The contact number of a pseudo-Euclidean submanifold

In this paper we define the contact number of a pseudo-Riemannian submanifold into the pseudo-Euclidean space, and prove that this contact number is closely related to the notion of pseudo-isotropic submanifold. We give a classification of hypersurfaces into the pseudo-Euclidean space with contact n...

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Detalhes bibliográficos
Autores: Cabrerizo Jaraíz, José Luis, Fernández Andrés, Manuel, Gómez Casanueva, Juan Salvador
Tipo de documento: artigo
Estado:Versão publicada
Data de publicação:2008
País:España
Recursos:Universidad de Sevilla (US)
Repositório:idUS. Depósito de Investigación de la Universidad de Sevilla
OAI Identifier:oai:idus.us.es:11441/47145
Acesso em linha:http://hdl.handle.net/11441/47145
Access Level:Acceso aberto
Palavra-chave:Pseudo-Riemannian submanifold
Pseudo-isotropic submanifold
Contact number of a submanifold
Descrição
Resumo:In this paper we define the contact number of a pseudo-Riemannian submanifold into the pseudo-Euclidean space, and prove that this contact number is closely related to the notion of pseudo-isotropic submanifold. We give a classification of hypersurfaces into the pseudo-Euclidean space with contact number at least 3. A classification of the complete spacelike codimension-2 submanifolds of the Lorentz-Minkowski space with contact number at least 3 is also obtained.