Interior estimates for hypersurfaces moving by mean curvature (Q919625)

We prove local bounds on gradient, curvature and higher order geometric quantities for hypersurfaces in \({\mathbb{R}}^{n+1}\) moving by mean curvature. Furthermore a shorttime existence result for a large class of noncompact hypersurfaces is derived as well as a maximum principle for heat equations on complete manifolds with time dependent metric. A major application of the interior estimates is the result that mean curvature flow admits a smooth solution for all time in the class of entire graphs over \({\mathbb{R}}^ n\) without any growth assumptions near infinity for the initial surface.