In this note we analyze the Almgren-Taylor-Wang scheme for mean curvature flow in the case of mean convex initial conditions. We show that the scheme preserves strict mean convexity and, by compensated compactness techniques, that the arrival time functions converge strictly in BV. In particular, this establishes the convergence of the time-integrated perimeters of the approximations. As a corollary, the conditional convergence result of Luckhaus- Sturzenhecker becomes unconditonal in the mean convex case.
|Original language||English (US)|
|Number of pages||20|
|Journal||Annali della Scuola Normale Superiore di Pisa - Classe di Scienze|
|State||Published - 2020|
ASJC Scopus subject areas
- Theoretical Computer Science
- Mathematics (miscellaneous)