Joint Emory-Tech-UGA Seminar - Small entropy surface homeomorphisms

Geometry Topology Seminar
Monday, October 31, 2011 - 2:30pm for 1 hour (actually 50 minutes)
UGA Boyd 302
Dan Margalit – Ga Tech
John Etnyre

Please Note: Note that this talk is on the UGA campus.

To every homeomorphism of a surface, we can attach a positive real number, the entropy. We are interested in the question of what these homeomorphisms look like when the entropy is positive, but small. We give several perspectives on this problem, considering it from the complex analytic, surface topological, 3-manifold theoretical, and numerical points of view. This is joint work with Benson Farb and Chris Leininger.