Previous Conferences & Workshops

Mar
16
2022

Arithmetic Groups

Asymptotic Bounded Cohomology and Uniform Stability of high-rank lattices
Bharatram Rangarajan
11:00am|Simonyi 101 and Remote Access

In ongoing joint work with Glebsky, Lubotzky, and Monod, we construct an analog of bounded cohomology in an asymptotic setting in order to prove uniform stability of lattices in Lie groups (of rank at least two) with respect to unitary groups...

Mar
15
2022

Computer Science/Discrete Mathematics Seminar II

Localization schemes: A framework for proving mixing bounds for Markov chains
Ronen Eldan
10:30am|Simonyi Hall 101 and Remote Access

Two recent and seemingly-unrelated techniques for proving mixing bounds for Markov chains are:

(i) the framework of Spectral Independence, introduced by Anari, Liu and Oveis Gharan, and its numerous extensions, which have given rise to several...

Mar
14
2022

Computer Science/Discrete Mathematics Seminar I

Multi-group learning via Outcome Indistinguishability
Gal Yona
11:15am|Simonyi 101 and Remote Access

As machine learning is widely deployed, it is increasingly important to ensure that predictors will perform well not only on average (across the entire population), but also on specific socially salient subgroups. In this talk, I will present...