Seminar Event Detail

RTG Workshops/Lectures

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 1-skeleton 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
Behrstock-Charney's results about divergence of geodesics in
right-angled Artin groups to arbitrary groups acting geometrically on
CAT(0) cube complexes.


Speaker:  Mark Hagen
Institution:  McGill

Event Organizer:     


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