Talk page

Title:
Definably amenable NIP groups

Speaker:
Pierre Simon

Abstract:
I will talk about definably amenable groups in NIP theories, that is NIP groups admitting a translation-invariant measure on the class of definable sets. Examples include stable groups, compact Lie groups and solvable NIP groups. In a joint work with Artem Chernikov, we characterize "generic types" in this context, describe the space of invariant measures and prove "generic compact domination". I will present this work and mention some more recent developments.

Link:
https://www.msri.org/workshops/686/schedules/18405

Workshop:
MSRI- Model Theory in Geometry and Arithmetic