Speaker: Yash Lodha
Date: June 30, 2016
Affiliation: EPFL Lausanne, Switzerland

Abstract: Groups of piecewise projective homeomorphisms provide elegant examples of groups that are non amenable, yet do not contain non abelian free subgroups. In this talk I will present a survey of these groups and discuss their striking properties. I will discuss properties such as (non)amenability, finiteness properties, normal subgroup structure and Tarski numbers.