Date: Sunday, May 06, 2012
Location: B 844 East Hall (11:00 AM to 11:30 AM)
Title: Simplices at infinity for CAT(0) cube complexes
Abstract: I will define the simplicial boundary of a CAT(0) cube complex
X, which is a combinatorial invariant of the 1skeleton of X and is in
several ways analogous to the Tits boundary that X possesses as a CAT(0)
space. Having illustrated some basic properties of the simplicial
boundary, I will discuss how it can be used to generalize
BehrstockCharney's results about divergence of geodesics in
rightangled Artin groups to arbitrary groups acting geometrically on
CAT(0) cube complexes.
Files:
Speaker: Mark Hagen
Institution: McGill
Event Organizer:
