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Friday, November 01, 2019
2:30 PM - 4:30 PM
Linde Hall 187

Geometry and Topology Seminar

Generic Multiplicity One Singularities of Mean Curvature Flow of Surfaces
Ao Sun, Department of Mathematics, MIT,

One of the central topics in mean curvature flow is understanding the singularities. In 1995, Ilmanen conjectured that the first singularity appeared in a smooth mean curvature flow of surfaces must have multiplicity one. Following the theory of generic mean curvature flow developed by Colding-Minicozzi, we prove that a closed singularity with high multiplicity is not generic, in the sense that we may perturb the flow so that this singularity with high multiplicity can never show up. One of the main techniques is the local entropy, which is an extension of the entropy used by Colding-Minicozzi to study the generic mean curvature flow.

For more information, please contact Math Department by phone at 626-395-4335 or by email at mathinfo@caltech.edu.