3 years ago

# Minimal hypersurfaces in the ball with free boundary

Glen Wheeler, Valentina-mira Wheeler

Publication date: February 2019

Source: Differential Geometry and its Applications, Volume 62

Author(s): Glen Wheeler, Valentina-Mira Wheeler

##### Abstract

In this note we use the strong maximum principle and integral estimates prove two results on minimal hypersurfaces $F:Mn→Rn+1$ with free boundary on the standard unit sphere. First we show that if F is graphical with respect to any Killing field, then $F(Mn)$ is a flat disk. This result is independent of the topology or number or boundaries. Second, if $Mn=Dn$ is a disk, we show the supremum of the curvature squared on the interior is bounded below by $n$ times the infimum of the curvature on the boundary. These may be combined the give an impression of the curvature of non-flat minimal hyperdisks with free boundary.

DOI: S0926224518301268

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