Actions of Large Groups, Geometric Structures, and the Zimmer Program

Coarse embeddings and group actions preserving rigid geometric structures

14 juin 2024, 11:00

1h

Amphithéâtre Hermite / Darboux (Institut Henri Poincaré)

Orateur

Charles Frances (University of Strasbourg)

Description

We will see how the notion of coarse embeddings allows to better understand discrete group actions preserving a rigid geometric structure. The focus will mainly be on isometric and conformal actions. In particular, we will discuss a Tits alternative for isometry groups of compact Lorentzian manifolds.