Date:
Wed, 03/05/202311:30-13:00
Location:
Zoom
Title: On f-generic types
Abstract: Recall that a group G definable in a theory T is 'definably amenable' if it admits a translation-invariant Keisler measure. Chernikov and Simon have asked whether, for T NIP, definable amenability of G is equivalent to the existence of a global f-generic type; in this talk we will give a positive answer.
Abstract: Recall that a group G definable in a theory T is 'definably amenable' if it admits a translation-invariant Keisler measure. Chernikov and Simon have asked whether, for T NIP, definable amenability of G is equivalent to the existence of a global f-generic type; in this talk we will give a positive answer.