Convex cocompactness for Coxeter groups
Organizers
Speaker
Gye-Seon Lee
Time
Tuesday, April 22, 2025 2:45 PM - 4:30 PM
Venue
A3-4-301
Online
Zoom 815 762 8413
(BIMSA)
Abstract
There are several notions of convex cocompactness for discrete subgroups of PGL(V) acting on the projective space P(V), where V is a finite-dimensional real vector space. This generalizes both the classical theory of convex cocompactness in real hyperbolic geometry, and the theory of divisible convex sets. In this talk, I will explain these notions in the context of Vinberg's theory of discrete reflection groups. Joint work with Jeffrey Danciger, François Guéritaud, Fanny Kassel and Ludovic Marquis