Shadows of graphical mean curvature flow

Maurer, Wolfgang

Shadows of graphical mean curvature flow

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Datum

2021

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Zeitschriftenartikel

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Communications in Analysis and Geometry. International Press. 2021, 29(1), pp. 183-206. ISSN 1019-8385. eISSN 1944-9992. Available under: doi: 10.4310/CAG.2021.v29.n1.a6

Zusammenfassung

We consider mean curvature flow of an initial surface that is the graph of a function over some domain of definition in Rⁿ. If the graph is not complete then we impose a constant Dirichlet boundary condition at the boundary of the surface.We establish longtime-existence of the flow and investigate the projection of the flowing surface onto Rⁿ, the shadow of the flow. This moving shadow can be seen as a weak solution for mean curvature flow of hypersurfaces in Rⁿ with a Dirichlet boundary condition. Furthermore, we provide a lemma of independent interest to locally mollify the boundary of an intersection of two smooth open sets in a way that respects curvature conditions.

Fachgebiet (DDC)

510 Mathematik

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ISO 690

MAURER, Wolfgang, 2021. Shadows of graphical mean curvature flow. In: Communications in Analysis and Geometry. International Press. 2021, 29(1), pp. 183-206. ISSN 1019-8385. eISSN 1944-9992. Available under: doi: 10.4310/CAG.2021.v29.n1.a6

BibTex

@article{Maurer2021Shado-53443,
  year={2021},
  doi={10.4310/CAG.2021.v29.n1.a6},
  title={Shadows of graphical mean curvature flow},
  number={1},
  volume={29},
  issn={1019-8385},
  journal={Communications in Analysis and Geometry},
  pages={183--206},
  author={Maurer, Wolfgang}
}

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