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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Desigualdades isoperimÃtricas para integrais de curvatura em domÃnios k-convexos estrelados / Isoperimetric inequalities for integrals of curvature in k-convex starshaped domains

Francisco de Assis Benjamim Filho 13 July 2011 (has links)
Conselho Nacional de Desenvolvimento CientÃfico e TecnolÃgico / Baseados nos trabalhos De Gerhardt e Urbas [12], [36], provamos um resultado de convergÃncia global e determinamos precisamente o comportamento assintÃtico de soluÃÃes de um fluxo geomÃtrico que descreve a evoluÃÃo de hipersuperfÃcies estreladas e k-convexas por funÃÃes das curvaturas principais. Como aplicaÃÃo, e seguindo o argumento de Guan e Li [16], utilizamos um caso particular deste resultado de convergÃncia para generalizar a clÃssica desigualdade de Alexandrov-Fenchel para domÃnios estrelados e k-convexos. / Based on the work of Gerhardt and Urbasa [12], [36], we prove a global convergence result and precisely determine the asymptotic behavior of solutions of a geometric flow describing the evolution of starshaped, k-convex hypersurfaces according to certain functions of the principal curvatures. As an application, and following the argument of Guan and Li [16], we use a special case of this convergence result to generalize the classical Alexandrov-Fenchel inequality for domains starry and k-convex.

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