Abstract
We establish a pointwise comparison result for a nonlinear degenerate elliptic Dirichlet problem using an isoperimetric inequality involving the total mean curvature. In particular this result provides a sharp estimate for the extinction time of a class of compact surfaces, wider than the convex one, moving by mean curvature flow. Finally we present numerical experiments to compare our estimate with those known in literature.
Original language | English |
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Pages (from-to) | 551-557 |
Number of pages | 7 |
Journal | Applied Mathematics Letters |
Volume | 20 |
Issue number | 5 |
DOIs | |
State | Published - May 2007 |
Externally published | Yes |
Keywords
- Isoperimetric inequality
- Mean curvature motion