Teoremas de comparação para o núcleo do calor de subvariedades mínimas e aplicações

In this work we will prove comparison results for the heat kernel of minimal submanifolds in Riemannian manifolds with sectional curvature bounded above by the curvature of a model manifold. Next we will obtain results about the L1-Liouville property of Riemannian submersions with minimal fibers. Fi...

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Detalles Bibliográficos
Autor: Chaves, Francisco Pereira
Tipo de recurso: tesis doctoral
Estado:Versión publicada
Fecha de publicación:2016
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/18310
Acceso en línea:http://www.repositorio.ufc.br/handle/riufc/18310
Access Level:acceso abierto
Palabra clave:Geometria diferencial
Variedades riemanianas
Subvariedades mínimas
Curvatura média
Descripción
Sumario:In this work we will prove comparison results for the heat kernel of minimal submanifolds in Riemannian manifolds with sectional curvature bounded above by the curvature of a model manifold. Next we will obtain results about the L1-Liouville property of Riemannian submersions with minimal fibers. Finnaly, we will prove inequalities for the weighted fundamental tone of transversally foliated subsets of weighted Riemannian manifolds in terms of the weighted mean curvatures of the leaves of the foliation.