Graduate Geometry, Topology and Dynamics Seminar
Mark O'Brien
UIC
One Ended Two Dimensional Right-Angled Coxeter Groups
Abstract: The main theorem of this talk states that every geometric action of a 1-ended right-angled Coxeter on a two dimensonal
CAT(0) complex with the geodesic extension property has a strict fundamental domain.
Applications include a complete characterization of strongly rigid
right-angled Coxeter groups which act geometrically on a two dimensional CAT(0) complex.
Monday August 31, 2009 at 3:00 PM in SEO 612