|Date: Saturday, May 05, 2012
Location: B 844 East Hall (10:15 AM to 10:45 AM)
Title: Mapping class groups, homology & finite covers of surfaces
Abstract: Let S be a orientable surface of negative Euler characteristic. Ã�Â We will discuss the action of pseudo-Anosov mapping classes of S on the homology of various finite covers of S to which they lift. Ã�Â We will be particularly interested in finding a lift of each pseudo-Anosov mapping class for which the homological spectral radius is greater than one. Ã�Â For a given mapping class, we will relate the study of this problem to the topology of the mapping torus.
Speaker: Thomas Koberda