Speaker:
Professor Panagiota Daskalopoulos
Institution:
Columbia University
Time:
Tuesday, October 14, 2008 - 4:00pm
Location:
RH 306
We classify compact ancient solutions of the curve
shortening flow and the Ricci flow on Surfaces. We show that these are either a family of contracting circles (contracting spheres in the case of the Ricci flow on surfaces), which is a type I ancient solution,or a family of Angenent ovals (Rosenau solutions in the case of the Ricci flow on surfaces), which corresponds to a type II
solution.