Topology Seminar: Joseph Maher

Event Date: 

Tuesday, February 7, 2017 - 5:00pm to 6:00pm

Event Location: 

  • 4607B South Hall
Speaker: Joseph Maher (CUNY College of Staten Island)
Title: Random walks on groups with coarse negative curvature. 
Abstract: We will give a gentle introduction to random walks on groups satisfying various types of negative curvature conditions. A simple example is the nearest neighbour random walk on the 4-valent tree, also known as the Cayley graph of the free group on two generators. A typical random walk moves away from the origin at linear speed, and converges to one of the ends of the tree. We will discuss how to generalize this result to more general settings, such as hyperbolic groups, or acylindrical groups. This is joint work with Giulio Tiozzo. 
Note that this talk is not taking place during the usual Topology Seminar time.