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Basic Notions: Benjy Weiss (HUJI) - What are amenable groups and why are groups non-amenable | Einstein Institute of Mathematics

Basic Notions: Benjy Weiss (HUJI) - What are amenable groups and why are groups non-amenable

Date: 
Thu, 09/03/201716:00-17:15
Location: 
Ross 70
Title: What are amenable groups and why are groups non-amenable
Abstract: I will give an introduction to amenable
groups and explain the result of Kevin Whyte that a
countable non-amenable group admits a
"translation-like" action by a non-abelian free group.
I will also discuss (without proof) a measure theoretic
analogue of this result due to D. Gaboriau and R. Lyons.