Quasiconformal Gauss maps and the Bernstein problem for Weingarten multigraphs

We prove that any complete, uniformly ellipticWeingarten surface in Euclidean 3-space whose Gauss map image omits an open hemisphere is a cylinder or a plane. This generalizes a classical theorem by Hoffman, Osserman and Schoen for constant mean curvature surfaces. In particular, this proves that pl...

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Detalhes bibliográficos
Autores: Fernández Delgado, Isabel, Gálvez, José A., Mira, Pablo
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2020
País:España
Recursos:Universidad de Sevilla (US)
Repositorio:idUS. Depósito de Investigación de la Universidad de Sevilla
OAI Identifier:oai:idus.us.es:11441/115303
Acesso em linha:https://hdl.handle.net/11441/115303
Access Level:acceso abierto
Palavra-chave:Weingarten surfaces
Fully nonlinear elliptic equations
Bernstein problem
Multigraphs
Curvature estimates
Quasiconformal Gauss map
Descrição
Resumo:We prove that any complete, uniformly ellipticWeingarten surface in Euclidean 3-space whose Gauss map image omits an open hemisphere is a cylinder or a plane. This generalizes a classical theorem by Hoffman, Osserman and Schoen for constant mean curvature surfaces. In particular, this proves that planes are the only complete, uniformly elliptic Weingarten multigraphs. We also show that this result holds for a large class of non-uniformly elliptic Weingarten equations. In particular, this solves in the affirmative the Bernstein problem for entire graphs for that class of elliptic equations. To obtain these results, we prove that planes are the only complete multigraphs with quasiconformal Gauss map and bounded second fundamental form.