Geometry, Topology and Dynamics Seminar
Jason DeBlois
UIC
Rank gradient of cyclic covers
Abstract: I'll explain two different proofs of the following theorem: the family of cyclic covers dual to
a nonseparating surface in a hyperbolic 3-manifold has positive rank gradient if and only if
the surface is not a fiber. I'll also give some background about why one might care, and pose
a question raised by comparing the two proofs.
Monday February 11, 2008 at 3:00 PM in SEO 612