[CvGmt News] GFO-Pisa Seminars - Friday 22 May 2009 - Change
Scheduling
Carlo Mantegazza
c.mantegazza at sns.it
Fri May 22 14:07:03 CEST 2009
The Seminar of today, by Roberta Alessandroni
has been anticipated at 15.00 always in Aula Dini, Palazzo del
Castelletto, Scuola Normale Superiore
Roberta Alessandroni - Dipartimento di Matematica, Universita' di Roma
Convexity estimates for a nonhomogeneous mean curvature flow
Abstract: We consider the flow of a closed immersed hypersurface with speed
given by a function of the mean curvature asymptotic to H/log H for large H.
For a nonconvex initial surface the formation of singularities is well
behaved under this flow. We prove that if a surface has positive mean
curvature at the initial time it becomes asymptotically convex near a
singularity. The technique is similar to the one used for the mean curvature
flow, but in this case the proof is easier and is based only on the maximum
principle.
More information about the News
mailing list