Penn Arts & Sciences Logo

Penn Mathematics Colloquium

Wednesday, November 16, 2005 - 4:30pm

David Gabai

Princeton University

Location

University of Pennsylvania

DRL A6

Joint work with Danny Calegari. We will discuss, shrinkwrapping a technique for finding CAT(-1) surfaces in hyperbolic 3-manifolds and will use it to show to prove Theorem (Agol, Calegari - G) A complete hyperbolic 3-manifold with finitely generated fundamental group is geometrically and topologically tame.