PSU Mark
Eberly College of Science Mathematics Department

Meeting Details

For more information about this meeting, contact Augustin Banyaga, Mari Royer, Aissa Wade, Diane Henderson.

Title:On the Le Roux's fragmentation lemma
Seminar:Symplectic Topology Seminar
Speaker:Peter Spaeth, PSU
A. Fathi in 1980 asked whether the group of area preserving homeomorphisms of the disk that fix a neighborhood of the boundary is simple. While Fathi's question remains open, recently, F. Le Roux has shown that simplicity is equivalent to a fragmentation result in the group of compactly supported area preserving diffeomorphisms of the plane

Room Reservation Information

Room Number:MB315
Date:02 / 12 / 2009
Time:01:25pm - 02:15pm