version of total Betti number over
Z\, which takes account\nof torsions of all characteristics. The proof re
lies on an abstract\nperturbation scheme (FOP perturbations) which allows
us to produce\nintegral pseudo-cycles from moduli space of J-holomorphic c
urves\, and\na geometric regularization scheme for moduli space of Hamilto
nian\nFloer trajectories generalizing the recent work of\nAbouzaid-McLean-
Smith. I will survey these ideas and indicate\npotential future developmen
ts. This is joint work with Guangbo Xu
DTSTART:20230120T141500Z
DTEND:20230120T154500Z
LAST-MODIFIED:20230120T172458Z
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-106
END:VEVENT
BEGIN:VEVENT
UID:61336664-6365-4061-a663-613031663232
DTSTAMP:20230202T191213Z
CREATED:20221111T202028Z
DESCRIPTION:Topic: Langevin Dynamics of Yang-Mills in 2D and 3D\n\nSpeakers
: Hao Shen\n\nAffiliation: University of Wisconsin\, Madison\n\nWe will di
scuss stochastic quantization i.e. Langevin dynamic of the\nYang-Mills mod
el on two and three dimensional torus. This is described\nby a Lie algebra
valued stochastic PDE driven by space-time white\nnoise. We construct $(l
ocal)$ solution to this singular SPDE via a\nlimit of smooth regularizatio
ns\; gauge invariance is broken in the\nregularizations but is restored in
the limit. This then defines a\nMarkov process on the space of gauge orbi
ts. We also explain what it\nmeans by an orbit space in this singular sett
ing\, namely we construct\nnew state and orbit spaces on which holonomies
and Wilson loop\nobservables are well-defined. We also compare these const
ructions in\n2D and 3D. These are based on joint work with Ajay Chandra\,
Ilya\nChevyrev\, and Martin Hairer. Time permitting\, we will also briefly
\ndiscuss some progress on Langevin dynamic of lattice Yang-Mills\, based
\non joint work with Ilya Chevyrev\, Scott Smith\, Rongchan Zhu and\nXiang
chan Zhu.
DTSTART:20230120T161500Z
DTEND:20230120T171500Z
LAST-MODIFIED:20230120T180826Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Probability Seminar
URL:https://www.ias.edu/math/events/probability-seminar-13
END:VEVENT
BEGIN:VEVENT
UID:36333366-6362-4236-b937-383834376137
DTSTAMP:20230202T191213Z
CREATED:20221014T132534Z
DESCRIPTION:
DTSTART:20230120T180000Z
DTEND:20230120T200000Z
LAST-MODIFIED:20230113T142807Z
LOCATION:Rubenstein Commons | Meeting Room 5
SUMMARY:Milnor Conjecture Learning Seminar
URL:https://www.ias.edu/math/events/milnor-conjecture-learning-seminar-0
END:VEVENT
BEGIN:VEVENT
UID:64373534-3063-4635-b034-646365653435
DTSTAMP:20230202T191213Z
CREATED:20221214T183353Z
DESCRIPTION:Topic: Dynamical Degrees of Endomorphisms of Affine Surfaces\n
\nSpeakers: Marc Abboud\n\nAffiliation: University of Rennes\n\nLet $f: \m
athbf C^2 \rightarrow \mathbf \C^2$ be a polynomial\ntransformation. The d
ynamical degree of $f$ is defined as $\lim_n\n(\text{deg} f^n)^{1/n}$\, wh
ere $\text{deg} f^n$ is the degree of the\n$n$-th iterate of $f$. In 2007\
, Favre and Jonsson showed that the\ndynamical degree of any polynomial en
domorphism of $\mathbf C^2$ is a\nquadratic integer. For any affine surfac
e\, there is a definition of\nthe dynamical degree that generalizes the on
e on the affine plane. We\nshow that the result still holds in this case:
the dynamical degree of\nan endomorphism of any complex affine surface is
a quadratic integer.\nIn this talk\, I will give an overview of the recent
results obtained\non dynamical degrees on algebraic varieties and explain
the key tools\nof the proof.
DTSTART:20230120T183000Z
DTEND:20230120T193000Z
LAST-MODIFIED:20230131T142338Z
LOCATION:Simonyi 101
SUMMARY:Special Year Informal Seminar
URL:https://www.ias.edu/math/events/special-year-informal-seminar-1
END:VEVENT
BEGIN:VEVENT
UID:62666135-3261-4863-b434-643861396235
DTSTAMP:20230202T191213Z
CREATED:20230119T162428Z
DESCRIPTION:
DTSTART:20230123T160000Z
DTEND:20230123T170000Z
LAST-MODIFIED:20230119T162802Z
LOCATION:Rubenstein Commons | Meeting Room 1
SUMMARY:Reading Seminar on Symplectic Topics
URL:https://www.ias.edu/math/events/reading-seminar-symplectic-topics
END:VEVENT
BEGIN:VEVENT
UID:35383863-3564-4061-a237-636331616534
DTSTAMP:20230202T191213Z
CREATED:20221209T181240Z
DESCRIPTION:Topic: Non-measurability of the inverse theorem for the Gowers
norms\n\nSpeakers: Terence Tao\n\nAffiliation: Member\, School of Mathemat
ics\n\nOver a high-dimensional vector space $F_p^n $over a fixed finite fi
eld\n$F_p$\, the inverse theorem for the Gowers norm asserts that a bounde
d\nfunction f on this space that has a large Gowers $U^{k+1}$ norm\, must
\nnecessarily correlate with a phase polynomial e(P) of degree $k$ this\nr
esult has a number of applications in additive combinatorics and\nproperty
testing. In the high-characteristic case $p >= k-1$ it is\nknown that th
is phase polynomial e(P) is 'measurable' in the sense\nthat it can be appr
oximated to high accuracy by a function of a\nbounded number of random shi
fts of $f$. In joint work with Asgar\nJamneshan and Or Shalom\, we show t
hat this measurability fails when\np=2 and k=5\, thus functions of large $
U^6(F_2^n)$ norm correlate with\nquintic phases\, but such phases can be n
ecessarily non-measurable.\n\n
DTSTART:20230123T161500Z
DTEND:20230123T171500Z
LAST-MODIFIED:20230201T204457Z
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-529
END:VEVENT
BEGIN:VEVENT
UID:33356331-3234-4239-b863-396538303764
DTSTAMP:20230202T191213Z
CREATED:20221205T152045Z
DESCRIPTION:Topic: Dual Abelian Varieties Over a Local Field Have Equal Vol
umes\n\nSpeakers: Vadim Vologodsky\n\nAffiliation: HSE University\; School
of Mathematics\n\nA top degree differential form \omega on a smooth algeb
raic variety X\nover a local field K gives rise to a (real valued) measure
on X(K).\nThe Serre duality yields a natural isomorphism between 1-dimens
ional\nspaces of global top degree forms on an abelian variety and the dua
l\nabelian variety. I will prove that the corresponding volumes are\nequal
.
DTSTART:20230123T213000Z
DTEND:20230123T223000Z
LAST-MODIFIED:20230119T194710Z
LOCATION:Princeton University\, Fine Hall 314
SUMMARY:Joint IAS/PU Arithmetic Geometry Seminar
URL:https://www.ias.edu/math/events/joint-iaspu-arithmetic-geometry-seminar
END:VEVENT
BEGIN:VEVENT
UID:34633635-6566-4662-b261-653961613663
DTSTAMP:20230202T191213Z
CREATED:20221209T182451Z
DESCRIPTION:Topic: Locally Decodable Codes\n\nSpeakers: Zeev Dvir\n\nAffili
ation: Princeton University\n\nA Locally Decodable Codes (LDC) is an error
correcting code which\nallows the decoding of a single message symbol fro
m a few queries to a\npossibly corrupted encoding. LDCs can be constructe
d\, for example\,\nfrom low degree polynomials over a finite field (with l
ocal decoding\nalong a random line) and also using set systems with restr
icted\nmodular intersections (Matching-Vector codes). Despite the wide\nr
ange of applications in mathematics and theoretical computer science\,\nth
ere are still big gaps in our understanding of LDCs. In particular\,\nwe s
till don't know if there exist LDCs with polynomial encoding\nlength and
constant locallity (even non-explicitly). In this talk I\nwill survey the
known lower and upper bounds on LDCs and outline the\nmain open problems.
We will focus on the linear algebraic (as opposed\nto information theoret
ic) view of LDCs\, allowing for an arbitrary\nunderlying field. This view
leads to problem statements which are\nreminiscent of more traditional li
ne/point incidence problems.
DTSTART:20230124T153000Z
DTEND:20230124T173000Z
LAST-MODIFIED:20230201T204537Z
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-524
END:VEVENT
BEGIN:VEVENT
UID:61363665-3963-4038-b637-666330313434
DTSTAMP:20230202T191213Z
CREATED:20221221T190044Z
DESCRIPTION:Topic: The Erdős-Szekeres Problem in Three (and Higher) Dimensi
ons\n\nSpeakers: Cosmin Pohoata\n\nAffiliation: Member\, School of Mathema
tics\n\nFinding the smallest integer N=ES_d(n) such that in every\nconfigu
ration of N points in R^d in general position there exist n\npoints in con
vex position is one of the most classical problems in\nextremal combinator
ics\, known as the Erdős-Szekeres problem. In 1935\,\nErdős and Szekeres f
amously conjectured that ES_2(n)=2^{n−2}+1\nholds\, statement which was ne
arly confirmed in 2016 by Suk\, who showed\nthat ES_2(n)=2^{n+o(n)}. In hi
gher dimensions\, on the other hand\, it\nhas been unclear even what kind
of asymptotic behavior to expect from\nES_d(n)\, with conflicting predicti
ons arising over the years. In this\ntalk\, we will discuss a recent proof
that ES_d(n)=2^{o(n)} holds for\nall d≥3. Joint work with Dmitrii Zakharo
v.
DTSTART:20230124T190000Z
DTEND:20230124T200000Z
LAST-MODIFIED:20230131T142515Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Special Year Research Seminar
URL:https://www.ias.edu/math/events/special-year-research-seminar-12
END:VEVENT
BEGIN:VEVENT
UID:35333561-3834-4435-b638-386439643565
DTSTAMP:20230202T191213Z
CREATED:20230103T155547Z
DESCRIPTION:Topic: Bounds in the Inverse Theorem for the Gowers Norms (for
Certain Groups)\n\nSpeakers: Frederick Manners\n\nAffiliation: University
of California\, San Diego\; von Neumann Fellow\, School of Mathematics\n\n
The inverse theorem for the Gowers U^{s+1}-norms has a central place\nin m
odern additive combinatorics\, but all known proofs of it are\ndifficult a
nd most do not give effective bounds.\n\nOver this seminar and the next\,
I will give an outline of a proof\ngiving plausible bounds\, in the case o
f groups Z/NZ where N is a\nlarge prime. Many of the key ideas are presen
t in the cases s=2 and\ns=3\, so I will focus on these for simplicity. Th
e argument splits\ninto an 'algebraic part' which comprises a structure th
eorem for\n'local polynomials'\, and an 'analytic part' which uses this to
deduce\nthe inverse theorem\; the two may be taken somewhat separately.\n
\nI will assume some basic familiarity with the definition of the Gowers\n
norms\, and maybe some basic statements related to the inverse theorem\,\n
but not much else.
DTSTART:20230125T153000Z
DTEND:20230125T170000Z
LAST-MODIFIED:20230131T142637Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Special Year Learning Seminar
URL:https://www.ias.edu/math/events/special-year-learning-seminar-9
END:VEVENT
BEGIN:VEVENT
UID:39386465-3737-4362-b135-613466666337
DTSTAMP:20230202T191213Z
CREATED:20220927T193948Z
DESCRIPTION:Topic: The Study of Wave Interactions: Where Beautiful Mathemat
ical Ideas Come Together\n\nSpeakers: Gigliola Staffilani\n\nAffiliation:
Massachusetts Institute of Technology\n\n_ABSTRACT: _Phenomena involving
interactions of waves happen at\ndifferent scales and in different media:
from gravitational waves to\nthe waves on the surface of the ocean\, from
our milk and coffee in the\nmorning to infinitesimal particles that behave
like wave packets in\nquantum physics. These phenomena are difficult to s
tudy in a rigorous\nmathematical manner\, but maybe because of this challe
nge\nmathematicians have developed interdisciplinary approaches that are\n
powerful and beautiful. In the first lecture\, which will be colloquium\ns
tyle\, I will describe some of these approaches and show for example\nhow
the need to understand certain multilinear and periodic wave\ninteractions
provided also the tools to prove a famous conjecture in\nnumber theory\,
or how classical tools in probability gave the right\nframework to still h
ave viable theories behind certain deterministic\ncounterexamples. In the
second and third lecture I will open a small\nwindow into the concept of _
weak wave turbulence_. I will start with\nthe deterministic approach of Bo
urgain\, involving the study of long\ntime asymptotic of higher Sobolev no
rms of solutions of dispersive\nequations\, and I will end with the rigoro
us derivation of a 3-wave\nkinetic equation.
DTSTART:20230125T190000Z
DTEND:20230125T200000Z
LAST-MODIFIED:20230201T140130Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Emmy Noether Lectures
URL:https://www.ias.edu/math/events/emmy-noether-lectures
END:VEVENT
BEGIN:VEVENT
UID:65323839-3139-4865-b361-633362626139
DTSTAMP:20230202T191213Z
CREATED:20220927T194247Z
DESCRIPTION:Topic: The Study of Wave Interactions: Where Beautiful Mathemat
ical Ideas Come Together\n\nSpeakers: Gigliola Staffilani\n\nAffiliation:
Massachusetts Institute of Technology\n\n_ABSTRACT: _Phenomena involving
interactions of waves happen at\ndifferent scales and in different media:
from gravitational waves to\nthe waves on the surface of the ocean\, from
our milk and coffee in the\nmorning to infinitesimal particles that behave
like wave packets in\nquantum physics. These phenomena are difficult to s
tudy in a rigorous\nmathematical manner\, but maybe because of this challe
nge\nmathematicians have developed interdisciplinary approaches that are\n
powerful and beautiful. In the first lecture\, which will be colloquium\ns
tyle\, I will describe some of these approaches and show for example\nhow
the need to understand certain multilinear and periodic wave\ninteractions
provided also the tools to prove a famous conjecture in\nnumber theory\,
or how classical tools in probability gave the right\nframework to still h
ave viable theories behind certain deterministic\ncounterexamples. In the
second and third lecture I will open a small\nwindow into the concept of _
weak wave turbulence_. I will start with\nthe deterministic approach of Bo
urgain\, involving the study of long\ntime asymptotic of higher Sobolev no
rms of solutions of dispersive\nequations\, and I will end with the rigoro
us derivation of a 3-wave\nkinetic equation.
DTSTART:20230126T190000Z
DTEND:20230126T200000Z
LAST-MODIFIED:20230201T140204Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Emmy Noether Lectures
URL:https://www.ias.edu/math/events/emmy-noether-lectures-0
END:VEVENT
BEGIN:VEVENT
UID:30323764-3362-4630-a632-393437373961
DTSTAMP:20230202T191213Z
CREATED:20221114T202505Z
DESCRIPTION:Topic: Counting Low Degree Number Fields with Almost Prescribed
Successive Minima\n\nSpeakers: Sameera Vemulapalli\n\nAffiliation: Prince
ton University\n\nThe successive minima of an order in a degree n number f
ield are n\nreal numbers encoding information about the Euclidean structur
e of the\norder. How many orders in degree n number fields are there with
almost\nprescribed successive minima\, fixed Galois group\, and bounded\nd
iscriminant? In this talk\, I will address this question for n =\n3\,4\,5.
The answers\, appropriately interpreted\, turn out to be\npiecewise linea
r functions on certain convex bodies. If time permits\,\nI will also discu
ss function field analogues of this problem.
DTSTART:20230126T213000Z
DTEND:20230126T223000Z
LAST-MODIFIED:20230127T161327Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Joint IAS/PU Number Theory Seminar
URL:https://www.ias.edu/math/events/joint-iaspu-number-theory-seminar-11
END:VEVENT
BEGIN:VEVENT
UID:30646265-6232-4264-a233-386661353339
DTSTAMP:20230202T191213Z
CREATED:20221205T203812Z
DESCRIPTION:Topic: Hyperbolicity of Periodic Points of Hamiltonian Maps\n\n
Speakers: Semon Kirillovich Rezchikov\n\nAffiliation: Veblen Research Inst
ructor\, School of Mathematics \n\nThe basic invariant of a fixed point of
a Hamiltonian diffeomorphism\,\nbesides its existence (which is implied b
y the proven Arnol'd\nConjecture)\, is the number of eigenvalues of unit n
orm of the\nlinearization of the map at the fixed point. When there are no
such\neigenvalues\, the fixed point is said to be purely hyperbolic\, and
has\ncharacteristically different local dynamics from the contrasting\npa
rtially elliptic case. In this talk\, I will discuss how period\ndoubling
bifurcations can be used to make periodic points purely\nhyperbolic withou
t appreciably changing Floer-theoretic invariants.\nVia a limiting process
one can approximate Hamiltonian diffeomorphisms\nby hameomorphisms which
behave as if they have only hyperbolic\nperiodic points. We will review th
e dynamical background for such\nconstructions\, and if time permits\, dis
cuss upper and lower bounds on\nthe growth rate of periodic points of thes
e hameomorphisms.
DTSTART:20230127T141500Z
DTEND:20230127T154500Z
LAST-MODIFIED:20230123T184155Z
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-107
END:VEVENT
BEGIN:VEVENT
UID:33663266-3230-4534-b434-353031323835
DTSTAMP:20230202T191213Z
CREATED:20221114T195013Z
DESCRIPTION:Topic: Surface Law and Charge Rigidity for the Coulomb Gas on $
Z^d$\n\nSpeakers: Christophe Garban\n\nAffiliation: University of Lyon\n\n
I will start by introducing and motivating the (two-component) Coulomb\nga
s on the d-dimensional lattice $Z^d$. I will then present some\npuzzling p
roperties of the fluctuations of this Coulomb gas. The\nconnection of this
model with integer-valued fields and compact-valued\nspin systems will be
emphasised through the talk. This is based on\njoint works with Avelio Se
púlveda and David Dereudre
DTSTART:20230127T161500Z
DTEND:20230127T171500Z
LAST-MODIFIED:20230127T183342Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Probability Seminar
URL:https://www.ias.edu/math/events/probability-seminar-15
END:VEVENT
BEGIN:VEVENT
UID:64323662-3461-4362-b035-633638663161
DTSTAMP:20230202T191213Z
CREATED:20220927T194320Z
DESCRIPTION:Topic: The Study of Wave Interactions: Where Beautiful Mathemat
ical Ideas Come Together\n\nSpeakers: Gigliola Staffilani\n\nAffiliation:
Massachusetts Institute of Technology\n\n_ABSTRACT: _Phenomena involving
interactions of waves happen at\ndifferent scales and in different media:
from gravitational waves to\nthe waves on the surface of the ocean\, from
our milk and coffee in the\nmorning to infinitesimal particles that behave
like wave packets in\nquantum physics. These phenomena are difficult to s
tudy in a rigorous\nmathematical manner\, but maybe because of this challe
nge\nmathematicians have developed interdisciplinary approaches that are\n
powerful and beautiful. In the first lecture\, which will be colloquium\ns
tyle\, I will describe some of these approaches and show for example\nhow
the need to understand certain multilinear and periodic wave\ninteractions
provided also the tools to prove a famous conjecture in\nnumber theory\,
or how classical tools in probability gave the right\nframework to still h
ave viable theories behind certain deterministic\ncounterexamples. In the
second and third lecture I will open a small\nwindow into the concept of _
weak wave turbulence_. I will start with\nthe deterministic approach of Bo
urgain\, involving the study of long\ntime asymptotic of higher Sobolev no
rms of solutions of dispersive\nequations\, and I will end with the rigoro
us derivation of a 3-wave\nkinetic equation.
DTSTART:20230127T190000Z
DTEND:20230127T200000Z
LAST-MODIFIED:20230201T140234Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Emmy Noether Lectures
URL:https://www.ias.edu/math/events/emmy-noether-lectures-1
END:VEVENT
BEGIN:VEVENT
UID:61333363-6137-4365-b139-346134386464
DTSTAMP:20230202T191213Z
CREATED:20221209T181412Z
DESCRIPTION:Topic: On Matrix Multiplication and Polynomial Identity Testing
\n\nSpeakers: Robert Andrews\n\nAffiliation: University of Illinois Urbana
-Champaign\n\nDetermining the complexity of matrix multiplication is a fun
damental\nproblem of theoretical computer science. It is popularly conject
ured\nthat matrices can be multiplied in nearly-linear time. If true\, thi
s\nconjecture would yield similarly-fast algorithms for a wide array of\np
roblems in linear algebra and beyond. However\, if such near-linear\ntime
algorithms for matrix multiplication do not exist\, is it possible\nto lev
erage the hardness of multiplying matrices to design algorithms\nfor other
problems? In this talk\, I will describe how lower bounds on\nthe complex
ity of matrix multiplication can be used to design a faster\ndeterministic
algorithm to test if two polynomials\, encoded as\nalgebraic circuits\, a
re equal.
DTSTART:20230130T161500Z
DTEND:20230130T171500Z
LAST-MODIFIED:20230201T204722Z
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-530
END:VEVENT
BEGIN:VEVENT
UID:33626265-6665-4133-a136-396538326664
DTSTAMP:20230202T191213Z
CREATED:20221114T153237Z
DESCRIPTION:Topic: Closing Lemmas in Contact Dynamics and Holomorphic Curve
s\n\nSpeakers: Shira Tanny\n\nAffiliation: Member\, School of Mathematics
\n\nGiven a flow on a manifold\, how to perturb it in order to create a\np
eriodic orbit passing through a given region? While the first results\nin
this direction were obtained in the 1960-ies\, various facets of\nthis que
stion remain largely open. I will review recent advances on\nthis problem
in the context of contact flows\, which are closely\nrelated to Hamiltonia
n flows from classical mechanics. In particular\,\nI'll discuss a proof of
a conjecture of Irie stating that rotations of\nodd-dimensional ellipsoid
s admit a surprisingly large class of\nperturbations creating periodic orb
its. The proof involves methods of\nmodern symplectic topology including p
seudo-holomorphic curves and\ncontact homology. The talk is based on a joi
nt work with Julian\nChaidez\, Ipsita Datta and Rohil Prasad.
DTSTART:20230130T190000Z
DTEND:20230130T200000Z
LAST-MODIFIED:20230130T181533Z
LOCATION:Simonyi Hall 101 and Remote Access - see Zoom link below
SUMMARY:Members' Colloquium
URL:https://www.ias.edu/math/events/members-colloquium-42
END:VEVENT
BEGIN:VEVENT
UID:38636330-6435-4438-b538-653936383061
DTSTAMP:20230202T191213Z
CREATED:20221207T155721Z
DESCRIPTION:Topic: Convex Bodies with all Planar Characteristics\n\nSpeaker
s: Anastasiia Sharipova\n\nAffiliation: Pennsylvania State University\n\nI
will show that in symplectic space smooth strongly convex bodies\nwith al
l characteristics planar or all outer billiard trajectories\nplanar are af
fine symplectic images of a ball.
DTSTART:20230130T210000Z
DTEND:20230130T223000Z
LAST-MODIFIED:20230124T141236Z
LOCATION:Fine 314 and Remote Access
SUMMARY:Joint IAS/Princeton University Symplectic Geometry Seminar
URL:https://www.ias.edu/math/events/joint-iasprinceton-university-symplecti
c-geometry-seminar-202
END:VEVENT
BEGIN:VEVENT
UID:61636133-3661-4436-b364-306563383235
DTSTAMP:20230202T191213Z
CREATED:20221116T181755Z
DESCRIPTION:Topic: Stable Homotopy without Homotopy\n\nSpeakers: Toni Mikae
l Annala\n\nAffiliation: Member\, School of Mathematics \n\nMany cohomolog
y theories in algebraic geometry\, such as crystalline\nand syntomic cohom
ology\, are not homotopy invariant. This is a shame\,\nbecause it means th
at the stable motivic homotopy theory of\nMorel--Voevodsky cannot be emplo
yed in studying the deeper aspects of\nsuch theories\, such as cohomology
operations that act on the\ncohomology groups. In this talk\, I will discu
ss ongoing efforts\, joint\nwith Ryomei Iwasa and Marc Hoyois\, to set up
a workable theory of\nnon-homotopy invariant stable motivic homotopy theor
y\, with the goal\nof providing effective tools of studying cohomology the
ories in\nalgebraic geometry by geometric means.
DTSTART:20230130T213000Z
DTEND:20230130T223000Z
LAST-MODIFIED:20230131T131134Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:IAS/Princeton Arithmetic Geometry Seminar
URL:https://www.ias.edu/math/events/iasprinceton-arithmetic-geometry-semina
r
END:VEVENT
BEGIN:VEVENT
UID:31393730-3366-4536-b161-653166616162
DTSTAMP:20230202T191213Z
CREATED:20221209T183050Z
DESCRIPTION:Topic: A Subpolynomial Approximation Algorithm for Graph Crossi
ng Number in Low-Degree Graphs\n\nSpeakers: Zihan Tan\n\nAffiliation: Rutg
ers University\n\nGraph Crossing Number is a fundamental and extensively s
tudied problem\nwith wide ranging applications. In this problem\, the goal
is to draw\nan input graph $G$ in the plane so as to minimize the number
of\ncrossings between the images of its edges. The problem is notoriously
\ndifficult\, and despite extensive work\, non-trivial approximation\nalgo
rithms are only known for bounded-degree graphs. Even for this\nspecial ca
se\, the best current algorithm achieves a $\tilde\nO(\sqrt{n})$-approxima
tion\, while the best current negative results do\nnot rule out constant-f
actor approximation. All current approximation\nalgorithms for the problem
build on the same paradigm\, which is also\nused in practice: compute a s
et $E'$ of edges (called a planarizing\nset) such that $G\setminus E'$ is
planar\; compute a planar drawing of\n$G\setminus E'$\; then add the drawi
ngs of the edges of E to the\nresulting drawing. Unfortunately\, there are
examples of graphs $G$\, in\nwhich any implementation of this method must
incur $\Omega(OPT^2)$\ncrossings\, where OPT is the value of the optimal
solution. This\nbarrier seems to doom the only currently known approach to
designing\napproximation algorithms for the problem\, and to prevent it f
rom\nyielding a better than $\tilde O(\sqrt{n})$-approximation.\n\nWe prop
ose a new paradigm that allows us to overcome this barrier.\nUsing the new
paradigm\, we reduce the Crossing Number problem to\nCrossing Number with
Rotation System – a variant of the Crossing\nNumber problem\, in which th
e ordering of the edges incident to every\nvertex is fixed as part of inpu
t. We then show a randomized algorithm\nfor this new problem\, that allows
us to obtain a subpolynomial\napproximation for Graph Crossing Number on
low-degree graphs.\n\nThis talk is based on joint work with Julia Chuzhoy
and Sepideh\nMahabadi.
DTSTART:20230131T153000Z
DTEND:20230131T173000Z
LAST-MODIFIED:20230201T204752Z
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-525
END:VEVENT
BEGIN:VEVENT
UID:61363536-6438-4133-b963-393862373131
DTSTAMP:20230202T191213Z
CREATED:20230105T134727Z
DESCRIPTION:Topic: Non-Rigidity of Horocycle Orbit Closures in Geometricall
y Infinite Surfaces\n\nSpeakers: Or Landesberg\n\nAffiliation: Yale Univer
sity\n\nHorospherical group actions on homogeneous spaces are famously kno
wn\nto be extremely rigid. In finite volume homogeneous spaces\, it is a\n
special case of Ratner’s theorems that all horospherical orbit\nclosures a
re homogeneous. Rigidity further extends in rank-one to\ninfinite volume b
ut geometrically finite spaces. The geometrically\ninfinite setting is far
less understood. We consider\n$\mathbb{Z}$-covers of compact hyperbolic s
urfaces and show that they\nsupport quite exotic horocycle orbit closures.
Surprisingly\, the\ntopology of such orbit closures delicately depends on
the choice of a\nhyperbolic metric on the covered compact surface. In par
ticular\, our\nconstructions provide the first examples of geometrically i
nfinite\nspaces where a complete description of non-trivial horocycle orbi
t\nclosures is known. Based on joint work with James Farre and Yair\nMinsk
y.
DTSTART:20230131T190000Z
DTEND:20230131T200000Z
LAST-MODIFIED:20230123T161114Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Special Year Research Seminar
URL:https://www.ias.edu/math/events/special-year-research-seminar-16
END:VEVENT
BEGIN:VEVENT
UID:62386265-6565-4066-a361-646563653266
DTSTAMP:20230202T191213Z
CREATED:20230119T215252Z
DESCRIPTION:Topic: One Curvy Metaphor in Systolic Geometry\n\nSpeakers: Ale
xey Balitskiy\n\nAffiliation: Member\, School of Mathematics \n\nAbstract:
In 2010\, Larry Guth wrote a beautiful essay 'Metaphors in\nsystolic geom
etry'\, where he poetically described several approaches\nto Gromov's cele
brated systolic inequality. A nontrivial special case\nof this inequality
claims that a riemannian n-torus always has a\nnon-contractible loop of le
ngth at most the n-th root of the volume.\nOne of the metaphors draws the
intuition from geometry of scalar\ncurvature\, namely\, the Schoen--Yau me
thod of proving that the n-torus\ndoes not admit a metric of positive scal
ar curvature. I will describe\nthe metaphor and survey some of its recent
applications.
DTSTART:20230201T230000Z
DTEND:20230202T010000Z
LAST-MODIFIED:20230126T163634Z
LOCATION:Birch Garden\, Simons Hall
SUMMARY:Mathematical Conversations
URL:https://www.ias.edu/math/events/mathematical-conversations-249
END:VEVENT
BEGIN:VEVENT
UID:31303031-3762-4337-a465-333034653630
DTSTAMP:20230202T191213Z
CREATED:20230126T155532Z
DESCRIPTION:Topic: Selmer Averages in Families of Elliptic Curves with Mark
ed Points and Applications\n\nSpeakers: Wei Ho\n\nAffiliation: University
of Michigan\; Visiting Professor\, School of Mathematics\n\nOrbits of many
coregular representations of algebraic groups are\nclosely linked to modu
li spaces of genus one curves with extra data.\nWe may use these orbit par
ametrizations to compute the average size of\nSelmer groups of elliptic cu
rves in certain families\, e.g.\, with\nmarked points\, thus obtaining upp
er bounds for the average ranks of\nthe elliptic curves in these families.
We will also describe some\nother applications. This is joint work with M
anjul Bhargava. This\nfirst talk of the double header will describe one or
bit\nparametrization that will appear in the second talk by Ari Shnidman\,
\nbut the two talks may be understood individually.
DTSTART:20230202T200000Z
DTEND:20230202T210000Z
LAST-MODIFIED:20230127T181005Z
LOCATION:Princeton University\, Fine Hall 214
SUMMARY:Joint IAS/PU Number Theory Seminar
URL:https://www.ias.edu/math/events/joint-iaspu-number-theory-seminar-28
END:VEVENT
BEGIN:VEVENT
UID:35663231-3766-4938-b531-333663303634
DTSTAMP:20230202T191213Z
CREATED:20221116T194019Z
DESCRIPTION:Speakers: Nathanaël Berestycki\n\nAffiliation: University of Vi
enna\n\nLecture 1: 10:15-11:15\n\nON THE COVER TIME OF RANDOM WALKS ON GRA
PHS\n\nHow long does it take for a random walk to cover all the vertices o
f a\ngraph? \n\nAnd what is the structure of the uncovered set (the set of
points not\nyet visited by the walk) close to the cover time? \n\nWe comp
letely characterize the vertex-transitive graphs of bounded\ndegree for wh
ich the cover time is in the Gumbel universality class.\nSurprisingly our
characterization is in terms of a simple global\ngeometric condition\; thi
s is furthermore equivalent to the\ndecorrelation of the uncovered set at
a time (in the sense that it is\nclose to a product measure). \n\nTo prove
this result we rely on recent breakthroughs in geometric\ngroup theory wh
ich give a quantitative form of Gromov's theorem on\ngroups of polynomial
growth. We also prove along the way optimal\nquantitative estimates giving
an exponential approximation for hitting\ntime of sets of vertices (irres
pective of their geometry).\n\nJoint work with Jonathan Hermon (UBC) and L
ucas Teyssier (Vienna).\n\nLecture 2: 11:15-12:15\n\nWEYL LAW IN LIOUVILL
E QUANTUM GRAVITY\n\nCan you hear the shape of LQG? We obtain a Weyl law f
or the\neigenvalues of Liouville Brownian motion: the n-th eigenvalue grow
s\nlinearly with n\, with the proportionality constant given by the\nLiouv
ille area of the domain (times a certain deterministic constant\ndepending
on $\gamma \in$ (0\, 2). At the heart of the proof we obtain\nestimates o
f independent interest on the small-time behaviour of the\non-diagonal hea
t kernel. Interestingly\, we show that the scaled heat\nkernel displays no
ntrivial pointwise fluctuations\, which however\nvanish when integrating o
ver a domain.\n\nThis is joint work in preparation with Mo-Dick Wong (Durh
am).
DTSTART:20230203T151500Z
DTEND:20230203T171500Z
LAST-MODIFIED:20230127T142523Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Probability Seminar
URL:https://www.ias.edu/math/events/probability-seminar-16
END:VEVENT
BEGIN:VEVENT
UID:33663061-3162-4837-b637-666235656434
DTSTAMP:20230202T191213Z
CREATED:20230127T133718Z
DESCRIPTION:Topic: Overview\n\nSpeakers: Jacob Lurie\n\nAffiliation: Facult
y\, Frank C. and Florence S. Ogg Professor\, School of Mathematics
DTSTART:20230203T180000Z
DTEND:20230203T203000Z
LAST-MODIFIED:20230127T143209Z
LOCATION:Rubenstein Commons | Meeting Room 5
SUMMARY:Milnor Conjecture Learning Seminar
URL:https://www.ias.edu/math/events/milnor-conjecture-learning-seminar-5
END:VEVENT
BEGIN:VEVENT
UID:37393762-3039-4633-b635-373935613261
DTSTAMP:20230202T191213Z
CREATED:20221214T184521Z
DESCRIPTION:Topic: Convergence of Ergodic Averages Along the Sequence $\Ome
ga(n)$\n\nSpeakers: Kaitlyn Loyd \n\nAffiliation: Northwestern University
\n\nFollowing Birkhoff's proof of the Pointwise Ergodic Theorem\, it has\n
been studied whether convergence still holds along various\nsubsequences.
In 2020\, Bergelson and Richter showed that under the\nadditional assumpti
on of unique ergodicity\, pointwise convergence\nholds along the number th
eoretic sequence $\Omega(n)$\, where\n$\Omega(n)$ denotes the number of pr
ime factors on $n$ counted with\nmultiplicity. In this talk\, we will see
that removing this assumption\,\na pointwise ergodic theorem does not hold
along $\Omega(n)$. Time\npermitting\, we will then study the interplay of
the dynamics with\ncertain number theoretic properties of $\Omega(n)$ to
obtain further\ninformation on the asymptotic behavior of this sequence.
DTSTART:20230203T183000Z
DTEND:20230203T193000Z
LAST-MODIFIED:20230131T131145Z
LOCATION:Simonyi 101
SUMMARY:Special Year Informal Seminar
URL:https://www.ias.edu/math/events/special-year-informal-seminar-2
END:VEVENT
BEGIN:VEVENT
UID:33363964-3662-4132-b739-346338616537
DTSTAMP:20230202T191213Z
CREATED:20221114T202953Z
DESCRIPTION:Topic: Sums of Two Cubes \n\nSpeakers: Ari Shnidman\n\nAffiliat
ion: Hebrew University of Jerusalem\n\nWe prove that at least 2/21 of all
integers can be written as a sum of\ntwo rational cubes\, and at least 1/6
of all integers cannot. More\ngenerally\, in any cubic twist family of el
liptic curves\, at least one\n1/6 of curves have rank 0 and at least 1/6 o
f curves with good\nreduction at 2 have rank 1. I'll give an overview of t
he proof\, which\ncombines various methods (orbit-parameterizations over t
he integers\,\ngeometry-of-numbers\, circle method\, Iwasawa theory\, etc)
\, and I'll\nexplain how the technique generalizes to certain families of
higher\ngenus curves/higher dimensional abelian varieties. This is joint
\nwork with Alpöge and Bhargava.
DTSTART:20230203T193000Z
DTEND:20230203T203000Z
LAST-MODIFIED:20230201T200252Z
LOCATION:Princeton University\, Fine Hall 214
SUMMARY:Joint IAS/PU Number Theory Seminar
URL:https://www.ias.edu/math/events/joint-iaspu-number-theory-seminar-12
END:VEVENT
BEGIN:VEVENT
UID:64666639-6238-4335-b164-613131333736
DTSTAMP:20230202T191213Z
CREATED:20221209T181441Z
DESCRIPTION:Topic: Smooth Coverings of Space\n\nSpeakers: Oded Regev\n\nAff
iliation: New York University\n\nLet K be a convex body in $R^n$. In some
cases (say when K is a cube)\,\nwe can tile $R^n$ using translates of K. H
owever\, in general (say when\nK is a ball) this is impossible. Neverthele
ss\, we show that one can\nalways cover space 'smoothly' using translates
of K\, in the sense\nthat *each* point in $R^n$ is covered by almost the s
ame small number\nof translates of K (specifically\, (1+-eps)poly(n)). Mor
eover\, we show\nthat this can be achieved by taking the translates to be
the set of\npoints in a random lattice. These results represent substantia
l\nimprovements to bounds of Rogers from the 1950s. The key to the proof\n
are recent breakthroughs due to Dvir\, Dhar\, and others regarding the\ndi
screte Kakeya problem. I will present some history\, applications in\nengi
neering and computer science\, and ideas of the proofs. No\nprerequisites
beyond undergraduate material (measures\, volumes\, vector\nspaces over fi
nite fields) will be assumed.\n\nBased on joint work with Or Ordentlich an
d Barak Weiss (one paper\npublished in J. AMS 2022 https://arxiv.org/abs/2
006.00340 and another\nin progress)
DTSTART:20230206T161500Z
DTEND:20230206T171500Z
LAST-MODIFIED:20230119T142223Z
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-531
END:VEVENT
BEGIN:VEVENT
UID:36303536-3664-4133-b565-356365656634
DTSTAMP:20230202T191213Z
CREATED:20221114T153547Z
DESCRIPTION:Topic: Lefschetz Without Positivity: An Overview\n\nSpeakers: K
arim Alexander Adiprasito\n\nAffiliation: Hebrew University of Jerusalem\,
Member\, School of Mathematics\n\nThe Lefschetz property is central in th
e theory of projective\nvarieties\, detailing a fundamental property of th
eir Chow rings\,\nessentially saying that the multiplication with a geomet
rically\nmotivated class is of full rank.\n\nWe drop the keyword projectiv
e\, and replace it with the word\n'generic'. I will describe how\, for ins
tance\, a complete\, quasismooth\ntoric and NON-projective variety still s
atisfies the Lefschetz\nproperty\, provided the torus action is sufficient
ly generic. I will\nsurvey the theory and the techniques (including an int
riguing relation\nto Parseval-Rayleigh identities in positive characterist
ic)\, as well\nas some of the motivations and applications to quantitative
topology\,\ncombinatorics\, discrete geometry and more. I will end with s
ome cool\nconjectures.
DTSTART:20230206T190000Z
DTEND:20230206T200000Z
LAST-MODIFIED:20230126T132646Z
LOCATION:Simonyi Hall 101 and Remote Access - see Zoom link below
SUMMARY:Members' Colloquium
URL:https://www.ias.edu/math/events/members-colloquium-43
END:VEVENT
BEGIN:VEVENT
UID:31643333-3561-4462-a264-346434396531
DTSTAMP:20230202T191213Z
CREATED:20221207T185401Z
DESCRIPTION:Topic: Symplectic Embeddings of Hirzebruch Surfaces\n\nSpeakers
: Nicole Magill\n\nAffiliation: Cornell University\n\nThe four dimensional
ellipsoid embedding function of a toric\nsymplectic manifold M measures w
hen a symplectic ellipsoid embeds into\nM. It generalizes the Gromov width
and ball packing numbers. This\nfunction can have a property called an in
finite staircase\, which\nimplies infinitely many obstructions are relevan
t in determining\nwhether embeddings exist. Based on various work with McD
uff\, Pires\,\nand Weiler\, we will discuss the classification of which Hi
rzebruch\nsurfaces have infinite staircases. The argument relies on a\ncor
respondence between constructing embeddings via almost toric\nfibrations a
nd finding obstructions via exceptional spheres. The talk\nwill focus on e
xplaining this correspondence.
DTSTART:20230206T210000Z
DTEND:20230206T223000Z
LAST-MODIFIED:20230123T213900Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Joint IAS/Princeton University Symplectic Geometry Seminar
URL:https://www.ias.edu/math/events/joint-iasprinceton-university-symplecti
c-geometry-seminar-213
END:VEVENT
BEGIN:VEVENT
UID:64393637-3062-4639-b434-373565633735
DTSTAMP:20230202T191213Z
CREATED:20221205T152538Z
DESCRIPTION:Speakers: Levent Alpöge\n\nAffiliation: Harvard University
DTSTART:20230206T213000Z
DTEND:20230206T223000Z
LAST-MODIFIED:20230125T215103Z
LOCATION:Princeton University\, Fine Hall 314
SUMMARY:Joint IAS/Princeton Arithmetic Geometry Seminar
URL:https://www.ias.edu/math/events/joint-iasprinceton-arithmetic-geometry-
seminar
END:VEVENT
BEGIN:VEVENT
UID:31663065-6334-4363-b937-353162343738
DTSTAMP:20230202T191213Z
CREATED:20221209T183114Z
DESCRIPTION:Topic: Overview and Recent Results in Combinatorial Auctions\n
\nSpeakers: Matt Weinberg\n\nAffiliation: Princeton University\n\nIn this
talk\, I'll first give a broad overview of the history of\ncombinatorial a
uctions within TCS\, and then discuss some recent\nresults.\n\nCombinatori
al auctions center around the following problem: There is a\nset M of m it
ems\, and N of n bidders. Each bidder i has a valuation\nfunction $v_i$ fr
om subsets of M to real numbers. The goal is to\npartition the items into
$S_1\,\ldots$\, $S_n$ maximizing $\sum_i\nv_i(S_i)$.\n\nI'll cover 2x2 var
iants of this problem:\n\n * Computational model (brief overview and state
ments of results): n\nparties each separately hold one of the $v_i$\, and
they must use\npoly(n\,m) runtime/queries/etc. to find as good an approxim
ation as\npossible.\n * vs. Communication model (main focus): n parties ea
ch separately\nhold one of the $v_i$ and they must use poly(n\,m) communic
ation to\nfind as good an approximation as possible.\n * Algorithm Design
version (one main focus): all parties honestly\nparticipate in whatever pr
otocol is proposed.\n * Mechanism Design version (also a main focus): The
designer is\nallowed to charge price $p_i$ to agent i\, if desired. Party
i will\nbehave in whatever way they believe maximizes $v_i(S_i) - p_i$. \n
\nA sample of results I'll aim to discuss (at varying levels of detail):\n
\n * Tight bounds on achievable approximation guarantees for\nalgorithms.
\n * The Vickrey-Clarke-Groves auction: a black-box reduction from\nexact
mechanism design to exact algorithm design.\n * Maximal-in-range auctions:
tight bounds on the approximation\nguarantees achievable by 'VCG-like' id
eas.\n * Separations between approximation guarantees achievable by\nalgor
ithms vs. mechanisms.\n\nNo prior background in game theory or combinatori
al auctions will be\nassumed.
DTSTART:20230207T153000Z
DTEND:20230207T173000Z
LAST-MODIFIED:20230119T203701Z
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-526
END:VEVENT
BEGIN:VEVENT
UID:39306665-6163-4433-b263-633363376638
DTSTAMP:20230202T191213Z
CREATED:20230202T184335Z
DESCRIPTION:Speakers: Terence Tao\n\nAffiliation: University of California\
, Los Angeles\; Member\, School of Mathematics\n\nTo Be Announced
DTSTART:20230207T190000Z
DTEND:20230207T200000Z
LAST-MODIFIED:20230202T184619Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Special Year Research Seminar
URL:https://www.ias.edu/math/events/special-year-research-seminar-20
END:VEVENT
BEGIN:VEVENT
UID:63653334-6637-4831-b436-636431653830
DTSTAMP:20230202T191213Z
CREATED:20221116T190821Z
DESCRIPTION:Topic: On Co-dimension One Stability of the Soliton for the 1D
Focusing Cubic Klein-Gordon Equation\n\nSpeakers: Wilhelm Schlag\n\nAffili
ation: Yale University\n\nSolitons are particle-like solutions to dispersi
ve evolution equations\nwhose shapes persist as time evolves. In some situ
ations\, these\nsolitons appear due to the balance between nonlinear effec
ts and\ndispersion\, in other situations their existence is related to\nto
pological properties of the model. Broadly speaking\, they form the\nbuild
ing blocks for the long-time dynamics of dispersive equations. In\nthis ta
lk I will present forthcoming joint work with J. Luehrmann\n(TAMU) on long
-time decay estimates for perturbations of the soliton\nfor the 1D focusin
g cubic Klein-Gordon equation (up to exponential\ntime scales)\, and I wil
l discuss our previous work on the asymptotic\nstability of the sine-Gordo
n kink under odd perturbations. While these\ntwo problems are quite simila
r at first sight\, we will see that they\ndiffer by a subtle cancellation
property\, which has significant\nconsequences for the long-time dynamics
of the perturbations of the\nrespective solitons.
DTSTART:20230208T200000Z
DTEND:20230208T210000Z
LAST-MODIFIED:20230201T191343Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Analysis and Mathematical Physics
URL:https://www.ias.edu/math/events/analysis-and-mathematical-physics-3
END:VEVENT
BEGIN:VEVENT
UID:34663732-3430-4930-b865-636566383932
DTSTAMP:20230202T191213Z
CREATED:20230119T215514Z
DESCRIPTION:Topic: TBA
DTSTART:20230208T230000Z
DTEND:20230209T010000Z
LAST-MODIFIED:20230119T215553Z
LOCATION:Birch Garden\, Simons Hall
SUMMARY:Mathematical Conversations
URL:https://www.ias.edu/math/events/mathematical-conversations-250
END:VEVENT
BEGIN:VEVENT
UID:33623839-6431-4032-a638-323731653963
DTSTAMP:20230202T191213Z
CREATED:20230130T202723Z
DESCRIPTION:Topic: What is Morse Homology?\n\nSpeakers: Shira Tanny\n\nAffi
liation: Member\, School of Mathematics
DTSTART:20230209T180000Z
DTEND:20230209T190000Z
LAST-MODIFIED:20230130T203112Z
LOCATION:Simonyi Hall
SUMMARY:What Is .... ?
URL:https://www.ias.edu/math/events/what
END:VEVENT
BEGIN:VEVENT
UID:36343561-3062-4763-b036-313361366363
DTSTAMP:20230202T191213Z
CREATED:20221114T203812Z
DESCRIPTION:Topic: Regular de Rham Galois Representations in the Completed
Cohomology of Modular Curves\n\nSpeakers: Lue Pan\n\nAffiliation: Princeto
n University\n\n_Let p be a prime. I want to explain how to use the geomet
ry of\nmodular curves at infinite level and the Hodge–Tate period map to\n
study regular de Rham p-adic Galois representations appearing in the\np-ad
ically completed cohomology of modular curves. We will show that\nthese Ga
lois representations up to twists come from modular forms\,\nwhich was pre
viously known by Emerton by totally different methods.\nOne useful observa
tion is to view modular curves at infinite level as\na 'correspondence' be
tween classical modular curves and the flag\nvariety.Let p be a prime. __I
want to explain how to use the geometry\nof modular curves at infinite le
vel and the Hodge–Tate period map to\nstudy regular de Rham p-adic Galois
representations appearing in the\np-adically completed cohomology of modul
ar curves. We will show that\nthese Galois representations up to twists co
me from modular forms\,\nwhich was previously known by Emerton by totally
different methods.\nOne useful observation is to view modular curves at in
finite level as\na 'correspondence' between classical modular curves and t
he flag\nvariety._
DTSTART:20230209T213000Z
DTEND:20230209T223000Z
LAST-MODIFIED:20230201T203017Z
LOCATION:Princeton University\, Fine 214
SUMMARY:Joint IAS/PU Number Theory Seminar
URL:https://www.ias.edu/math/events/joint-iaspu-number-theory-seminar-18
END:VEVENT
BEGIN:VEVENT
UID:32346233-3638-4731-b762-303637663237
DTSTAMP:20230202T191213Z
CREATED:20221205T203901Z
DESCRIPTION:Topic: Three 20-min Research Talks\n\nSpeakers: David White\, K
ai Hugtenburg\, Patricia Dietzsch\n\nAffiliation: North Carolina State Uni
versity\; University of Edinburgh\; ETH Zürich\n\nDAVID WHITE (North Carol
ina State University): _Symplectic\nInstanton Homology of Knots and Links
in 3-manifolds_\n\nPowerful homology invariants of knots in 3-manifolds h
ave emerged from\nboth the gauge-theoretic and the symplectic kinds of Flo
er theory: on\nthe gauge-theoretic side is the instanton knot homology of
\nKronheimer-Mrowka\, and on the symplectic the (Heegaard) knot Floer\nhom
ology developed independently by Ozsváth-Szabó and by Rasmussen.\nThese th
eories are conjecturally equivalent\, but a precise connection\nbetween th
e gauge-theoretic and symplectic sides here remains to be\nunderstood. We
describe a construction designed to translate singular\ninstanton knot hom
ology more directly into the symplectic domain\, a\nso-called symplectic i
nstanton knot homology: We define a Lagrangian\nFloer homology invariant o
f knots and links which extends a 3-manifold\ninvariant developed by H. Ho
rton. The construction proceeds by using\nspecialized Heegaard diagrams to
parametrize an intersection of\ntraceless $SU(2)$ character varieties. Th
e latter is in fact an\nintersection of Lagrangians in a symplectic manifo
ld\, giving rise to a\nLagrangian Floer homology. We discuss its relation
to singular\ninstanton knot homology\, as well as the formal properties wh
ich this\nsuggests and methods to prove these properties.\n\nKAI HUGTENBUR
G (University of Edinburgh): _Open Gromov-Witten\nInvariants from the Fuka
ya Category_\n\nEnumerative mirror symmetry is a correspondence between cl
osed\nGromov-Witten invariants of a space X\, and period integrals of a\nf
amily Y. One of the predictions of Homological Mirror Symmetry is\nthat th
e closed Gromov-Witten invariants can be obtained from the\nFukaya categor
y. For Calabi-Yau varieties this has been demonstrated\nby Ganatra-Perutz-
Sheridan. Recently\, enumerative mirror symmetry has\nbeen extended\, by i
ncluding open Gromov-Witten invariants and extended\nperiod integrals. It
is natural to expect that open Gromov-Witten\ninvariants can be obtained f
rom the Fukaya category. In this talk I\nwill outline a construction which
will demonstrate this for certain\nopen Gromov-Witten invariants.\n\nPATR
ICIA DIETZSCH (ETH Zürich) : Lagrangian Hofer Metric and\nBarcodes\n\nFilt
ered Lagrangian Floer homology gives rise to a barcode\nassociated to a pa
ir of Lagrangians. It is well-known that the\nlengths of the finite bars
and the spectral distance are lower bounds\nof the Lagrangian Hofer metric
. In this talk we are interested in a\nreverse inequality. I will explain
an upper bound of the Lagrangian\nHofer distance between equators in the
cylinder in terms of\na weighted sum of the lengths of the finite bars and
the spectral\ndistance.
DTSTART:20230210T141500Z
DTEND:20230210T154500Z
LAST-MODIFIED:20230131T154405Z
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-108
END:VEVENT
BEGIN:VEVENT
UID:62663538-6564-4065-b931-373261353139
DTSTAMP:20230202T191213Z
CREATED:20221116T194117Z
DESCRIPTION:Topic: TBD \n\nSpeakers: Dr. Eveliina Peltola\n\nAffiliation: U
niversity of Bonn
DTSTART:20230210T161500Z
DTEND:20230210T171500Z
LAST-MODIFIED:20221209T195918Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Probability Seminar
URL:https://www.ias.edu/math/events/probability-seminar-27
END:VEVENT
BEGIN:VEVENT
UID:37653962-6231-4738-b462-366239636263
DTSTAMP:20230202T191213Z
CREATED:20221014T133211Z
DESCRIPTION:Topic: TBD
DTSTART:20230210T180000Z
DTEND:20230210T203000Z
LAST-MODIFIED:20230127T143310Z
LOCATION:Rubenstein Commons | Meeting Room 5
SUMMARY:Milnor Conjecture Learning Seminar
URL:https://www.ias.edu/math/events/milnor-conjecture-learning-seminar-7
END:VEVENT
BEGIN:VEVENT
UID:61396336-3037-4334-b861-313238653130
DTSTAMP:20230202T191213Z
CREATED:20230120T152910Z
DESCRIPTION:Topic: Non-standard Contact Structures on Spheres and Applicati
ons \n\nSpeakers: Agustin Moreno\n\nAffiliation: Member\, School of Mathem
atics \n\nIn this talk\, I will describe the construction of contact struc
tures\non higher-dimensional spheres with exotic fillability properties.\n
These can then me implemented on more general manifolds via connected\nsum
\, yielding a host of exotic higher-dimensional contact phenomena.\nJoint
work with Jonathan Bowden\, Fabio Gironella and Zhengyi Zhou.
DTSTART:20230213T144500Z
DTEND:20230213T154500Z
LAST-MODIFIED:20230123T215636Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Special Joint IAS/Princeton University Symplectic Geometry Seminar
URL:https://www.ias.edu/math/events/special-joint-iasprinceton-university-s
ymplectic-geometry-seminar
END:VEVENT
BEGIN:VEVENT
UID:64333834-3362-4635-a635-656533616635
DTSTAMP:20230202T191213Z
CREATED:20221209T181515Z
DESCRIPTION:Topic: Efficient Verification of Computation on Untrusted Platf
orms\n\nSpeakers: Yael Kalai\n\nAffiliation: Massachusetts Institute of Te
chnology/Microsoft\n\nEfficient verification of computation is fundamental
to computer\nscience and is at the heart of the P vs. NP question. Recent
ly it\nhas had growing practical significance\, especially with\nthe incre
asing popularity of blockchain technologies and cloud\ncomputing. In this
talk\, I will present schemes for verifying the\ncorrectness of a computat
ion. I will discuss their impact\, both\non cryptography and on theory of
computation at large\, as well as\ntheir impact on practice.
DTSTART:20230213T161500Z
DTEND:20230213T171500Z
LAST-MODIFIED:20230131T182002Z
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-532
END:VEVENT
BEGIN:VEVENT
UID:33343737-3035-4235-b262-393665643765
DTSTAMP:20230202T191213Z
CREATED:20221114T153710Z
DESCRIPTION:Topic: TBD\n\nSpeakers: Jo Nelson\n\nAffiliation: Rice Universi
ty\, Member\, School of Mathematics
DTSTART:20230213T190000Z
DTEND:20230213T200000Z
LAST-MODIFIED:20230126T134029Z
LOCATION:Simonyi Hall 101 and Remote Access - see Zoom link below
SUMMARY:Members' Colloquium
URL:https://www.ias.edu/math/events/members-colloquium-44
END:VEVENT
BEGIN:VEVENT
UID:62643264-3538-4836-a363-383438386638
DTSTAMP:20230202T191213Z
CREATED:20221116T182030Z
DESCRIPTION:Topic: Integrality of the Betti Moduli Space\n\nSpeakers: Johan
De Jong\n\nAffiliation: Columbia University \n\nLet X be a smooth project
ive variety over the complex numbers. Let M\nbe the moduli space of irredu
cible representations of the topological\nfundamental group of X of a fixe
d rank r. Then M is a finite type\nscheme over the spectrum of the integer
s Z. One may ask if the\nirreducible components of M surject onto Spec$(Z)
$ or whether M is\npure over Z in some sense. We give a weak answer to the
se questions\nand we discuss what other phenomena can be studied using the
method of\nproof.
DTSTART:20230213T213000Z
DTEND:20230213T220000Z
LAST-MODIFIED:20230125T215148Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:IAS/Princeton Arithmetic Geometry Seminar
URL:https://www.ias.edu/math/events/iasprinceton-arithmetic-geometry-semina
r-0
END:VEVENT
BEGIN:VEVENT
UID:63323537-3937-4466-a134-653164323333
DTSTAMP:20230202T191213Z
CREATED:20221209T183148Z
DESCRIPTION:Speakers: Cosmin Pohoata\n\nAffiliation: Member\, School of Mat
hematics
DTSTART:20230214T153000Z
DTEND:20230214T173000Z
LAST-MODIFIED:20230105T134602Z
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-527
END:VEVENT
BEGIN:VEVENT
UID:34663534-3363-4063-b765-636464353439
DTSTAMP:20230202T191213Z
CREATED:20230131T184653Z
DESCRIPTION:Speakers: Alex Iosevich\n\nAffiliation: University of Rochester
\n\nTo Be Announced
DTSTART:20230214T190000Z
DTEND:20230214T200000Z
LAST-MODIFIED:20230131T184858Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Special Year Research Seminar
URL:https://www.ias.edu/math/events/special-year-research-seminar-19
END:VEVENT
BEGIN:VEVENT
UID:38383963-6361-4439-b663-363938376434
DTSTAMP:20230202T191213Z
CREATED:20221116T191407Z
DESCRIPTION:Topic: Degenerate Dispersion and Illposedness for Generalized S
QG Equations\n\nSpeakers: Dr. In-Jee Jeong\n\nAffiliation: Seoul National
University \n\nGiven a linear equation whose principal term is given by a
degenerate\ndispersive pseudo-differential operator\, we provide a framewo
rk for\nthe construction of degenerating wave packet solutions. As an\napp
lication\, we prove strong ill-posedness for the generalized SQG\nequation
s with singular velocities\, which shows sharpness of existing\nwell-posed
ness results. Joint work with D. Chae and S.-J. Oh.
DTSTART:20230215T200000Z
DTEND:20230215T210000Z
LAST-MODIFIED:20230124T135516Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Analysis and Mathematical Physics
URL:https://www.ias.edu/math/events/analysis-and-mathematical-physics-2
END:VEVENT
BEGIN:VEVENT
UID:36336537-6361-4138-a432-666438373531
DTSTAMP:20230202T191213Z
CREATED:20230119T215604Z
DESCRIPTION:Topic: TBA
DTSTART:20230215T230000Z
DTEND:20230216T010000Z
LAST-MODIFIED:20230119T215641Z
LOCATION:Birch Garden\, Simons Hall
SUMMARY:Mathematical Conversations
URL:https://www.ias.edu/math/events/mathematical-conversations-251
END:VEVENT
BEGIN:VEVENT
UID:38646661-3139-4336-a238-393730663738
DTSTAMP:20230202T191213Z
CREATED:20230130T203131Z
DESCRIPTION:Topic: What is Embedded Contact Homology?\n\nSpeakers: Jo Nelso
n\n\nAffiliation: Member\, School of Mathematics
DTSTART:20230216T180000Z
DTEND:20230216T190000Z
LAST-MODIFIED:20230130T203317Z
LOCATION:Simonyi Hall
SUMMARY:What Is .... ?
URL:https://www.ias.edu/math/events/what-0
END:VEVENT
BEGIN:VEVENT
UID:61613131-3262-4161-b539-643330393638
DTSTAMP:20230202T191213Z
CREATED:20221114T203234Z
DESCRIPTION:
DTSTART:20230216T213000Z
DTEND:20230216T223000Z
LAST-MODIFIED:20230127T161126Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Joint IAS/PU Number Theory Seminar
URL:https://www.ias.edu/math/events/joint-iaspu-number-theory-seminar-13
END:VEVENT
BEGIN:VEVENT
UID:37613965-6566-4266-b231-363136333566
DTSTAMP:20230202T191213Z
CREATED:20221205T203941Z
DESCRIPTION:Topic: Hypersurface Singularities and Spectral Invariants\n\nSp
eakers: Yusuke Kawamoto\n\nAffiliation: ETH Zurich\n\nWe discuss the relat
ion between hypersurface singularities (e.g. ADE\,\n$\widetilde{E}_{6}\,\w
idetilde{E}_{7}\,\widetilde{E}_{8}$\, etc) and\nspectral invariants\, whic
h are symplectic invariants coming from Floer\ntheory.
DTSTART:20230217T141500Z
DTEND:20230217T154500Z
LAST-MODIFIED:20230131T154206Z
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-109
END:VEVENT
BEGIN:VEVENT
UID:32646631-3163-4433-b332-306337396633
DTSTAMP:20230202T191213Z
CREATED:20221116T194140Z
DESCRIPTION:Topic: TBD \n\nSpeakers: Greg Lawler\n\nAffiliation: University
of Chicago
DTSTART:20230217T161500Z
DTEND:20230217T171500Z
LAST-MODIFIED:20221220T164628Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Probability Seminar
URL:https://www.ias.edu/math/events/probability-seminar-17
END:VEVENT
BEGIN:VEVENT
UID:36383737-3734-4936-b637-376664376337
DTSTAMP:20230202T191213Z
CREATED:20221014T133244Z
DESCRIPTION:Topic: TBD
DTSTART:20230217T180000Z
DTEND:20230217T203000Z
LAST-MODIFIED:20230127T143348Z
LOCATION:Dilworth Room
SUMMARY:Milnor Conjecture Learning Seminar
URL:https://www.ias.edu/math/events/milnor-conjecture-learning-seminar-8
END:VEVENT
BEGIN:VEVENT
UID:32636565-3965-4565-a161-613062383936
DTSTAMP:20230202T191213Z
CREATED:20221209T181606Z
DESCRIPTION:Topic: Induced Subgraphs and Tree Decompositions\n\nSpeakers: M
aria Chudnovsky\n\nAffiliation: Princeton University\n\nTree decomposition
s are a powerful tool in both structural graph\ntheory and graph algorithm
s. Many hard problems become tractable if\nthe input graph is known to hav
e a tree decomposition of bounded\n“width”. Exhibiting a particular kind o
f a tree decomposition is\nalso a useful way to describe the structure of
a graph.\n\nTree decompositions have traditionally been used in the contex
t of\nforbidden graph minors\; bringing them into the realm of forbidden\n
induced subgraphs has until recently remained out of reach. Over the\nlast
couple of years we have made significant progress in this\ndirection\, ex
ploring both the classical notion of bounded tree-width\,\nand concepts of
more structural flavor. This talk will survey some of\nthese ideas and re
sults.
DTSTART:20230220T161500Z
DTEND:20230220T171500Z
LAST-MODIFIED:20230123T152432Z
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-533
END:VEVENT
BEGIN:VEVENT
UID:37386133-6431-4132-a265-646333316338
DTSTAMP:20230202T191213Z
CREATED:20221114T181425Z
DESCRIPTION:Topic: TBD
DTSTART:20230220T190000Z
DTEND:20230220T200000Z
LAST-MODIFIED:20221114T181635Z
LOCATION:Simonyi Hall 101 and Remote Access - see Zoom link below
SUMMARY:Members' Colloquium
URL:https://www.ias.edu/math/events/members-colloquium-45
END:VEVENT
BEGIN:VEVENT
UID:33306634-3662-4539-a232-393033366461
DTSTAMP:20230202T191213Z
CREATED:20221206T175135Z
DESCRIPTION:Speakers: Arthur Ogus\n\nAffiliation: University of California\
, Berkeley
DTSTART:20230220T213000Z
DTEND:20230220T223000Z
LAST-MODIFIED:20230125T215259Z
LOCATION:Princeton University\, Fine Hall 314
SUMMARY:Joint IAS/Princeton Arithmetic Geometry Seminar
URL:https://www.ias.edu/math/events/joint-iasprinceton-arithmetic-geometry-
seminar-0
END:VEVENT
BEGIN:VEVENT
UID:64386230-3334-4066-b964-373336633361
DTSTAMP:20230202T191213Z
CREATED:20221209T183303Z
DESCRIPTION:
DTSTART:20230221T153000Z
DTEND:20230221T173000Z
LAST-MODIFIED:20221209T183320Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Computer Science/Discrete Mathematics Seminar II
URL:https://www.ias.edu/math/events/computer-sciencediscrete-mathematics-se
minar-ii-528
END:VEVENT
BEGIN:VEVENT
UID:37353437-6664-4961-b534-306166386137
DTSTAMP:20230202T191213Z
CREATED:20221216T202601Z
DESCRIPTION:Speakers: Matija Bucic\n\nAffiliation: Veblen Research Instruct
or\, School of Mathematics
DTSTART:20230221T153000Z
DTEND:20230221T173000Z
LAST-MODIFIED:20230117T140553Z
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-535
END:VEVENT
BEGIN:VEVENT
UID:33656134-6161-4433-b636-333631623565
DTSTAMP:20230202T191213Z
CREATED:20221214T184746Z
DESCRIPTION:Speakers: Ciprian Demeter\n\nAffiliation: Indiana University\n
\nTo Be Announced
DTSTART:20230221T190000Z
DTEND:20230221T200000Z
LAST-MODIFIED:20230123T160516Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Special Year Research Seminar
URL:https://www.ias.edu/math/events/special-year-research-seminar-13
END:VEVENT
BEGIN:VEVENT
UID:30316562-6534-4332-b230-323163373038
DTSTAMP:20230202T191213Z
CREATED:20221214T185013Z
DESCRIPTION:Speakers: Valentin Blomer\n\nAffiliation: Universität Bonn
DTSTART:20230222T153000Z
DTEND:20230222T170000Z
LAST-MODIFIED:20221214T185141Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Special Year Learning Seminar
URL:https://www.ias.edu/math/events/special-year-learning-seminar-7
END:VEVENT
BEGIN:VEVENT
UID:66313238-3638-4830-b831-613966366331
DTSTAMP:20230202T191213Z
CREATED:20221116T191444Z
DESCRIPTION:Topic: TBD \n\nSpeakers: Trishen Gunaratnam\n\nAffiliation: Uni
versity of Geneva
DTSTART:20230222T200000Z
DTEND:20230222T210000Z
LAST-MODIFIED:20230119T161632Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Analysis and Mathematical Physics
URL:https://www.ias.edu/math/events/analysis-and-mathematical-physics-5
END:VEVENT
BEGIN:VEVENT
UID:36366365-3236-4066-a330-343234343637
DTSTAMP:20230202T191213Z
CREATED:20230119T215650Z
DESCRIPTION:Topic: TBA
DTSTART:20230222T230000Z
DTEND:20230223T010000Z
LAST-MODIFIED:20230119T215724Z
LOCATION:Birch Garden\, Simons Hall
SUMMARY:Mathematical Conversations
URL:https://www.ias.edu/math/events/mathematical-conversations-252
END:VEVENT
BEGIN:VEVENT
UID:33653161-3037-4464-b061-663932633635
DTSTAMP:20230202T191213Z
CREATED:20230130T203357Z
DESCRIPTION:Speakers: Ipsita Datta\n\nAffiliation: Member\, School of Mathe
matics
DTSTART:20230223T180000Z
DTEND:20230223T190000Z
LAST-MODIFIED:20230130T203435Z
LOCATION:Simonyi Hall
SUMMARY:What Is .... ?
URL:https://www.ias.edu/math/events/what-1
END:VEVENT
BEGIN:VEVENT
UID:35323930-3739-4365-b861-633339386130
DTSTAMP:20230202T191213Z
CREATED:20221114T203958Z
DESCRIPTION:
DTSTART:20230223T213000Z
DTEND:20230223T223000Z
LAST-MODIFIED:20221114T204034Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Joint IAS/PU Number Theory Seminar
URL:https://www.ias.edu/math/events/joint-iaspu-number-theory-seminar-19
END:VEVENT
BEGIN:VEVENT
UID:34343437-3166-4162-a434-373861643736
DTSTAMP:20230202T191213Z
CREATED:20221205T204020Z
DESCRIPTION:Topic: TBA
DTSTART:20230224T141500Z
DTEND:20230224T154500Z
LAST-MODIFIED:20221205T204045Z
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-110
END:VEVENT
BEGIN:VEVENT
UID:33303339-3964-4434-a531-343139393066
DTSTAMP:20230202T191213Z
CREATED:20221116T194342Z
DESCRIPTION:Topic: TBD \n\nAffiliation: TBD
DTSTART:20230224T161500Z
DTEND:20230224T171500Z
LAST-MODIFIED:20221116T194357Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Probability Seminar
URL:https://www.ias.edu/math/events/probability-seminar-18
END:VEVENT
BEGIN:VEVENT
UID:39353832-6231-4934-a235-643830373835
DTSTAMP:20230202T191213Z
CREATED:20221014T133328Z
DESCRIPTION:Topic: TBD
DTSTART:20230224T180000Z
DTEND:20230224T203000Z
LAST-MODIFIED:20230127T143426Z
LOCATION:Rubenstein Commons | Meeting Room 5
SUMMARY:Milnor Conjecture Learning Seminar
URL:https://www.ias.edu/math/events/milnor-conjecture-learning-seminar-6
END:VEVENT
BEGIN:VEVENT
UID:35326338-6532-4563-a130-363239343233
DTSTAMP:20230202T191213Z
CREATED:20230127T141651Z
DESCRIPTION:Topic: Hardy-Littlewood and Chowla Type Conjectures in the Pres
ence of a Siegel Zero\n\nSpeakers: Terence Tao\n\nAffiliation: Member\, Sc
hool of Mathematics\n\nAbstract: We discuss some consequences of the exist
ence of a Siegel\nzero for various questions relating to the distribution
of the prime\nnumbers\, and in particular to conjectures of Hardy-Littlewo
od and\nChowla type. This is joint work with Joni Teravainen.
DTSTART:20230227T150000Z
DTEND:20230227T160000Z
LAST-MODIFIED:20230127T201725Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Workshop on Dynamics\, Discrete Analysis and Multiplicative Number
Theory
URL:https://www.ias.edu/math/events/workshop-dynamics-discrete-analysis-and
-multiplicative-number-theory-0
END:VEVENT
BEGIN:VEVENT
UID:38313435-6665-4331-b764-336264613863
DTSTAMP:20230202T191213Z
CREATED:20221104T175140Z
DESCRIPTION:_SPONSORED BY DR. JOHN P. HEMPEL_\n\nIN PERSON ATTENDANCE IS BY
INVITATION ONLY. ALL TALKS WILL BY HYBRID\nVIA ZOOM. \n\nOrganizers: Mar
iusz Lemanczyk (IAS)\, Tamar Ziegler (IAS)\n\nConfirmed Speakers:\nTeresa
Anderson (Carnegie Mellon)\nVitaly Bergerlson (IAS)\nValentin Blomer (Univ
ersität Bonn)\nThierry De la Rue (LMRS)\nNikos Frantzikinakis (IAS)\nAdam
Kanigowski (Univ Maryland)\nJoanna Kulaga Przymus (Uniwersytet Mikołaja Ko
pernika)\n[http://www.umk.pl]\nFreddie Manners (IAS)\nMariusz Mirek (IAS)
\nJoel Moreira (IAS)\nFlorian Richter (IAS)\nTerry Tao (IAS)\nJoni Teravai
nen (IAS)\nHong Wang (UCLA)\nZhiren Wang (IAS)\n\nAgenda (please click her
e)\n[https://www.ias.edu/event-series/special-year-math-workshop]
DTSTART:20230227T150000Z
DTEND:20230303T171500Z
LAST-MODIFIED:20230201T200608Z
LOCATION:
SUMMARY:Workshop on Dynamics\, Discrete Analysis and Multiplicative Number
Theory
URL:https://www.ias.edu/math/events/workshop-dynamics-discrete-analysis-and
-multiplicative-number-theory
END:VEVENT
BEGIN:VEVENT
UID:62623735-3636-4436-a537-306233626262
DTSTAMP:20230202T191213Z
CREATED:20230127T142427Z
DESCRIPTION:Topic: The Unipotent Mixing Conjecture\n\nSpeakers: Valentin Bl
omer\n\nAffiliation: Universität Bonn\n\nAbstract: Low-lying horocycles ar
e known to equidistribute on the\nmodular curve. Here we consider the join
t distribution of two\nlow-lying horocycles of different speeds in the pro
duct of two modular\ncurves and show equidistribution under certain necess
ary diophantine\nconditions. The techniques involve a combination of multi
plicative\nnumber theory and ergodic theory. This is joint work with Phili
ppe\nMichel.
DTSTART:20230227T161500Z
DTEND:20230227T171500Z
LAST-MODIFIED:20230127T201756Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Workshop on Dynamics\, Discrete Analysis and Multiplicative Number
Theory
URL:https://www.ias.edu/math/events/workshop-dynamics-discrete-analysis-and
-multiplicative-number-theory-1
END:VEVENT
BEGIN:VEVENT
UID:32383365-3232-4166-b338-323865346362
DTSTAMP:20230202T191213Z
CREATED:20230127T150445Z
DESCRIPTION:Topic: On Random Polynomials and Counting Number Fields: Fourie
r Analysis Meets Arithmetic Statistics\n\nSpeakers: Theresa Anderson\n\nAf
filiation: Carnegie Mellon University\n\nAbstract: Behaviors of objects of
algebraic interest\, such as\npolynomials\, elliptic curves and number fi
elds -- many of which are\nstill unknown -- fall into the field of arithme
tic statistics.. By\nbringing in Fourier analysis to interplay with a wid
e variety of\nnumber theoretic techniques\, we were recently able to impro
ve our\ncounting tools. Today I'll discuss predicting random polynomials
and\ndetermining how many number fields of a given degree there are\, both
\nusing these techniques in different ways.
DTSTART:20230227T190000Z
DTEND:20230227T200000Z
LAST-MODIFIED:20230127T201855Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Workshop on Dynamics\, Discrete Analysis and Multiplicative Number
Theory
URL:https://www.ias.edu/math/events/workshop-dynamics-discrete-analysis-and
-multiplicative-number-theory-2
END:VEVENT
BEGIN:VEVENT
UID:63646637-6434-4533-b238-336165653431
DTSTAMP:20230202T191213Z
CREATED:20221207T160831Z
DESCRIPTION:Topic: From Embedded Contact Homology to Surface Dynamics\n\nSp
eakers: Jo Nelson\n\nAffiliation: Rice University\; Member\, School of Mat
hematics \n\nI will discuss work in progress with Morgan Weiler on knot fi
ltered\nembedded contact homology (ECH) of open book decompositions of S^3
\nalong T(2\,q) torus knots to deduce information about the dynamics of\ns
ymplectomorphisms of the genus (q-1)/2 pages which are freely\nisotopic to
rotation by 1/(2q) along the boundary. I will explain the\ninterplay betw
een the topology of the open book\, its presentation as\nan orbi-bundle\,
and our computation of the knot filtered ECH chain\ncomplex. I will descr
ibe how knot filtered ECH realizes the\nrelationship between the action an
d linking of Reeb orbits and its\napplication to the study of the Calabi i
nvariant and periodic orbits\nof symplectomorphisms of the pages.
DTSTART:20230227T210000Z
DTEND:20230227T223000Z
LAST-MODIFIED:20230126T161859Z
LOCATION:Rubenstein Commons | Meeting Room 5
SUMMARY:Joint IAS/Princeton University Symplectic Geometry Seminar
URL:https://www.ias.edu/math/events/joint-iasprinceton-university-symplecti
c-geometry-seminar-204
END:VEVENT
BEGIN:VEVENT
UID:35653030-6361-4539-b237-323961656238
DTSTAMP:20230202T191213Z
CREATED:20230127T151149Z
DESCRIPTION:Topic: Arbitrarily Slow Decay in the Mobius Disjointness Conjec
ture \n\nSpeakers: Zhiren Wang\n\nAffiliation: Von Neumann Fellow\, School
of Mathematics\n\nAbstract: We construct examples showing that the correl
ation in the\nMobius disjointness conjecture can go to zero arbitrarily sl
owly. In\nfact\, our methods yield a more general result\, where in lieu o
f μ(n)\none can put any bounded sequence such that the Cesàro mean of the
\ncorresponding sequence of absolute values does not tend to zero. This\ni
s a joint work with Amir Algom.
DTSTART:20230228T150000Z
DTEND:20230228T160000Z
LAST-MODIFIED:20230127T201928Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Workshop on Dynamics\, Discrete Analysis and Multiplicative Number
Theory
URL:https://www.ias.edu/math/events/workshop-dynamics-discrete-analysis-and
-multiplicative-number-theory-3
END:VEVENT
BEGIN:VEVENT
UID:65666335-3732-4764-b235-336163666432
DTSTAMP:20230202T191213Z
CREATED:20230127T154514Z
DESCRIPTION:Topic: On a Conjecture of Veech About Möbius Orthogonality\n\nS
peakers: Thierry de la Rue\n\nAffiliation: CNRS-Université de Rouen Norman
die\n\nAbstract: In unpublished lecture notes\, William A. Veech considere
d\nthe following potential property of the Möbius function:\n'In any Furst
enberg system of the Möbius function\, the\nzero-coordinate is orthogonal
to any function measurable with respect\nto the Pinsker sigma-algebra of t
he system.'\nVeech proved that this property would imply the validity of S
arnak's\nconjecture\, that is orthogonality of the Möbius function to any
\ntopological dynamical system of zero entropy. He also conjectured that\n
both properties are equivalent.\n\nIn this talk based on a joint work Adam
Kanigowski\, Joanna\nKułaga-Przymus and Mariusz Lemańczyk\, I will sketch
the proof of\nthis equivalence. Our proof is in fact valid in a more gene
ral\nsetting.\n\nWe introduce the notion of 'characteristic classes' of\nm
easure-theoretic dynamical systems\, which are classes stable by\ntaking f
actors and joinings. (The class of systems whose\nKolmogorov-Sinai entropy
vanishes is an example of such a\ncharacteristic class.) The equivalence
conjectured by Veech remains\ntrue if we replace the zero-entropy property
by any class of\ntopological dynamical systems whose visible invariant me
asures remain\nin a given characteristic class\, provided the Pinsker sigm
a-algebra is\nalso replaced by the maximum factor sigma-algebra in this\nc
haracteristic class. The Möbius function can also be replaced by any\nboun
ded arithmetic function.\n\nI will also discuss the combinatorial property
of the arithmetic\nfunction that follows from the Veech condition.
DTSTART:20230228T161500Z
DTEND:20230228T171500Z
LAST-MODIFIED:20230127T202007Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Workshop on Dynamics\, Discrete Analysis and Multiplicative Number
Theory
URL:https://www.ias.edu/math/events/workshop-dynamics-discrete-analysis-and
-multiplicative-number-theory-4
END:VEVENT
BEGIN:VEVENT
UID:64303661-6466-4666-b063-313438653963
DTSTAMP:20230202T191213Z
CREATED:20230127T160113Z
DESCRIPTION:Topic: Gowers Uniformity of Arithmetic Functions in Short Inter
vals\n\nSpeakers: Joni Teräväinen\n\nAffiliation: Von Neumann Fellow\, Sch
ool of Mathematics\n\nAbstract: I will present results establishing cancel
lation in short\nsums of arithmetic functions (in particular the von Mango
ldt and\ndivisor functions) twisted by polynomial exponential phases\, or
more\ngeneral nilsequence phases. These results imply the Gowers uniformit
y\nof suitably normalized versions of these functions in intervals of\nlen
gth $X^{c}$ around $X$ for suitable values of $c$ (depending on the\nfunct
ion and on whether one considers all or almost all short sums). I\nwill al
so discuss applications to averaged forms of the\nHardy-Littlewood conject
ure. This is based on joint works with Kaisa\nMatomäki\, Maksym Radziwiłł\
, Xuancheng Shao and Terence Tao.
DTSTART:20230228T190000Z
DTEND:20230228T200000Z
LAST-MODIFIED:20230127T202045Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Workshop on Dynamics\, Discrete Analysis and Multiplicative Number
Theory
URL:https://www.ias.edu/math/events/workshop-dynamics-discrete-analysis-and
-multiplicative-number-theory-5
END:VEVENT
BEGIN:VEVENT
UID:63313563-6636-4065-a431-663039363833
DTSTAMP:20230202T191213Z
CREATED:20230202T190213Z
DESCRIPTION:
DTSTART:20230228T200000Z
DTEND:20230228T220000Z
LAST-MODIFIED:20230202T190717Z
LOCATION:Rubenstein Commons | Meeting Room 5
SUMMARY:Reading Seminar on Perelman's Stability Theorem
URL:https://www.ias.edu/math/events/reading-seminar-perelmans-stability-the
orem
END:VEVENT
BEGIN:VEVENT
UID:64353933-3431-4230-b938-346265306236
DTSTAMP:20230202T191213Z
CREATED:20230127T160530Z
DESCRIPTION:Topic: Thermodynamic Formalism for B-free Dynamical Systems\n\n
Speakers: Joana Kulaga-Przymus\n\nAffiliation: Uniwersytet Mikołaja Kopern
ika\n\nAbstract: Given $B \subset N$\, we consider the corresponding set\n
$_F_B$ of $B$-free integers\, i.e. _$n \in__ F_B i_ no _b \in__ _B$\ndivid
es _$n$_. We $de_{ne} _X \eta__}$ the B-free subshift _ as the\nsmallest s
ubshift containing _$\eta _:= 1_F_B \in_ {_0_\, _1_}_Z$. Such\nsystems are
interesting both from the dynamical and number theoretical\nviewpoint and
can manifest various types of behavior. I will\nconcentrate on the entrop
y and its generalization _ topological\npressure\, with some applications
in combinatorics / number theory.\nTalk will be based on a joint work with
Michael Lemanczyk and Michael\nRams.
DTSTART:20230301T150000Z
DTEND:20230301T160000Z
LAST-MODIFIED:20230127T202147Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Workshop on Dynamics\, Discrete Analysis and Multiplicative Number
Theory
URL:https://www.ias.edu/math/events/workshop-dynamics-discrete-analysis-and
-multiplicative-number-theory-6
END:VEVENT
BEGIN:VEVENT
UID:30613238-3931-4233-a339-363332363030
DTSTAMP:20230202T191213Z
CREATED:20221216T143621Z
DESCRIPTION:Topic: What have we learned from the Archimedes Palimpsest?\n\n
Speakers: William Noel\, Reviel Netz\n\nAffiliation: Princeton University\
; Stanford University\n\nThe main source for the works of Archimedes is a
medieval manuscript\,\nwritten originally around in 975 CE and then erased
and covered with a\nprayerbook in the year 1229. Briefly studied in 1906\
, the full\ncontents of the manuscripts were finally revealed in recent ye
ars with\nthe aid of modern technologies. Reviel Netz and William Noel\,\n
editors of the works of Archimedes\, lead us through this process of\ndisc
overy and discusses some of the main revelations.\n\nAbout the speakers: W
illiam Noel is the John T. Maltsberger III '55\nAssociate University Libra
rian for Special Collections at Princeton\nUniversity Library. Among his p
ublications is The Archimedes Codex\,\nwith Reviel Netz. Reviel Netz is P
atrick Suppes Professor of\nGreek Mathematics and Astronomy at Stanford Un
iversity. Most recently\,\nhe is the author of A New History of Greek Math
ematics (CUP 2022).
DTSTART:20230301T161500Z
DTEND:20230301T171500Z
LAST-MODIFIED:20230124T144505Z
LOCATION:Rubenstein Commons | Meeting Room 5
SUMMARY:Lecture in History of Mathematics
URL:https://www.ias.edu/math/events/lecture-history-mathematics
END:VEVENT
BEGIN:VEVENT
UID:33316138-3364-4637-b764-353437663638
DTSTAMP:20230202T191213Z
CREATED:20230127T161151Z
DESCRIPTION:Topic: Projection Theorems and Applications \n\nSpeakers: Hong
Wang\n\nAffiliation: University of California\, Los Angeles\n\nAbstract: G
iven a fractal set E in $R^n$ and a set F in $Gr(k\,n)$\, can\nwe find k-p
lane S in F such that the orthogonal projection of E onto S\nis large? \n
\nWe will survey some\nclassical and recent projection theorems and discus
s\ntheir applications. This is based on joint works with Gan\, Guo\,\nGut
h\, Harris\, Maldague\, Orponen\, and Shmerkin\,
DTSTART:20230301T161500Z
DTEND:20230301T171500Z
LAST-MODIFIED:20230127T202218Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Workshop on Dynamics\, Discrete Analysis and Multiplicative Number
Theory
URL:https://www.ias.edu/math/events/workshop-dynamics-discrete-analysis-and
-multiplicative-number-theory-8
END:VEVENT
BEGIN:VEVENT
UID:35633361-3132-4138-a361-356366343930
DTSTAMP:20230202T191213Z
CREATED:20230127T161413Z
DESCRIPTION:Topic: Distribution of Orbits at Prime and Semi-prime Times \n
\nSpeakers: Adam Kanigowski\n\nAffiliation: University of Maryland\n\nAbst
ract: For a topological dynamical systems (T\, X) and a fixed $x\n\in X$ w
e are interested in the distribution of prime and semi-prime\norbits\, i.e
. ${T px}p='$ and ${T p1p2 x}p1\,p2='$. We are interested in\nsystems for
which the related sequences of empirical measures\n\n$$1/ \pi(_N _) \Sum_p
\leq N 1 \delta__T__ __pX __ and 1/\pi_2 (N)\n\delta__T__ __p_1_p_2 _x$$_
\n\nhave a limit for every $x \in X$ (we then say that (T\, X) satisfies a
\nPNT or SPNT respectively). It turns out that there are not so many\nexam
ples of such systems. Our knowledge is especially limited for\nsystems whi
ch have some non-trivial chaotic behavior\, for example\nweak-mixing or mi
xing systems. I will discuss some known results and\nsome recent progress.
I will focus on examples of smooth and weakly\nmixing systems which satis
fy a PNT and also on some mixing systems\nwhich satisfy a PNT. Finally I w
ill discuss the case of SPNT for\nhorocycle flows.
DTSTART:20230301T190000Z
DTEND:20230301T200000Z
LAST-MODIFIED:20230127T202301Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Workshop on Dynamics\, Discrete Analysis and Multiplicative Number
Theory
URL:https://www.ias.edu/math/events/workshop-dynamics-discrete-analysis-and
-multiplicative-number-theory-9
END:VEVENT
BEGIN:VEVENT
UID:36636262-3130-4161-a430-393935346435
DTSTAMP:20230202T191213Z
CREATED:20221116T191557Z
DESCRIPTION:Topic: TBD
DTSTART:20230301T200000Z
DTEND:20230301T210000Z
LAST-MODIFIED:20230119T161710Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Analysis and Mathematical Physics
URL:https://www.ias.edu/math/events/analysis-and-mathematical-physics-6
END:VEVENT
BEGIN:VEVENT
UID:35313063-3064-4130-b033-336131333261
DTSTAMP:20230202T191213Z
CREATED:20230119T220347Z
DESCRIPTION:Topic: TBA
DTSTART:20230301T230000Z
DTEND:20230302T010000Z
LAST-MODIFIED:20230119T220421Z
LOCATION:Birch Garden\, Simons Hall
SUMMARY:Mathematical Conversations
URL:https://www.ias.edu/math/events/mathematical-conversations-253
END:VEVENT
BEGIN:VEVENT
UID:38336630-6163-4530-a533-323533623034
DTSTAMP:20230202T191213Z
CREATED:20230127T161820Z
DESCRIPTION:Topic: Infinite Sumsets in Sets with Positive Density \n\nSpeak
ers: Joel Moreira\n\nAffiliation: Member\, School of Mathematics\n\nABSTRA
CT: In the 1970’s Erdos asked several questions about what\nkind of infini
te structures can be found in every set of natural\nnumbers with positive
density. In recent joint work with Kra\, Richter\nand Robertson we proved
that every such set A can be shifted to\ncontain a (restricted) sumset B+B
for some infinite subset B of A. The\nproof involves a modification of th
e 'correspondence principle' of\nFurstenberg to transfer the problem into
a dynamical statement\,\nfollowed by an analysis of the ergodic decomposit
ion of self-products.
DTSTART:20230302T150000Z
DTEND:20230302T160000Z
LAST-MODIFIED:20230127T202335Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Workshop on Dynamics\, Discrete Analysis and Multiplicative Number
Theory
URL:https://www.ias.edu/math/events/workshop-dynamics-discrete-analysis-and
-multiplicative-number-theory-7
END:VEVENT
BEGIN:VEVENT
UID:66383337-3838-4161-a130-303139633265
DTSTAMP:20230202T191213Z
CREATED:20230127T162505Z
DESCRIPTION:Topic: Higher Order Sumsets in Sets of Positive Density\n\nSpea
kers: Florian K Richter\n\nAffiliation: Member\, School of Mathematics\n\n
Abstract: In this talk we present a natural generalization of a sumset\nco
njecture of Erdos to higher orders\, asserting that every subset of\nthe i
ntegers with positive density contains a sumset $B_1+\ldots +B_k$\nwhere $
B_1\, \ldots \, B_k$ are infinite. Our method relies on a\nnewfound connec
tion between k-fold sumsets in the integers and return\ntimes of orbits in
k-fold joinings of measure preserving systems\narising from the Host-Kra
structure theory. This talk is based on\njoint work with Kra\, Moreira\, a
nd Robertson.
DTSTART:20230302T161500Z
DTEND:20230302T171500Z
LAST-MODIFIED:20230127T202410Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Workshop on Dynamics\, Discrete Analysis and Multiplicative Number
Theory
URL:https://www.ias.edu/math/events/workshop-dynamics-discrete-analysis-and
-multiplicative-number-theory-10
END:VEVENT
BEGIN:VEVENT
UID:36636266-6466-4562-a433-613632333766
DTSTAMP:20230202T191213Z
CREATED:20230127T162718Z
DESCRIPTION:Topic: Limit Formulas for Polynomial Ergodic Averages with Comm
uting Transformations\n\nSpeakers: Nikos Frantzikinakis\n\nAffiliation: Me
mber\, School of Mathematics\n\nAbstract. The works of Furstenberg and Ber
gelson-Leibman on the\nSzemeredi theorem and its polynomial extension moti
vated the study of\nthe limiting behavior of multiple ergodic averages of
commuting\ntransformations with polynomial iterates. Following important w
orksof\nConze-Lesigne\, Host-Kra\, Ziegler\, Tao\, and others\, their norm
\nconvergence was establishedin full generality by Walsh. But little has\n
been known about their limit\, even in the seemingly simple case of two\nc
ommuting weakly mixing transformations with iterates given by\nindependent
polynomials.\n\nI will discuss recent joint work with B. Kuca\, where we
use a new\napproach to somewhat rectify the situation and answer several n
atural\nopen problems.
DTSTART:20230302T190000Z
DTEND:20230302T200000Z
LAST-MODIFIED:20230127T202451Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Workshop on Dynamics\, Discrete Analysis and Multiplicative Number
Theory
URL:https://www.ias.edu/math/events/workshop-dynamics-discrete-analysis-and
-multiplicative-number-theory-11
END:VEVENT
BEGIN:VEVENT
UID:32326433-6432-4366-b237-663736626439
DTSTAMP:20230202T191213Z
CREATED:20230127T163049Z
DESCRIPTION:Topic: The Complexity of Multilinear Averages\n\nSpeakers: Fred
erick Manners\n\nAffiliation: Von Neumann Fellow\, School of Mathematics\n
\nAbstract: A central question in additive combinatorics is to determine\n
what class of structured functions is enough to determine multilinear\nave
rages such as\n\n$\mathbb{E}_{x\,a} f_1(x) f_2(x+a) f_3(x+2a) f_4(x+3a)$.
\n\nIn ergodic theory the analogous question is to determine the correct\n
characteristic factor. Determining the exact structure is hard\, but a\nwe
aker question is to ask whether two systems have _the same_ class of\nstru
ctured functions / characteristic factor. An example is the 'true\ncomplex
ity' problem of Gowers and Wolf. Sometimes these questions have\nelementar
y solutions\, e.g. by repeated application of the\nCauchy--Schwarz inequal
ity\; at other times\, such proofs are not known.\n\nWe will discuss this
phenomenon\, and in particular describe a method\nfor obtaining 'elementar
y' proofs that are too complicated to\ndescribe by hand.
DTSTART:20230302T210000Z
DTEND:20230302T220000Z
LAST-MODIFIED:20230127T202520Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Workshop on Dynamics\, Discrete Analysis and Multiplicative Number
Theory
URL:https://www.ias.edu/math/events/workshop-dynamics-discrete-analysis-and
-multiplicative-number-theory-12
END:VEVENT
BEGIN:VEVENT
UID:63326363-6136-4263-b464-396265633365
DTSTAMP:20230202T191213Z
CREATED:20221114T203355Z
DESCRIPTION:
DTSTART:20230302T213000Z
DTEND:20230302T223000Z
LAST-MODIFIED:20221114T203422Z
LOCATION:Princeton University\, Fine Hall 214
SUMMARY:Joint IAS/PU Number Theory Seminar
URL:https://www.ias.edu/math/events/joint-iaspu-number-theory-seminar-14
END:VEVENT
BEGIN:VEVENT
UID:62653436-6332-4232-b563-343335383466
DTSTAMP:20230202T191213Z
CREATED:20221205T204105Z
DESCRIPTION:Topic: TBA
DTSTART:20230303T141500Z
DTEND:20230303T154500Z
LAST-MODIFIED:20221205T204126Z
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-111
END:VEVENT
BEGIN:VEVENT
UID:36653463-3135-4531-b838-303865356331
DTSTAMP:20230202T191213Z
CREATED:20230127T194822Z
DESCRIPTION:Topic: Polynomial Progressions in Topological Fields and Their
Applications to Pointwise Convergence Problems \n\nSpeakers: Mariusz Mirek
\n\nAffiliation: Member\, School of Mathematics\n\nAbstract: We will discu
ss multilinear variants of Weyl's inequality\nfor the exponential sums ari
sing in pointwise convergence problems\nrelated to the Furstenberg-Bergels
on-Leibman conjecture. We will also\nillustrate how to use the multilinear
Weyl inequality to derive\nquantitative bounds (in the spirit of Peluse a
nd Prendiville) in\nSzemeredi's theorems for polynomial progressions in to
pological\nfields.
DTSTART:20230303T150000Z
DTEND:20230303T160000Z
LAST-MODIFIED:20230127T202610Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Workshop on Dynamics\, Discrete Analysis and Multiplicative Number
Theory
URL:https://www.ias.edu/math/events/workshop-dynamics-discrete-analysis-and
-multiplicative-number-theory-13
END:VEVENT
BEGIN:VEVENT
UID:30653739-3166-4632-b463-343939363166
DTSTAMP:20230202T191213Z
CREATED:20230127T195401Z
DESCRIPTION:Topic: Asymptotic Total Ergodicity and Polynomial Patterns in F
inite Fields\n\nSpeakers: Vitaly Bergelson\n\nAffiliation: Member\, School
of Mathematics\n\nAbstract: A version of the polynomial Szemer´edi theore
m was shown to\nhold in finite fields in [BLM05]. In particular\, one has
patterns\n\n${x\, x + P1(n)\, . . . \, x + Pk(n)}$ (1)\n\nfor polynomials
with zero constant term in large subsets of finite\nfields. When the polyn
omials Pi(n) are independent\, one can get a\nsubstantial refinement regar
ding the size of subsets in which the\npatterns (1) can be found. This was
done by Peluse ([P19]) for finite\nfields of sufficiently large character
istic. In joint work with Ethan\nAckelsberg ([AB23+])\, we establish a com
plementary result for Fpk when\np is fixed and k is large enough. Our resu
lt also holds without the\nassumption that Pi(0) = 0. Our approach is guid
ed by the fact that the\ndynamics of large fields acting on themselves is
asymptotically\ntotally ergodic. The phenomenon of asymptotic total ergodi
city is\nactually quite general and is valid for families of finite rings
\nincluding\n\n$Z/NZ ([BB23]) and Fq[t]/Q(t)Fq[t]$ ([AB23+]) under some na
tural\nconditions on $N ∈ N and Q(t) ∈ Fq[t].$\n\nThis\, in turn\, leads t
o the phenomenon of asymptotic joint ergodicity\nalong independent polynom
ials. As a consequence\, we obtain an\nasymptotic count (similar to that o
batined in [P19]) on the number of\npatterns\n\nin (1) in the case of inde
pendent polynomials when the characteristic\np is fixed (and q = pk grows)
. Similar combinatorial results hold\nasymptotically for more general fami
lies of rings ([AB23+\, BB23+]).\n\n[AB23+] Ethan Ackelsberg and Vitaly Be
rgelson. Ongoing joint work.\n\n[BB23] Vitaly Bergelson and Andrew Best. T
he Furstenberg-S´ark¨ozy\ntheorem and asymptotic total ergodicity\n\npheno
mena in modular rings. J. Number Theory\, 243 (2023) 615–645.\n\n[BB23+] V
italy Bergelson and Andrew Best. Ongoing joint work.\n\n[BLM05] Vitaly Ber
gelson\, Alexander Leibman\, and Randall McCutcheon.\nPolynomial Szemer´ed
i theorems\n\nfor countable modules over integral domains and finite field
s. J.\nAnal. Math.\, 95 (2005) 243–296.\n\n[P19] Sarah Peluse. On the poly
nomial Szemer´edi theorem in finite\nfields. Duke Math J.\, 168 (2019) 749
–774.
DTSTART:20230303T161500Z
DTEND:20230303T171500Z
LAST-MODIFIED:20230127T195657Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Workshop on Dynamics\, Discrete Analysis and Multiplicative Number
Theory
URL:https://www.ias.edu/math/events/workshop-dynamics-discrete-analysis-and
-multiplicative-number-theory-14
END:VEVENT
BEGIN:VEVENT
UID:39306662-3933-4332-a663-623661383134
DTSTAMP:20230202T191213Z
CREATED:20221014T133404Z
DESCRIPTION:Topic: TBD
DTSTART:20230303T180000Z
DTEND:20230303T203000Z
LAST-MODIFIED:20230127T143514Z
LOCATION:Dilworth Room
SUMMARY:Milnor Conjecture Learning Seminar
URL:https://www.ias.edu/math/events/milnor-conjecture-learning-seminar-9
END:VEVENT
BEGIN:VEVENT
UID:64373562-6564-4539-b431-626333326332
DTSTAMP:20230202T191213Z
CREATED:20221209T181630Z
DESCRIPTION:Speakers: Anupam Gupta\n\nAffiliation: Carnegie Mellon Universi
ty
DTSTART:20230306T161500Z
DTEND:20230306T171500Z
LAST-MODIFIED:20230105T135139Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Computer Science/Discrete Mathematics Seminar I
URL:https://www.ias.edu/math/events/computer-sciencediscrete-mathematics-se
minar-i-534
END:VEVENT
BEGIN:VEVENT
UID:61643431-3936-4837-a339-373635633830
DTSTAMP:20230202T191213Z
CREATED:20221114T181655Z
DESCRIPTION:Topic: TBD
DTSTART:20230306T190000Z
DTEND:20230306T200000Z
LAST-MODIFIED:20221114T181757Z
LOCATION:Simonyi Hall 101 and Remote Access - see Zoom link below
SUMMARY:Members' Colloquium
URL:https://www.ias.edu/math/events/members-colloquium-46
END:VEVENT
BEGIN:VEVENT
UID:61633165-3134-4462-a663-343330396338
DTSTAMP:20230202T191213Z
CREATED:20221206T175337Z
DESCRIPTION:Speakers: Ananth Shankar\n\nAffiliation: University of Wisconsi
n-Madison - MSRI
DTSTART:20230306T210000Z
DTEND:20230306T223000Z
LAST-MODIFIED:20230106T190254Z
LOCATION:Princeton University\, Fine Hall 314
SUMMARY:Joint IAS/Princeton Arithmetic Geometry Seminar
URL:https://www.ias.edu/math/events/joint-iasprinceton-arithmetic-geometry-
seminar-1
END:VEVENT
BEGIN:VEVENT
UID:66393234-3138-4035-a336-303733383164
DTSTAMP:20230202T191213Z
CREATED:20221207T183711Z
DESCRIPTION:Speakers: Joseph Helfer\n\nAffiliation: University of Southern
California
DTSTART:20230306T210000Z
DTEND:20230306T223000Z
LAST-MODIFIED:20221207T190615Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Joint IAS/Princeton University Symplectic Geometry Seminar
URL:https://www.ias.edu/math/events/joint-iasprinceton-university-symplecti
c-geometry-seminar-210
END:VEVENT
BEGIN:VEVENT
UID:63303737-6637-4635-b334-613365366362
DTSTAMP:20230202T191213Z
CREATED:20221209T183341Z
DESCRIPTION:Speakers: Eshan Chattopadhyay\n\nAffiliation: Cornell Universit
y
DTSTART:20230307T153000Z
DTEND:20230307T173000Z
LAST-MODIFIED:20230105T135235Z
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-529
END:VEVENT
BEGIN:VEVENT
UID:62633736-3931-4533-b037-373833636530
DTSTAMP:20230202T191213Z
CREATED:20230123T160525Z
DESCRIPTION:Speakers: David Conlon\n\nAffiliation: Caltech\n\nTo Be Announc
ed
DTSTART:20230307T190000Z
DTEND:20230307T200000Z
LAST-MODIFIED:20230123T160721Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Special Year Research Seminar
URL:https://www.ias.edu/math/events/special-year-research-seminar-14
END:VEVENT
BEGIN:VEVENT
UID:66306665-3866-4364-b133-373435396231
DTSTAMP:20230202T191213Z
CREATED:20230123T160729Z
DESCRIPTION:Speakers: Asgar Jamneshan \n\nAffiliation: Koc University\n\nTo
Be Announced
DTSTART:20230307T203000Z
DTEND:20230307T213000Z
LAST-MODIFIED:20230123T160902Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Special Year Research Seminar
URL:https://www.ias.edu/math/events/special-year-research-seminar-17
END:VEVENT
BEGIN:VEVENT
UID:37313234-6462-4737-a537-623738353463
DTSTAMP:20230202T191213Z
CREATED:20221116T192846Z
DESCRIPTION:Topic: TBD \n\nSpeakers: Terence Tao\n\nAffiliation: University
of California\, Los Angeles
DTSTART:20230308T200000Z
DTEND:20230308T210000Z
LAST-MODIFIED:20230119T161751Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Analysis and Mathematical Physics
URL:https://www.ias.edu/math/events/analysis-and-mathematical-physics-8
END:VEVENT
BEGIN:VEVENT
UID:38383563-3731-4238-b261-353731643732
DTSTAMP:20230202T191213Z
CREATED:20230119T220441Z
DESCRIPTION:Topic: TBA
DTSTART:20230308T230000Z
DTEND:20230309T010000Z
LAST-MODIFIED:20230119T220508Z
LOCATION:Birch Garden\, Simons Hall
SUMMARY:Mathematical Conversations
URL:https://www.ias.edu/math/events/mathematical-conversations-254
END:VEVENT
BEGIN:VEVENT
UID:32383035-3064-4639-a538-353532393262
DTSTAMP:20230202T191213Z
CREATED:20221114T204117Z
DESCRIPTION:
DTSTART:20230309T213000Z
DTEND:20230309T223000Z
LAST-MODIFIED:20221114T204146Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Joint IAS/PU Number Theory Seminar
URL:https://www.ias.edu/math/events/joint-iaspu-number-theory-seminar-20
END:VEVENT
BEGIN:VEVENT
UID:66643137-3663-4364-b937-356664373038
DTSTAMP:20230202T191213Z
CREATED:20221116T194437Z
DESCRIPTION:Topic: TBD \n\nSpeakers: Rémi Rhodes\n\nAffiliation: Institut d
e Mathématiques de Marseille
DTSTART:20230310T161500Z
DTEND:20230310T171500Z
LAST-MODIFIED:20230120T203549Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Probability Seminar
URL:https://www.ias.edu/math/events/probability-seminar-20
END:VEVENT
BEGIN:VEVENT
UID:66636630-3461-4737-b164-343437316636
DTSTAMP:20230202T191213Z
CREATED:20221014T133456Z
DESCRIPTION:Topic: TBD
DTSTART:20230310T180000Z
DTEND:20230310T203000Z
LAST-MODIFIED:20230127T143604Z
LOCATION:Rubenstein Commons | Meeting Room 5
SUMMARY:Milnor Conjecture Learning Seminar
URL:https://www.ias.edu/math/events/milnor-conjecture-learning-seminar-10
END:VEVENT
BEGIN:VEVENT
UID:61653230-6333-4431-b139-616565393632
DTSTAMP:20230202T191213Z
CREATED:20221209T181755Z
DESCRIPTION:Speakers: Chinmay Nirkhe\n\nAffiliation: IBM
DTSTART:20230313T151500Z
DTEND:20230313T161500Z
LAST-MODIFIED:20230105T135349Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Computer Science/Discrete Mathematics Seminar I
URL:https://www.ias.edu/math/events/computer-sciencediscrete-mathematics-se
minar-i-535
END:VEVENT
BEGIN:VEVENT
UID:34373935-3635-4130-a332-356366363839
DTSTAMP:20230202T191213Z
CREATED:20221114T181830Z
DESCRIPTION:Topic: TBD\n\nSpeakers: Terence Tao\n\nAffiliation: University
of California\, Los Angeles\; Member\, School of Mathematics
DTSTART:20230313T180000Z
DTEND:20230313T190000Z
LAST-MODIFIED:20230126T134957Z
LOCATION:Simonyi Hall 101 and Remote Access - see Zoom link below
SUMMARY:Members' Colloquium
URL:https://www.ias.edu/math/events/members-colloquium-47
END:VEVENT
BEGIN:VEVENT
UID:35653334-6165-4364-b131-626663613939
DTSTAMP:20230202T191213Z
CREATED:20221207T161122Z
DESCRIPTION:Topic: TBA\n\nSpeakers: Abror Pirnapasov\n\nAffiliation: École
Normale Supérieure de Lyon
DTSTART:20230313T200000Z
DTEND:20230313T213000Z
LAST-MODIFIED:20221207T163535Z
LOCATION:Fine 314 and Remote Access
SUMMARY:Joint IAS/Princeton University Symplectic Geometry Seminar
URL:https://www.ias.edu/math/events/joint-iasprinceton-university-symplecti
c-geometry-seminar-205
END:VEVENT
BEGIN:VEVENT
UID:64366633-6336-4234-b235-386264356663
DTSTAMP:20230202T191213Z
CREATED:20221116T182140Z
DESCRIPTION:Speakers: Jacob Lurie\n\nAffiliation: School of Mathematics
DTSTART:20230313T200000Z
DTEND:20230313T210000Z
LAST-MODIFIED:20230106T191037Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:IAS/Princeton Arithmetic Geometry Seminar
URL:https://www.ias.edu/math/events/iasprinceton-arithmetic-geometry-semina
r-1
END:VEVENT
BEGIN:VEVENT
UID:35333736-3933-4435-b066-376436373561
DTSTAMP:20230202T191213Z
CREATED:20221209T183422Z
DESCRIPTION:
DTSTART:20230314T143000Z
DTEND:20230314T163000Z
LAST-MODIFIED:20221209T183535Z
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-531
END:VEVENT
BEGIN:VEVENT
UID:35333437-3130-4162-a431-363230366337
DTSTAMP:20230202T191213Z
CREATED:20221116T193159Z
DESCRIPTION:Topic: TBD
DTSTART:20230315T190000Z
DTEND:20230315T200000Z
LAST-MODIFIED:20230119T161917Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Analysis and Mathematical Physics
URL:https://www.ias.edu/math/events/analysis-and-mathematical-physics-9
END:VEVENT
BEGIN:VEVENT
UID:62663838-3965-4063-b366-643266346131
DTSTAMP:20230202T191213Z
CREATED:20230119T220523Z
DESCRIPTION:Topic: TBA
DTSTART:20230315T220000Z
DTEND:20230316T000000Z
LAST-MODIFIED:20230119T220552Z
LOCATION:Birch Garden\, Simons Hall
SUMMARY:Mathematical Conversations
URL:https://www.ias.edu/math/events/mathematical-conversations-255
END:VEVENT
BEGIN:VEVENT
UID:64643532-6266-4437-a232-356332346466
DTSTAMP:20230202T191213Z
CREATED:20221114T203442Z
DESCRIPTION:
DTSTART:20230316T203000Z
DTEND:20230316T213000Z
LAST-MODIFIED:20221114T203506Z
LOCATION:Princeton University\, Fine Hall 214
SUMMARY:Joint IAS/PU Number Theory Seminar
URL:https://www.ias.edu/math/events/joint-iaspu-number-theory-seminar-15
END:VEVENT
BEGIN:VEVENT
UID:38636634-6563-4266-b830-386537383166
DTSTAMP:20230202T191213Z
CREATED:20221205T204351Z
DESCRIPTION:Topic: TBA
DTSTART:20230317T131500Z
DTEND:20230317T144500Z
LAST-MODIFIED:20221205T204419Z
LOCATION:Remote Access
SUMMARY:Joint IAS/Princeton/Montreal/Paris/Tel-Aviv Symplectic Geometry Zoo
minar
URL:https://www.ias.edu/math/events/joint-iasprincetonmontrealparistel-aviv
-symplectic-geometry-zoominar-112
END:VEVENT
BEGIN:VEVENT
UID:64353338-3264-4166-b039-636339313632
DTSTAMP:20230202T191213Z
CREATED:20221116T194516Z
DESCRIPTION:Topic: TBD \n\nSpeakers: Paul Bourgade\, Bálint Virág\n\nAffili
ation: New York University\; University of Toronto
DTSTART:20230317T141500Z
DTEND:20230317T161500Z
LAST-MODIFIED:20230201T192316Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Probability Seminar
URL:https://www.ias.edu/math/events/probability-seminar-21
END:VEVENT
BEGIN:VEVENT
UID:64363137-6665-4939-b965-656638626430
DTSTAMP:20230202T191213Z
CREATED:20221014T133527Z
DESCRIPTION:Topic: TBD
DTSTART:20230317T170000Z
DTEND:20230317T193000Z
LAST-MODIFIED:20230127T143108Z
LOCATION:Rubenstein Commons | Meeting Room 5
SUMMARY:Milnor Conjecture Learning Seminar
URL:https://www.ias.edu/math/events/milnor-conjecture-learning-seminar-11
END:VEVENT
BEGIN:VEVENT
UID:31346238-3165-4534-b633-303234343866
DTSTAMP:20230202T191213Z
CREATED:20221209T181839Z
DESCRIPTION:Speakers: Mathias Schacht\n\nAffiliation: Universität Hamburg
DTSTART:20230320T151500Z
DTEND:20230320T161500Z
LAST-MODIFIED:20230105T135613Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Computer Science/Discrete Mathematics Seminar I
URL:https://www.ias.edu/math/events/computer-sciencediscrete-mathematics-se
minar-i-536
END:VEVENT
BEGIN:VEVENT
UID:39356262-3466-4938-b262-323539666363
DTSTAMP:20230202T191213Z
CREATED:20221114T181914Z
DESCRIPTION:Topic: TBD\n\nSpeakers: Sky Yang Cao\n\nAffiliation: Member\, S
chool of Mathematics
DTSTART:20230320T180000Z
DTEND:20230320T190000Z
LAST-MODIFIED:20221114T182005Z
LOCATION:Simonyi Hall 101 and Remote Access - see Zoom link below
SUMMARY:Members' Colloquium
URL:https://www.ias.edu/math/events/members-colloquium-48
END:VEVENT
BEGIN:VEVENT
UID:62343631-3133-4131-a163-373066386465
DTSTAMP:20230202T191213Z
CREATED:20221206T175429Z
DESCRIPTION:Speakers: Yunqing Tang\n\nAffiliation: University of California
\, Berkeley
DTSTART:20230320T200000Z
DTEND:20230320T213000Z
LAST-MODIFIED:20230109T163239Z
LOCATION:Princeton University\, Fine Hall 314
SUMMARY:Joint IAS/Princeton Arithmetic Geometry Seminar
URL:https://www.ias.edu/math/events/joint-iasprinceton-arithmetic-geometry-
seminar-2
END:VEVENT
BEGIN:VEVENT
UID:63363063-3164-4831-a430-326235353462
DTSTAMP:20230202T191213Z
CREATED:20221207T184119Z
DESCRIPTION:Speakers: Morgan Weiler\n\nAffiliation: Cornell University
DTSTART:20230320T200000Z
DTEND:20230320T213000Z
LAST-MODIFIED:20221207T190913Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Joint IAS/Princeton University Symplectic Geometry Seminar
URL:https://www.ias.edu/math/events/joint-iasprinceton-university-symplecti
c-geometry-seminar-211
END:VEVENT
BEGIN:VEVENT
UID:63323337-3638-4137-b963-323732396236
DTSTAMP:20230202T191213Z
CREATED:20221209T183442Z
DESCRIPTION:
DTSTART:20230321T143000Z
DTEND:20230321T163000Z
LAST-MODIFIED:20221209T183508Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Computer Science/Discrete Mathematics Seminar II
URL:https://www.ias.edu/math/events/computer-sciencediscrete-mathematics-se
minar-ii-530
END:VEVENT
BEGIN:VEVENT
UID:33396465-3936-4335-b337-313830666661
DTSTAMP:20230202T191213Z
CREATED:20221116T193225Z
DESCRIPTION:Topic: TBD \n\nSpeakers: Michele Coti Zelati\n\nAffiliation: Im
perial College London
DTSTART:20230322T190000Z
DTEND:20230322T200000Z
LAST-MODIFIED:20230119T162019Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Analysis and Mathematical Physics
URL:https://www.ias.edu/math/events/analysis-and-mathematical-physics-10
END:VEVENT
BEGIN:VEVENT
UID:66323734-3230-4539-a638-653263656638
DTSTAMP:20230202T191213Z
CREATED:20230119T220601Z
DESCRIPTION:Topic: TBA
DTSTART:20230322T220000Z
DTEND:20230323T000000Z
LAST-MODIFIED:20230119T220631Z
LOCATION:Birch Garden\, Simons Hall
SUMMARY:Mathematical Conversations
URL:https://www.ias.edu/math/events/mathematical-conversations-256
END:VEVENT
BEGIN:VEVENT
UID:61666334-6430-4133-b062-353261323537
DTSTAMP:20230202T191213Z
CREATED:20221114T204206Z
DESCRIPTION:
DTSTART:20230323T203000Z
DTEND:20230323T213000Z
LAST-MODIFIED:20221114T204236Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Joint IAS/PU Number Theory Seminar
URL:https://www.ias.edu/math/events/joint-iaspu-number-theory-seminar-21
END:VEVENT
BEGIN:VEVENT
UID:37633564-6533-4230-a462-346131636139
DTSTAMP:20230202T191213Z
CREATED:20221205T204429Z
DESCRIPTION:Topic: TBA
DTSTART:20230324T131500Z
DTEND:20230324T144500Z
LAST-MODIFIED:20221205T204657Z
LOCATION:Remote Access
SUMMARY:Joint IAS/Princeton/Montreal/Paris/Tel-Aviv Symplectic Geometry Zoo
minar
URL:https://www.ias.edu/math/events/joint-iasprincetonmontrealparistel-aviv
-symplectic-geometry-zoominar-114
END:VEVENT
BEGIN:VEVENT
UID:36313335-3038-4634-a631-356632383662
DTSTAMP:20230202T191213Z
CREATED:20221116T194540Z
DESCRIPTION:Speakers: Juhan Aru\n\nAffiliation: École Polytechnique Fédéral
e de Lausanne
DTSTART:20230324T151500Z
DTEND:20230324T161500Z
LAST-MODIFIED:20230127T194718Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Probability Seminar
URL:https://www.ias.edu/math/events/probability-seminar-22
END:VEVENT
BEGIN:VEVENT
UID:62363165-3932-4465-b630-666534626639
DTSTAMP:20230202T191213Z
CREATED:20221014T133559Z
DESCRIPTION:Topic: TBD
DTSTART:20230324T170000Z
DTEND:20230324T193000Z
LAST-MODIFIED:20230127T143741Z
LOCATION:Rubenstein Commons | Meeting Room 5
SUMMARY:Milnor Conjecture Learning Seminar
URL:https://www.ias.edu/math/events/milnor-conjecture-learning-seminar-12
END:VEVENT
BEGIN:VEVENT
UID:33666234-3863-4266-b834-363039666362
DTSTAMP:20230202T191213Z
CREATED:20220712T181242Z
DESCRIPTION:Topic: Connes Embedding Problem\, Kirchberg's Conjecture and Ts
irelson's Problem\n\nSpeakers: Thomas Vidick\n\nAffiliation: California In
stitute of Technology\n\nThe three problems referred to in the title origi
nate in the theory of\nvon Neumann algebras\, C* algebras\, and quantum in
formation theory\nrespectively. Each of them has been a deep long-standing
open problem\nin its respective area. Surprisingly\, the three problems a
re\nequivalent.\n\nRecently we gave a negative answer to all three problem
s by taking an\nunexpected path -- through complexity theory.\n\nThe goal
of these three lectures is to give a flavor of the resolution\nof these th
ree problems\, for a mathematical audience. In the first\nlecture I will i
ntroduce the problems described in the title and\nexplain their equivalenc
e. I will then formulate the approach\, which\ngoes through the careful de
sign of families of linear functionals\nacting on 'quantum correlation spa
ces' and derived from the theory of\nnonlocal games in quantum information
theory.
DTSTART:20230327T150000Z
DTEND:20230327T160000Z
LAST-MODIFIED:20230109T194102Z
LOCATION:Simonyi Hall 101 and Remote Access - see Zoom link below
SUMMARY:Marston Morse Lectures
URL:https://www.ias.edu/math/events/marston-morse-lectures-103
END:VEVENT
BEGIN:VEVENT
UID:66663733-6432-4530-a336-663662366463
DTSTAMP:20230202T191213Z
CREATED:20230104T133539Z
DESCRIPTION:Topic: TBA\n\nSpeakers: Mingjia Zhang\n\nAffiliation: Bonn Univ
ersity
DTSTART:20230327T200000Z
DTEND:20230327T220000Z
LAST-MODIFIED:20230109T163458Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Joint PU/IAS Arithmetic Geometry
URL:https://www.ias.edu/math/events/joint-puias-arithmetic-geometry
END:VEVENT
BEGIN:VEVENT
UID:64353766-6432-4637-a433-313231366665
DTSTAMP:20230202T191213Z
CREATED:20221207T163552Z
DESCRIPTION:Topic: TBA
DTSTART:20230327T200000Z
DTEND:20230327T213000Z
LAST-MODIFIED:20221207T163712Z
LOCATION:Fine 314 and Remote Access
SUMMARY:Joint IAS/Princeton University Symplectic Geometry Seminar
URL:https://www.ias.edu/math/events/joint-iasprinceton-university-symplecti
c-geometry-seminar-206
END:VEVENT
BEGIN:VEVENT
UID:63366534-3563-4662-a238-383832656266
DTSTAMP:20230202T191213Z
CREATED:20221209T183624Z
DESCRIPTION:Speakers: Dor Yosef Minzer\n\nAffiliation: Massachusetts Instit
ute of Technology
DTSTART:20230328T143000Z
DTEND:20230328T163000Z
LAST-MODIFIED:20230105T135733Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Computer Science/Discrete Mathematics Seminar II
URL:https://www.ias.edu/math/events/computer-sciencediscrete-mathematics-se
minar-ii-532
END:VEVENT
BEGIN:VEVENT
UID:34313064-3530-4533-b033-303366643563
DTSTAMP:20230202T191213Z
CREATED:20221115T194439Z
DESCRIPTION:Topic: From Nonlocal Games to Undecidability\n\nSpeakers: Thoma
s Vidick\n\nAffiliation: California Institute of Technology\n\nIn this lec
ture I will present basic elements of the theory of\nnonlocal games from q
uantum information theory and give some examples.\nI will then introduce t
he idea of 'compressing' the complexity of\nnonlocal games\, and show how
the right form of compression leads to\nundecidability of a natural optimi
zation problem associated with the\ngames. Using the results from the firs
t lecture\, the undecidability\nresult will imply a negative answer to Tsi
relson's problem and its\nequivalent problems in operator algebras.
DTSTART:20230329T150000Z
DTEND:20230329T160000Z
LAST-MODIFIED:20230109T194338Z
LOCATION:Simonyi Hall 101 and Remote Access - see Zoom link below
SUMMARY:Marston Morse Lectures
URL:https://www.ias.edu/math/events/marston-morse-lectures-104
END:VEVENT
BEGIN:VEVENT
UID:30626164-3163-4435-b032-333438353939
DTSTAMP:20230202T191213Z
CREATED:20221116T193304Z
DESCRIPTION:Topic: TBD
DTSTART:20230329T190000Z
DTEND:20230329T200000Z
LAST-MODIFIED:20230119T162059Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Analysis and Mathematical Physics
URL:https://www.ias.edu/math/events/analysis-and-mathematical-physics-11
END:VEVENT
BEGIN:VEVENT
UID:36613037-3332-4637-b961-643066373565
DTSTAMP:20230202T191213Z
CREATED:20230119T220643Z
DESCRIPTION:Topic: TBA
DTSTART:20230329T220000Z
DTEND:20230330T000000Z
LAST-MODIFIED:20230119T220711Z
LOCATION:Birch Garden\, Simons Hall
SUMMARY:Mathematical Conversations
URL:https://www.ias.edu/math/events/mathematical-conversations-257
END:VEVENT
BEGIN:VEVENT
UID:37653336-3531-4266-a265-626262353238
DTSTAMP:20230202T191213Z
CREATED:20221114T203524Z
DESCRIPTION:
DTSTART:20230330T203000Z
DTEND:20230330T213000Z
LAST-MODIFIED:20221114T203548Z
LOCATION:Princeton University\, Fine Hall 214
SUMMARY:Joint IAS/PU Number Theory Seminar
URL:https://www.ias.edu/math/events/joint-iaspu-number-theory-seminar-16
END:VEVENT
BEGIN:VEVENT
UID:66326139-6635-4633-a534-636365323536
DTSTAMP:20230202T191213Z
CREATED:20221205T204507Z
DESCRIPTION:Topic: TBA
DTSTART:20230331T131500Z
DTEND:20230331T144500Z
LAST-MODIFIED:20221205T204544Z
LOCATION:Remote Access
SUMMARY:Joint IAS/Princeton/Montreal/Paris/Tel-Aviv Symplectic Geometry Zoo
minar
URL:https://www.ias.edu/math/events/joint-iasprincetonmontrealparistel-aviv
-symplectic-geometry-zoominar-113
END:VEVENT
BEGIN:VEVENT
UID:32343839-3438-4834-a333-303233333963
DTSTAMP:20230202T191213Z
CREATED:20221115T194532Z
DESCRIPTION:Topic: Efficient Stability for the Weyl-Heisenberg Group\n\nSpe
akers: Thomas Vidick\n\nAffiliation: California Institute of Technology\n
\nThe question of stability of approximate group homomorphisms was first\n
formulated by Ulam in the 1940s. One of the most famous results in\nthis a
rea is Kazhdan's 1982 result on stability of approximate unitary\nrepresen
tations of an amenable group\, when approximation is measured\nusing the o
perator norm. More recently\, motivated in part by the study\nof group sof
icity and hyperlinearity\, the study of stability has been\npursued for an
increasing variety of notions of approximation.\n\nOne of the key technic
al ingredients in the resolution of Tsirelson's\nproblem is a notion of 'e
fficient' approximate stability\, and its\ndemonstration for a specific fa
mily of finite non-abelian groups\, the\nWeyl-Heisenberg groups. In this (
mostly self-contained) lecture I will\nformulate the efficient stability r
esult\, give some proof ideas\, and\nexplain its use for the compression p
rocedure introduced in the second\nlecture.
DTSTART:20230331T150000Z
DTEND:20230331T160000Z
LAST-MODIFIED:20230109T194634Z
LOCATION:Simonyi Hall 101 and Remote Access - see Zoom link below
SUMMARY:Marston Morse Lectures
URL:https://www.ias.edu/math/events/marston-morse-lectures-105
END:VEVENT
BEGIN:VEVENT
UID:63336336-3734-4166-a564-333061633936
DTSTAMP:20230202T191213Z
CREATED:20230123T163624Z
DESCRIPTION:
DTSTART:20230331T151500Z
DTEND:20230331T161500Z
LAST-MODIFIED:20230123T163746Z
LOCATION:West Lecture Hall and Remote Access
SUMMARY:Probability Seminar
URL:https://www.ias.edu/math/events/probability-seminar-23
END:VEVENT
BEGIN:VEVENT
UID:32313435-6434-4461-b766-373537616234
DTSTAMP:20230202T191213Z
CREATED:20221014T133630Z
DESCRIPTION:Topic: TBD
DTSTART:20230331T170000Z
DTEND:20230331T193000Z
LAST-MODIFIED:20230127T143944Z
LOCATION:Rubenstein Commons | Meeting Room 5
SUMMARY:Milnor Conjecture Learning Seminar
URL:https://www.ias.edu/math/events/milnor-conjecture-learning-seminar-13
END:VEVENT
BEGIN:VEVENT
UID:31313737-3636-4437-b037-623337396562
DTSTAMP:20230202T191213Z
CREATED:20221209T181907Z
DESCRIPTION:Speakers: Nina Kamčev\n\nAffiliation: University of Zagreb
DTSTART:20230403T151500Z
DTEND:20230403T161500Z
LAST-MODIFIED:20230124T202341Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Computer Science/Discrete Mathematics Seminar I
URL:https://www.ias.edu/math/events/computer-sciencediscrete-mathematics-se
minar-i-537
END:VEVENT
BEGIN:VEVENT
UID:36653762-3965-4939-b936-366263366631
DTSTAMP:20230202T191213Z
CREATED:20221114T182144Z
DESCRIPTION:Topic: TBD\n\nSpeakers: Alexandre de Faveri\n\nAffiliation: Mem
ber\, School of Mathematics
DTSTART:20230403T180000Z
DTEND:20230403T190000Z
LAST-MODIFIED:20221114T182419Z
LOCATION:Simonyi Hall 101 and Remote Access - see Zoom link below
SUMMARY:Members' Colloquium
URL:https://www.ias.edu/math/events/members-colloquium-50
END:VEVENT
BEGIN:VEVENT
UID:39396639-3439-4433-b934-373734326161
DTSTAMP:20230202T191213Z
CREATED:20221207T184500Z
DESCRIPTION:Speakers: Michael Hutchings\n\nAffiliation: University of Calif
ornia\, Berkeley
DTSTART:20230403T200000Z
DTEND:20230403T213000Z
LAST-MODIFIED:20221207T184931Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Joint IAS/Princeton University Symplectic Geometry Seminar
URL:https://www.ias.edu/math/events/joint-iasprinceton-university-symplecti
c-geometry-seminar-212
END:VEVENT
BEGIN:VEVENT
UID:65623266-3536-4431-b139-343638383965
DTSTAMP:20230202T191213Z
CREATED:20221206T175517Z
DESCRIPTION:Speakers: Zhiwei Yun\n\nAffiliation: Massachusetts Institute of
Technology
DTSTART:20230403T200000Z
DTEND:20230403T213000Z
LAST-MODIFIED:20230109T163619Z
LOCATION:Princeton University\, Fine Hall 314
SUMMARY:Joint IAS/Princeton Arithmetic Geometry Seminar
URL:https://www.ias.edu/math/events/joint-iasprinceton-arithmetic-geometry-
seminar-3
END:VEVENT
BEGIN:VEVENT
UID:32393034-3638-4138-b936-346432353365
DTSTAMP:20230202T191213Z
CREATED:20221209T183650Z
DESCRIPTION:
DTSTART:20230404T143000Z
DTEND:20230404T163000Z
LAST-MODIFIED:20221209T183706Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Computer Science/Discrete Mathematics Seminar II
URL:https://www.ias.edu/math/events/computer-sciencediscrete-mathematics-se
minar-ii-533
END:VEVENT
BEGIN:VEVENT
UID:34343039-3564-4331-b065-383766626662
DTSTAMP:20230202T191213Z
CREATED:20221116T193331Z
DESCRIPTION:Topic: TBD \n\nSpeakers: Hans Lindblad\n\nAffiliation: Johns Ho
pkins University\; Member\, School of Mathematics
DTSTART:20230405T190000Z
DTEND:20230405T200000Z
LAST-MODIFIED:20230119T162216Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Analysis and Mathematical Physics
URL:https://www.ias.edu/math/events/analysis-and-mathematical-physics-12
END:VEVENT
BEGIN:VEVENT
UID:38303437-6561-4430-b338-323339626664
DTSTAMP:20230202T191213Z
CREATED:20230119T220718Z
DESCRIPTION:Topic: TBA
DTSTART:20230405T220000Z
DTEND:20230406T000000Z
LAST-MODIFIED:20230119T220748Z
LOCATION:Birch Garden\, Simons Hall
SUMMARY:Mathematical Conversations
URL:https://www.ias.edu/math/events/mathematical-conversations-258
END:VEVENT
BEGIN:VEVENT
UID:31303139-3438-4162-b130-653834653337
DTSTAMP:20230202T191213Z
CREATED:20221114T204251Z
DESCRIPTION:
DTSTART:20230406T203000Z
DTEND:20230406T213000Z
LAST-MODIFIED:20221114T204320Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Joint IAS/PU Number Theory Seminar
URL:https://www.ias.edu/math/events/joint-iaspu-number-theory-seminar-22
END:VEVENT
BEGIN:VEVENT
UID:62663864-3763-4437-b933-363261666135
DTSTAMP:20230202T191213Z
CREATED:20221116T194632Z
DESCRIPTION:Topic: TBD \n\nSpeakers: Hariharan Narayanan\n\nAffiliation: Ta
ta Institute of Fundamental Research
DTSTART:20230407T151500Z
DTEND:20230407T161500Z
LAST-MODIFIED:20230109T164036Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Probability Seminar
URL:https://www.ias.edu/math/events/probability-seminar-19
END:VEVENT
BEGIN:VEVENT
UID:61383533-3031-4435-a562-343832363466
DTSTAMP:20230202T191213Z
CREATED:20221014T133716Z
DESCRIPTION:Topic: TBD
DTSTART:20230407T170000Z
DTEND:20230407T193000Z
LAST-MODIFIED:20230127T144049Z
LOCATION:Rubenstein Commons | Meeting Room 5
SUMMARY:Milnor Conjecture Learning Seminar
URL:https://www.ias.edu/math/events/milnor-conjecture-learning-seminar-14
END:VEVENT
BEGIN:VEVENT
UID:39623733-6436-4432-b066-633165393563
DTSTAMP:20230202T191213Z
CREATED:20221209T182100Z
DESCRIPTION:
DTSTART:20230410T151500Z
DTEND:20230410T161500Z
LAST-MODIFIED:20221209T182126Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Computer Science/Discrete Mathematics Seminar I
URL:https://www.ias.edu/math/events/computer-sciencediscrete-mathematics-se
minar-i-538
END:VEVENT
BEGIN:VEVENT
UID:61663766-3330-4561-a638-613964336536
DTSTAMP:20230202T191213Z
CREATED:20221114T182716Z
DESCRIPTION:Topic: TBD\n\nSpeakers: Oishee Banerjee\n\nAffiliation: Member\
, School of Mathematics
DTSTART:20230410T180000Z
DTEND:20230410T190000Z
LAST-MODIFIED:20230126T135313Z
LOCATION:Simonyi Hall 101 and Remote Access - see Zoom link below
SUMMARY:Members' Colloquium
URL:https://www.ias.edu/math/events/members-colloquium-49
END:VEVENT
BEGIN:VEVENT
UID:61376163-3665-4363-a138-306534623234
DTSTAMP:20230202T191213Z
CREATED:20221116T182213Z
DESCRIPTION:Speakers: Teruhisa Koshikawa
DTSTART:20230410T200000Z
DTEND:20230410T210000Z
LAST-MODIFIED:20230109T165601Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:IAS/Princeton Arithmetic Geometry Seminar
URL:https://www.ias.edu/math/events/iasprinceton-arithmetic-geometry-semina
r-2
END:VEVENT
BEGIN:VEVENT
UID:39656566-3732-4362-a137-373263646133
DTSTAMP:20230202T191213Z
CREATED:20221207T163721Z
DESCRIPTION:Topic: TBA\n\nSpeakers: Daniel Anthony Cristofaro-Gardiner\n\nA
ffiliation: University of Maryland\; von Neumann Fellow\, School of Mathem
atics
DTSTART:20230410T200000Z
DTEND:20230410T213000Z
LAST-MODIFIED:20221207T183005Z
LOCATION:Fine 314 and Remote Access
SUMMARY:Joint IAS/Princeton University Symplectic Geometry Seminar
URL:https://www.ias.edu/math/events/joint-iasprinceton-university-symplecti
c-geometry-seminar-207
END:VEVENT
BEGIN:VEVENT
UID:66623263-6535-4534-a264-323232383136
DTSTAMP:20230202T191213Z
CREATED:20221209T183715Z
DESCRIPTION:Speakers: Assaf Naor\n\nAffiliation: Princeton University
DTSTART:20230411T143000Z
DTEND:20230411T163000Z
LAST-MODIFIED:20230105T140004Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Computer Science/Discrete Mathematics Seminar II
URL:https://www.ias.edu/math/events/computer-sciencediscrete-mathematics-se
minar-ii-534
END:VEVENT
BEGIN:VEVENT
UID:64303934-3530-4435-b763-363664303638
DTSTAMP:20230202T191213Z
CREATED:20221116T193358Z
DESCRIPTION:Topic: TBD \n\nSpeakers: Jean Dolbeault\n\nAffiliation: Univers
ité Paris Dauphine
DTSTART:20230412T190000Z
DTEND:20230412T200000Z
LAST-MODIFIED:20230119T162313Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Analysis and Mathematical Physics
URL:https://www.ias.edu/math/events/analysis-and-mathematical-physics-1
END:VEVENT
BEGIN:VEVENT
UID:66623536-3062-4338-a630-663363396265
DTSTAMP:20230202T191213Z
CREATED:20230119T220755Z
DESCRIPTION:Topic: TBA
DTSTART:20230412T220000Z
DTEND:20230413T000000Z
LAST-MODIFIED:20230119T220823Z
LOCATION:Birch Garden\, Simons Hall
SUMMARY:Mathematical Conversations
URL:https://www.ias.edu/math/events/mathematical-conversations-259
END:VEVENT
BEGIN:VEVENT
UID:63306232-3432-4430-a238-656161656564
DTSTAMP:20230202T191213Z
CREATED:20221114T203610Z
DESCRIPTION:
DTSTART:20230413T203000Z
DTEND:20230413T213000Z
LAST-MODIFIED:20221114T203641Z
LOCATION:Princeton University\, Fine Hall 214
SUMMARY:Joint IAS/PU Number Theory Seminar
URL:https://www.ias.edu/math/events/joint-iaspu-number-theory-seminar-17
END:VEVENT
BEGIN:VEVENT
UID:34386166-3033-4565-b732-663665373833
DTSTAMP:20230202T191213Z
CREATED:20221205T205508Z
DESCRIPTION:Topic: TBA
DTSTART:20230414T131500Z
DTEND:20230414T144500Z
LAST-MODIFIED:20221205T205556Z
LOCATION:Remote Access
SUMMARY:Joint IAS/Princeton/Montreal/Paris/Tel-Aviv Symplectic Geometry Zoo
minar
URL:https://www.ias.edu/math/events/joint-iasprincetonmontrealparistel-aviv
-symplectic-geometry-zoominar-115
END:VEVENT
BEGIN:VEVENT
UID:34613831-6236-4935-b539-313230306130
DTSTAMP:20230202T191213Z
CREATED:20221116T194656Z
DESCRIPTION:Speakers: Tom Hutchcroft\n\nAffiliation: California Institute o
f Technology
DTSTART:20230414T151500Z
DTEND:20230414T161500Z
LAST-MODIFIED:20230127T194913Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Probability Seminar
URL:https://www.ias.edu/math/events/probability-seminar-24
END:VEVENT
BEGIN:VEVENT
UID:30386139-3639-4065-b164-373035356164
DTSTAMP:20230202T191213Z
CREATED:20221014T133752Z
DESCRIPTION:Topic: TBD
DTSTART:20230414T170000Z
DTEND:20230414T193000Z
LAST-MODIFIED:20230127T144148Z
LOCATION:Rubenstein Commons | Meeting Room 5
SUMMARY:Milnor Conjecture Learning Seminar
URL:https://www.ias.edu/math/events/milnor-conjecture-learning-seminar-15
END:VEVENT
BEGIN:VEVENT
UID:65643862-6337-4662-b631-613531306531
DTSTAMP:20230202T191213Z
CREATED:20200110T181909Z
DESCRIPTION:
DTSTART:20230414T220000Z
DTEND:20230414T220000Z
LAST-MODIFIED:20210104T030312Z
LOCATION:
SUMMARY:IAS School of Mathematics Term II Ends
URL:https://www.ias.edu/math/events/ias-school-mathematics-term-ii-ends-1
END:VEVENT
BEGIN:VEVENT
UID:63346435-3833-4165-b936-636135343937
DTSTAMP:20230202T191213Z
CREATED:20230105T142917Z
DESCRIPTION:Speakers: Noga Alon\n\nAffiliation: Princeton University
DTSTART:20230417T151500Z
DTEND:20230417T161500Z
LAST-MODIFIED:20230105T142948Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Computer Science/Discrete Mathematics Seminar I
URL:https://www.ias.edu/math/events/computer-sciencediscrete-mathematics-se
minar-i-541
END:VEVENT
BEGIN:VEVENT
UID:61306433-6334-4230-b763-626230653936
DTSTAMP:20230202T191213Z
CREATED:20221114T182829Z
DESCRIPTION:Topic: TBD
DTSTART:20230417T180000Z
DTEND:20230417T190000Z
LAST-MODIFIED:20221114T182853Z
LOCATION:Simonyi Hall 101 and Remote Access - see Zoom link below
SUMMARY:Members' Colloquium
URL:https://www.ias.edu/math/events/members-colloquium-52
END:VEVENT
BEGIN:VEVENT
UID:31353833-3631-4834-b534-323434346133
DTSTAMP:20230202T191213Z
CREATED:20221207T191405Z
DESCRIPTION:Speakers: Julian Chaidez\n\nAffiliation: Visitor\, School of Ma
thematics
DTSTART:20230417T200000Z
DTEND:20230417T213000Z
LAST-MODIFIED:20221207T191834Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Joint IAS/Princeton University Symplectic Geometry Seminar
URL:https://www.ias.edu/math/events/joint-iasprinceton-university-symplecti
c-geometry-seminar-214
END:VEVENT
BEGIN:VEVENT
UID:38616262-6363-4034-b731-643438623834
DTSTAMP:20230202T191213Z
CREATED:20230105T142617Z
DESCRIPTION:
DTSTART:20230418T143000Z
DTEND:20230418T163000Z
LAST-MODIFIED:20230105T142713Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Computer Science/Discrete Mathematics Seminar II
URL:https://www.ias.edu/math/events/computer-sciencediscrete-mathematics-se
minar-ii-536
END:VEVENT
BEGIN:VEVENT
UID:62623634-3432-4364-b731-333539363238
DTSTAMP:20230202T191213Z
CREATED:20221116T193424Z
DESCRIPTION:Topic: TBD \n\nSpeakers: Andrea Nahmod\n\nAffiliation: Universi
ty of Massachusetts\, Amherst
DTSTART:20230419T190000Z
DTEND:20230419T200000Z
LAST-MODIFIED:20230119T162356Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Analysis and Mathematical Physics
URL:https://www.ias.edu/math/events/analysis-and-mathematical-physics-14
END:VEVENT
BEGIN:VEVENT
UID:32646631-3938-4661-a537-373562613539
DTSTAMP:20230202T191213Z
CREATED:20230119T220830Z
DESCRIPTION:Topic: TBA
DTSTART:20230419T220000Z
DTEND:20230420T000000Z
LAST-MODIFIED:20230119T220858Z
LOCATION:Birch Garden\, Simons Hall
SUMMARY:Mathematical Conversations
URL:https://www.ias.edu/math/events/mathematical-conversations-260
END:VEVENT
BEGIN:VEVENT
UID:66386436-3061-4635-a431-353531616266
DTSTAMP:20230202T191213Z
CREATED:20230123T152816Z
DESCRIPTION:
DTSTART:20230420T203000Z
DTEND:20230420T213000Z
LAST-MODIFIED:20230123T152901Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Joint IAS/PU Number Theory Seminar
URL:https://www.ias.edu/math/events/joint-iaspu-number-theory-seminar-23
END:VEVENT
BEGIN:VEVENT
UID:36636363-3439-4266-a336-386334326165
DTSTAMP:20230202T191213Z
CREATED:20221205T205633Z
DESCRIPTION:Topic: TBA
DTSTART:20230421T131500Z
DTEND:20230421T144500Z
LAST-MODIFIED:20221205T205701Z
LOCATION:Remote Access
SUMMARY:Joint IAS/Princeton/Montreal/Paris/Tel-Aviv Symplectic Geometry Zoo
minar
URL:https://www.ias.edu/math/events/joint-iasprincetonmontrealparistel-aviv
-symplectic-geometry-zoominar-116
END:VEVENT
BEGIN:VEVENT
UID:38383564-3139-4732-b637-323961386434
DTSTAMP:20230202T191213Z
CREATED:20221116T194718Z
DESCRIPTION:Topic: TBD \n\nAffiliation: TBD
DTSTART:20230421T151500Z
DTEND:20230421T161500Z
LAST-MODIFIED:20221116T194730Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Probability Seminar
URL:https://www.ias.edu/math/events/probability-seminar-26
END:VEVENT
BEGIN:VEVENT
UID:34353861-3163-4665-b336-356234643163
DTSTAMP:20230202T191213Z
CREATED:20221014T133827Z
DESCRIPTION:Topic: TBD
DTSTART:20230421T170000Z
DTEND:20230421T193000Z
LAST-MODIFIED:20230127T144240Z
LOCATION:Rubenstein Commons | Meeting Room 5
SUMMARY:Milnor Conjecture Learning Seminar
URL:https://www.ias.edu/math/events/milnor-conjecture-learning-seminar-16
END:VEVENT
BEGIN:VEVENT
UID:34363437-3066-4630-b531-393563303831
DTSTAMP:20230202T191213Z
CREATED:20230105T143018Z
DESCRIPTION:
DTSTART:20230424T151500Z
DTEND:20230424T161500Z
LAST-MODIFIED:20230105T143037Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Computer Science/Discrete Mathematics Seminar I
URL:https://www.ias.edu/math/events/computer-sciencediscrete-mathematics-se
minar-i-542
END:VEVENT
BEGIN:VEVENT
UID:32363438-3165-4331-a631-643032303964
DTSTAMP:20230202T191213Z
CREATED:20221207T192054Z
DESCRIPTION:Speakers: Julian Chaidez\n\nAffiliation: Visitor\, School of Ma
thematics
DTSTART:20230424T200000Z
DTEND:20230424T213000Z
LAST-MODIFIED:20221207T192126Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Joint IAS/Princeton University Symplectic Geometry Seminar
URL:https://www.ias.edu/math/events/joint-iasprinceton-university-symplecti
c-geometry-seminar-215
END:VEVENT
BEGIN:VEVENT
UID:33343332-6239-4464-b933-663465653337
DTSTAMP:20230202T191213Z
CREATED:20230105T182955Z
DESCRIPTION:Speakers: Arthur-Cesar Le Bras\n\nAffiliation: Galilee Institut
e\, University of Paris
DTSTART:20230424T200000Z
DTEND:20230424T220000Z
LAST-MODIFIED:20230109T180914Z
LOCATION:Rubenstein Commons | Meeting Room 5
SUMMARY:Joint IAS/Princeton University Arithmetic Geometry Seminar
URL:https://www.ias.edu/math/events/joint-iasprinceton-university-arithmeti
c-geometry-seminar
END:VEVENT
BEGIN:VEVENT
UID:37323732-3939-4531-b533-363963396364
DTSTAMP:20230202T191213Z
CREATED:20230105T142741Z
DESCRIPTION:Speakers: Nikhil Bansal\n\nAffiliation: University of Michigan
DTSTART:20230425T143000Z
DTEND:20230425T163000Z
LAST-MODIFIED:20230125T133049Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Computer Science/Discrete Mathematics Seminar II
URL:https://www.ias.edu/math/events/computer-sciencediscrete-mathematics-se
minar-ii-537
END:VEVENT
BEGIN:VEVENT
UID:32653837-3063-4037-b261-653863626333
DTSTAMP:20230202T191213Z
CREATED:20221213T151335Z
DESCRIPTION:Topic: TBD \n\nSpeakers: Zoe Wyatt\n\nAffiliation: King's Colle
ge London
DTSTART:20230426T190000Z
DTEND:20230426T200000Z
LAST-MODIFIED:20230119T162437Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Analysis and Mathematical Physics
URL:https://www.ias.edu/math/events/analysis-and-mathematical-physics-7
END:VEVENT
BEGIN:VEVENT
UID:30313065-3237-4465-b363-663838623433
DTSTAMP:20230202T191213Z
CREATED:20230123T153653Z
DESCRIPTION:
DTSTART:20230427T203000Z
DTEND:20230427T213000Z
LAST-MODIFIED:20230123T153733Z
LOCATION:Princeton University\, Fine Hall 214
SUMMARY:Joint IAS/PU Number Theory Seminar
URL:https://www.ias.edu/math/events/joint-iaspu-number-theory-seminar-26
END:VEVENT
BEGIN:VEVENT
UID:30303637-3461-4331-a537-623138626532
DTSTAMP:20230202T191213Z
CREATED:20221205T205734Z
DESCRIPTION:Topic: TBA
DTSTART:20230428T131500Z
DTEND:20230428T144500Z
LAST-MODIFIED:20221205T205800Z
LOCATION:Remote Access
SUMMARY:Joint IAS/Princeton/Montreal/Paris/Tel-Aviv Symplectic Geometry Zoo
minar
URL:https://www.ias.edu/math/events/joint-iasprincetonmontrealparistel-aviv
-symplectic-geometry-zoominar-117
END:VEVENT
BEGIN:VEVENT
UID:31663737-6632-4538-b861-356135383439
DTSTAMP:20230202T191213Z
CREATED:20221014T133916Z
DESCRIPTION:Topic: TBD
DTSTART:20230428T170000Z
DTEND:20230428T193000Z
LAST-MODIFIED:20221205T192908Z
LOCATION:Rubenstein Commons | Meeting Room 5
SUMMARY:Milnor Conjecture Learning Seminar
URL:https://www.ias.edu/math/events/milnor-conjecture-learning-seminar-22
END:VEVENT
BEGIN:VEVENT
UID:30376161-3533-4739-b465-346330633735
DTSTAMP:20230202T191213Z
CREATED:20221213T151511Z
DESCRIPTION:Topic: TBD \n\nSpeakers: Daniela De Silva\n\nAffiliation: Colum
bia University
DTSTART:20230503T190000Z
DTEND:20230503T200000Z
LAST-MODIFIED:20230119T162609Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Analysis and Mathematical Physics
URL:https://www.ias.edu/math/events/analysis-and-mathematical-physics-13
END:VEVENT
BEGIN:VEVENT
UID:65656163-3530-4662-a361-633137363934
DTSTAMP:20230202T191213Z
CREATED:20230123T152918Z
DESCRIPTION:
DTSTART:20230504T203000Z
DTEND:20230504T213000Z
LAST-MODIFIED:20230123T152948Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Joint IAS/PU Number Theory Seminar
URL:https://www.ias.edu/math/events/joint-iaspu-number-theory-seminar-24
END:VEVENT
BEGIN:VEVENT
UID:61393939-6637-4134-b666-623563303031
DTSTAMP:20230202T191213Z
CREATED:20221205T205814Z
DESCRIPTION:Topic: TBA
DTSTART:20230505T131500Z
DTEND:20230505T144500Z
LAST-MODIFIED:20221205T205838Z
LOCATION:Remote Access
SUMMARY:Joint IAS/Princeton/Montreal/Paris/Tel-Aviv Symplectic Geometry Zoo
minar
URL:https://www.ias.edu/math/events/joint-iasprincetonmontrealparistel-aviv
-symplectic-geometry-zoominar-118
END:VEVENT
BEGIN:VEVENT
UID:36656139-6461-4530-b162-613064376534
DTSTAMP:20230202T191213Z
CREATED:20230109T181224Z
DESCRIPTION:Topic: TBD \n\nSpeakers: Valentino Tosatti\n\nAffiliation: New
York University
DTSTART:20230510T190000Z
DTEND:20230510T200000Z
LAST-MODIFIED:20230119T162651Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Analysis and Mathematical Physics
URL:https://www.ias.edu/math/events/analysis-and-mathematical-physics-16
END:VEVENT
BEGIN:VEVENT
UID:65633538-6335-4836-b432-376134363665
DTSTAMP:20230202T191213Z
CREATED:20230123T153810Z
DESCRIPTION:
DTSTART:20230511T203000Z
DTEND:20230511T213000Z
LAST-MODIFIED:20230123T153831Z
LOCATION:Princeton University\, Fine Hall 214
SUMMARY:Joint IAS/PU Number Theory Seminar
URL:https://www.ias.edu/math/events/joint-iaspu-number-theory-seminar-27
END:VEVENT
BEGIN:VEVENT
UID:38653930-3939-4563-a434-356466386633
DTSTAMP:20230202T191213Z
CREATED:20221213T152011Z
DESCRIPTION:Topic: TBD \n\nSpeakers: Katharina Schratz\n\nAffiliation: Sorb
onne Université
DTSTART:20230517T190000Z
DTEND:20230517T200000Z
LAST-MODIFIED:20230119T162732Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Analysis and Mathematical Physics
URL:https://www.ias.edu/math/events/analysis-and-mathematical-physics-15
END:VEVENT
BEGIN:VEVENT
UID:34666132-6431-4964-a664-666137353931
DTSTAMP:20230202T191213Z
CREATED:20230123T153416Z
DESCRIPTION:
DTSTART:20230518T203000Z
DTEND:20230518T213000Z
LAST-MODIFIED:20230123T153506Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Joint IAS/PU Number Theory Seminar
URL:https://www.ias.edu/math/events/joint-iaspu-number-theory-seminar-25
END:VEVENT
BEGIN:VEVENT
UID:30656137-6134-4031-b766-313436313063
DTSTAMP:20230202T191213Z
CREATED:20221205T205853Z
DESCRIPTION:Topic: TBA
DTSTART:20230519T131500Z
DTEND:20230519T144500Z
LAST-MODIFIED:20221205T205919Z
LOCATION:Remote Access
SUMMARY:Joint IAS/Princeton/Montreal/Paris/Tel-Aviv Symplectic Geometry Zoo
minar
URL:https://www.ias.edu/math/events/joint-iasprincetonmontrealparistel-aviv
-symplectic-geometry-zoominar-119
END:VEVENT
BEGIN:VEVENT
UID:38303762-3039-4333-a234-303736613763
DTSTAMP:20230202T191213Z
CREATED:20220223T182136Z
DESCRIPTION:Topic: Patterns in Integers: dynamical and number theoretic app
roaches\n\nUhlenbeck Lecture Course: Ergodic Ramsey Theory\nLecturer: Tama
r Ziegler\, IAS/Einstein Institute of Mathematics\, Hebrew\nUniversity\n\n
A famous theorem of Szemeredi from 1975 states that any subset of\npositiv
e density in the integers contains arbitrarily long arithmetic\nprogressio
ns. In 1977 Furstenberg gave an ergodic theoretic proof of\nSzemeredi’s th
eorem. Furstenberg observed that combinatorial\nstatements about patterns
in the integers correspond to multiple\nrecurrence questions in ergodic th
eory. This gave rise to the field of\nErgodic Ramsey theory\, which center
s around proving Ramsey type\nresults using ergodic theoretic techniques (
some such results have not\nalternative proof to this day!). The course w
ill introduce the\nparticipant to some ideas in ergodic Ramsey theory and
also to\nconnections with other approaches to Ramsey type problems includi
ng\nthe circle method\, which will be introduced in the second course.\n\n
Terng Lecture Course: The Circle Method\nLecturer: Lillian Pierce\, Duke U
niversity\n\nThis series will invite participants into the beautiful world
of the\ncircle method. This method\, which combines both arithmetic and\n
analytic insights\, originated 100 years ago in work of Hardy and\nRamanuj
an\, in their study of the partition function. It was then more\nfully dev
eloped by Hardy and Littlewood in the study of Waring’s\nproblem\, which a
sks how many ways a given integer may be expressed as\na sum of s perfect
k-th powers. We will introduce the mechanics of the\ncircle method in the
setting of Waring’s problem. Then we will\nexplore the relationship to Erg
odic Ramsey Theory by applying the\ncircle method to address questions lik
e the following: must every set\nof integers with positive density contain
a 3-term arithmetic\nprogression? The series will conclude by giving a “w
orld tour' of\nmathematicians currently investigating problems via the cir
cle method.
DTSTART:20230520T130000Z
DTEND:20230526T180000Z
LAST-MODIFIED:20220926T184308Z
LOCATION:
SUMMARY:2023 Program for Women and Mathematics
URL:https://www.ias.edu/math/wam/events/2023-program-women-and-mathematics
END:VEVENT
BEGIN:VEVENT
UID:31656563-3661-4534-b933-643566393434
DTSTAMP:20230202T191213Z
CREATED:20221205T205933Z
DESCRIPTION:Topic: TBA
DTSTART:20230526T131500Z
DTEND:20230526T144500Z
LAST-MODIFIED:20221205T210022Z
LOCATION:Remote Access
SUMMARY:Joint IAS/Princeton/Montreal/Paris/Tel-Aviv Symplectic Geometry Zoo
minar
URL:https://www.ias.edu/math/events/joint-iasprincetonmontrealparistel-aviv
-symplectic-geometry-zoominar-120
END:VEVENT
BEGIN:VEVENT
UID:64313561-3134-4331-b735-353563623066
DTSTAMP:20230202T191213Z
CREATED:20230109T181422Z
DESCRIPTION:Topic: TBD \n\nSpeakers: Darren King\n\nAffiliation: New York U
niversity
DTSTART:20230531T190000Z
DTEND:20230531T200000Z
LAST-MODIFIED:20230119T162815Z
LOCATION:Simonyi Hall 101 and Remote Access
SUMMARY:Analysis and Mathematical Physics
URL:https://www.ias.edu/math/events/analysis-and-mathematical-physics-17
END:VEVENT
BEGIN:VEVENT
UID:64303630-6465-4433-a562-366437636666
DTSTAMP:20230202T191213Z
CREATED:20230126T151538Z
DESCRIPTION:Speakers: Stanisław Kasjan\n\nAffiliation: Nicolaus Copernicus
University \n\nTo Be Announced
DTSTART:20230606T180000Z
DTEND:20230606T190000Z
LAST-MODIFIED:20230126T152202Z
LOCATION:Simonyi 101 and Remote Access
SUMMARY:Special Year Research Seminar
URL:https://www.ias.edu/math/events/special-year-research-seminar-18
END:VEVENT
BEGIN:VEVENT
UID:38343862-6166-4632-a232-353830366132
DTSTAMP:20230202T191213Z
CREATED:20221205T210040Z
DESCRIPTION:Topic: TBA
DTSTART:20230609T131500Z
DTEND:20230609T144500Z
LAST-MODIFIED:20221205T210104Z
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-121
END:VEVENT
BEGIN:VEVENT
UID:30626535-3465-4663-a363-356436313965
DTSTAMP:20230202T191213Z
CREATED:20221205T210342Z
DESCRIPTION:Topic: TBA
DTSTART:20230616T131500Z
DTEND:20230616T144500Z
LAST-MODIFIED:20221205T210414Z
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-122
END:VEVENT
BEGIN:VEVENT
UID:35396136-3734-4237-a435-653031353861
DTSTAMP:20230202T191213Z
CREATED:20221205T210422Z
DESCRIPTION:Topic: TBA
DTSTART:20230623T131500Z
DTEND:20230623T144500Z
LAST-MODIFIED:20221205T210442Z
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-123
END:VEVENT
BEGIN:VEVENT
UID:61373363-3965-4039-b234-303733316532
DTSTAMP:20230202T191213Z
CREATED:20221205T210453Z
DESCRIPTION:Topic: TBA
DTSTART:20230630T131500Z
DTEND:20230630T144500Z
LAST-MODIFIED:20221205T210517Z
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-124
END:VEVENT
END:VCALENDAR