Previous Conferences & Workshops

Oct
27
2023

Joint IAS/Princeton/Montreal/Paris/Tel-Aviv Symplectic Geometry Zoominar

Three 20-min Research Talks
Lukas Nakamura, Habib Alizadeh and Han Lou
9:15am|Remote Access

Lukas Nakamura (University of Upsala):

A Metric on the Contactomorphism Group of an Orderable Contact Manifold: We discuss some properties of a pseudo-metric on the contactomorphism group of a strict contact manifold M induced by the maximum/minimum...

Oct
26
2023

Joint PU/IAS Number Theory

Tate Classes and Endoscopy for GSp4
Naomi Sweeting
4:30pm|*Princeton University, Fine 214*

Weissauer proved using the theory of endoscopy that the Galois representations associated to classical modular forms of weight two appear in the middle cohomology of both a modular curve and a Siegel modular threefold. Correspondingly, there are...

Oct
25
2023

Special Year Seminar

$p$-adic Hodge Theory and Simpson’s Correspondence
Annette Werner
2:00pm|Simonyi 101 and Remote Access

This talk will introduce background, achievements and challenges in the quest to find non-Archimedean versions of the celebrated Corlette-Simpson correspondence, which on Kähler manifolds relates representations of the fundamental group to certain...

Oct
25
2023

Hermann Weyl Lectures

Fourier Uniqueness and Interpolation I, II, III
Maryna Viazovska
11:00am|Simonyi Hall 101 and Remote Access - see Zoom link below

Can we reconstruct a function by knowing only a subset of its values and a subset of the values of the function's Fourier transform?
How many values do we need to know for such a reconstruction? Can we interpolate a given subset of values? What are...

Oct
24
2023

Computer Science/Discrete Mathematics Seminar II

An Optimization Perspective on Log-Concave Sampling
Sinho Chewi
10:30am|Simonyi Hall 101 and Remote Access

I will give an introduction to the problem of sampling from a strongly log-concave density on Euclidean space through the lens of convex optimization.  In particular, I will focus on the interpretation, due to Jordan, Kinderlehrer, and Otto, of the...

Oct
23
2023

Condensed Learning Seminar

Solid Modules and Six Functors for Quasi-Coherent Sheaves
Lenny Taelman
3:30pm|Simonyi Hall 101 and Remote Access

Quasi-coherent sheaves cannot support a six-functor formalism in the same way that e.g. \ell-adic sheaves do. Clausen and Scholze have shown that this can be fixed by extending the category of quasi-coherent sheaves to `solid sheaves’. In this talk...

Oct
23
2023

Members' Colloquium

High Dimensional Variants of the Finite Field Kakeya Problem
Zeev Dvir
2:00pm|Simonyi 101 and Remote Access

The finite field Kakeya problem asks about the size of the smallest set in (F_q)^n containing a line in every direction.  Raised by Wolff in 1999 as a ‘toy’ version of the Euclidean Kakeya conjecture, this problem is now completely resolved using...