$L^2$ invariants and Benjamini-Schramm convergence

Minerva Distinguished Visitor Lectures at Princeton University: Benjamini-Schramm Convergence in Groups and Dynamics
Topic:$L^2$ invariants and Benjamini-Schramm convergence
Speaker:Lewis Bowen
Affiliation:University of Texas, Austin and Princeton University; Minerva Distinguished Visitor
Date:Friday, October 30
Time/Room:1:30pm - 2:30pm/Fine 110, Princeton University

Finite models of infinite groups/actions/manifolds are useful for studying spectral and $L^2$-invariants, constructing random processes and have recently been used to introduce new invariants of group actions useful for proving nonembedding and nonisomorphism theorems. The first talk will be an overview for a general audience.