Hyperbolic models for Coxeter groups

event Wednesday, September 16, 2026
access_time 4:00pm (CDT)
room PHSC 1105
free_breakfast Tea at 3:30pm (CDT) in PHSC 424

Abstract: Coxeter groups come with a rich collection of parabolic subgroups, some of which exhibit higher-rank product or affine geometry. In this talk, I will explain how these parabolics can be used to construct a natural hyperbolic model for an arbitrary Coxeter group. This model detects exactly the Morse directions, characterizes stable subgroups, and gives the largest acylindrically hyperbolic structure on the group.


For more information on this event, please contact Alexander Mramor.