Previous Conferences & Workshops

Oct
24
2022

Computer Science/Discrete Mathematics Seminar I

Average-Case Computational Complexity of Tensor Decomposition
Alex Wein
11:15am|West Lecture Hall and Remote Access

Suppose we are given a random rank-r order-3 tensor---that is, an n-by-n-by-n array of numbers that is the sum of r random rank-1 terms---and our goal is to recover the individual rank-1 terms. In principle this decomposition task is possible when...

Oct
24
2022

Workshop on Additive Combinatorics and Algebraic Connections

The Polynomial Method and High-degree Varieties
Miguel Walsh
11:15am|Simonyi 101 and Remote Access

Abstract: We will discuss some results on high-degree varieties designed to expand the reach of the polynomial method and explain their applications in incidence geometry.

Oct
24
2022

Workshop on Additive Combinatorics and Algebraic Connections

10:00am|Simonyi 101 and Remote Access
Sponsored by Dr. John P. Hempel

This workshop brought together researchers with diverse backgrounds ranging from algebra and algebraic geometry to combinatorics, harmonic analysis, and theoretical computer science. The aim was to learn from each...

Oct
24
2022

Workshop on Additive Combinatorics and Algebraic Connections

Random Character Varieties
10:00am|Simonyi 101 and Remote Access

Abstract: Irreducibility of random polynomials of large degree has been studied recently in works by several authors (in particular by Bary-Soroker, Kozma, Koukoulopoulos and by Varju and myself). We study analogous problems in the setting of word...

Oct
21
2022

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

Symplectic convexity? (an ongoing story...)
Jean Gutt
9:15am|Remote Access

What is the symplectic analogue of being convex? We shall present different ideas to approach this question. Along the way, we shall present recent joint results with J.Dardennes and J.Zhang on monotone toric domains non-symplectomorphic to convex...

Oct
20
2022

Joint IAS/PU Number Theory Seminar

On the kernel of the non abelian Fourier transform
Ngo Bao Chau
4:30pm|Simonyi Hall 101 and Remote Access

Tate reformulated the theory of the Riemann zeta function and its functional equation as the Mellin shadow of the Fourier transform on a certain space of function on the adeles. Conjecturally, Langlands' general automorphic L-functions and their...

Oct
20
2022

Guangbo Xu's Seminar

Derived orbifold chart lifts of flow categories and bimodules
1:00pm|West Lecture Hall and Remote Access

It is convenient to formalize the discussion about Hamiltonian Floer theory using the language of flow categories and bimodules. In this lecture I will explain how to use the notion of "derived orbifold chart lift" of flow categories and bimodules...

Oct
20
2022

Verlinde Dimension Formula

Verlinde Dimension Formula for the Space of Conformal Blocks and the moduli of G-bundles
10:15am|Simonyi 101 and Remote Access

Let G be a simply-connected complex semisimple algebraic group and let C be a smooth projective curve of any genus. Then, the moduli space of semistable G-bundles on C admits so called determinant line bundles. E. Verlinde conjectured a remarkable...

Oct
19
2022

Analysis and Mathematical Physics

On the Stability of the Fractional Caffarelli-Kohn-Nirenberg Inequality
4:30pm|Simonyi 101 and Remote Access

In this talk I will present a general framework to establish the stability of  inequalities of the form >= F(u); where L is a positive linear operator and F is a 2-homogeneous nonlinear functional.

We will then see how this framework can be...