Sobre estabilidade de hipersuperfícies com curvatura escalar nula.
We will prove that there are no complete and stable hypersurface of R4 with zero scalar curvature, polynomial volume growth and such that -K H3 ≥ c> 0 at any point, for some constant c> 0, where K denotes the curvature of Gauss-Kronecker and H denotes the mean curvature of the immersion x: M3...
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| Tipo de recurso: | tesis de maestría |
| Estado: | Versión publicada |
| Fecha de publicación: | 2018 |
| País: | Brasil |
| Institución: | Universidade Federal do Ceará (UFC) |
| Repositorio: | Repositório Institucional da Universidade Federal do Ceará (UFC) |
| Idioma: | portugués |
| OAI Identifier: | oai:repositorio.ufc.br:riufc/34725 |
| Acceso en línea: | http://www.repositorio.ufc.br/handle/riufc/34725 |
| Access Level: | acceso abierto |
| Palabra clave: | Curvatura escalar Curvatura de Gauss-Kronecker Curvatura média Estabilidade Gráficos Vizinhança tubular Volume Scalar curvature Gauss-Kronecker Bend Mean curvature Stability Graphics Tubular neighborhood |
| Sumario: | We will prove that there are no complete and stable hypersurface of R4 with zero scalar curvature, polynomial volume growth and such that -K H3 ≥ c> 0 at any point, for some constant c> 0, where K denotes the curvature of Gauss-Kronecker and H denotes the mean curvature of the immersion x: M3 → R4, where Mn is Riemannian variety. Our second result is a Bernstein type, which guarantees that there are no complete graphs of R4 with zero scalar curvature and such that -K H3 ≥ c> 0 at every point. Finally, it will be shown that if there is a stable hypersurface with zero scalar curvature and -K H3 ≥ c> 0 at all points, that is, with volume growth higher than the polynomial, then its tubular neighborhood is not plunged by soft rays. |
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