Date: Sept 11th & Oct 2nd 2012
Speaker: Timothy Susse (GC)
Title: Introduction to Non-positive Curvature
Abstract: Aspects of negative and non-positive curvature have been the
focus of much research, especially in recent years. We will present a
combinatorial condition which captures curvature upper bounds for
general metric spaces and proceed to prove some basic results. Our
eventual goal will be to address metric cube complexes and give a
simple, combinatorial condition to determine when they are
non-positively curved.