Previous Conferences & Workshops

This is the last talk towards understanding Bezrukavnikov-Finkelberg's derived geometric Satake equivalence. With the preparations from previous talks, we will introduce two filtrations: a topological filtration on the equivariant cohomology and an...

A countable group $G$ is called sofic if it admits a sofic approximation: a sequence of asymptotically free almost actions on finite sets. Given a sofic group $G$, it is a natural problem to try to classify all its sofic approximations and, more...

Given a set $E$ of Hausdorff dimension $s > d/2$ in $\mathbb{R}^d$ , Falconer conjectured that its distance set $\Delta(E)=\{ |x-y|: x, y \in E\}$ should have positive Lebesgue measure. When $d$ is even, we show that $\dim_H E>d/2+1/4$ implies $|...

(joint work with Assaf Naor) A key problem in metric geometry asks: given metric spaces $X$ and $Y$, how well does $X$ embed in $Y$? In this talk, we will consider this problem for the case of the Heisenberg group and explain its connections to...

We prove new lower bounds on the well known Gap-Hamming problem in communication complexity. Our main technical result is an anti-concentration bound for the inner product of two independent random vectors. We show that if A, B are arbitrary subsets...

Simon Allais (ENS Lyon)

Title: Generating functions in Hamiltonian dynamics and symplectic-contact rigidity

Abstract: Generating functions of Hamiltonian diffeomorphisms are maps that can be seen as finite dimensional versions of the action...

We will give an explicit construction and description of a supercuspidal local Langlands correspondence for any $p$-adic group $G$ that splits over a tame extension, provided $p$ does not divide the order of the Weyl group. This construction matches...