Hypersurfaces associated to Sn by a sphere congruence

Descripción del Articulo

In this work a sufficient condition is exhibited for a hypersurface in Rn+1 to be the envelope of a sphere congruence whose other envelope is contained in a unit sphere. A local parametrization for such envelopes is provided depending on an orthogonal local parametrization of Sn and their fundamenta...

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Detalles Bibliográficos
Autor: Pereira Santos, Laredo Rennan
Formato: artículo
Fecha de Publicación:2019
Institución:Universidad Nacional de Trujillo
Repositorio:Revistas - Universidad Nacional de Trujillo
Lenguaje:portugués
español
OAI Identifier:oai:ojs.revistas.unitru.edu.pe:article/2630
Enlace del recurso:https://revistas.unitru.edu.pe/index.php/SSMM/article/view/2630
Nivel de acceso:acceso abierto
Materia:Sphere congruence
envelope of a sphere congruence
surfaces associated by a sphere congruence
Congruencia de esferas
envelope de uma congruencia de esferas
superfícies associadas por uma congruencia de esferas
Descripción
Sumario:In this work a sufficient condition is exhibited for a hypersurface in Rn+1 to be the envelope of a sphere congruence whose other envelope is contained in a unit sphere. A local parametrization for such envelopes is provided depending on an orthogonal local parametrization of Sn and their fundamental forms are described. Finally, a necessary and sufficient condition is presented so that such hypersurfaces are parametrized by lines of curvature and so that they are of rotation.
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