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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

HIPERSUPERFÍCIES EM FORMAS ESPACIAIS QUE SATISFAZEM A CONDIÇÃO LKX = AX

Silva, Luiz Alberto de Oliveira 23 September 2011 (has links)
Submitted by Kleber Silva (kleberbs@ufba.br) on 2016-06-08T17:15:29Z No. of bitstreams: 1 Luiz alberto.pdf: 644089 bytes, checksum: 9b3954641cbd455cc26d613addb8d27d (MD5) / Approved for entry into archive by Alda Lima da Silva (sivalda@ufba.br) on 2016-06-13T17:34:37Z (GMT) No. of bitstreams: 1 Luiz alberto.pdf: 644089 bytes, checksum: 9b3954641cbd455cc26d613addb8d27d (MD5) / Made available in DSpace on 2016-06-13T17:34:37Z (GMT). No. of bitstreams: 1 Luiz alberto.pdf: 644089 bytes, checksum: 9b3954641cbd455cc26d613addb8d27d (MD5) / Este trabalho trata de hipersuperfcies na esfera Sn+1 ou no espaço hiperbólico Hn+1, cujo vetor posição x satisfaz a condição Lkx = Ax, onde Lk e o operador linearizado da (k + 1)-esima curvatura media da hipersuperfcie para um k = 0; 1;
2

Hipersuperfícies em espaços produto com curvaturas principais constantes / Hypersurfaces in product spaces with constant principal curvatures

Santos, Eliane da Silva dos 29 November 2013 (has links)
Neste trabalho, classificamos localmente as hipersuperfcies dos espaços produto S n × R e H n × R, n 6 = 3, com g curvaturas principais constantes e distintas, g {1, 2, 3}. Verifi- camos que tais hipersuperfcies são isoparamétricas de Q nc × R. Além disso, encontramos uma condição necessária e suficiente para que uma hipersuperfcie isoparamétrica de Q nc × R que possui fibrado normal plano, quando observada como uma subvariedade de codimensão dois de R n+2 contendo S n × R e de L n+2 contendo H n × R, tenha curvaturas principais constantes. / In this work, we classify locally the hypersurfaces in product spaces S n × R and H n × R, n 6 = 3, with g distinct constant principal curvatures, g {1, 2, 3}. We verify that such hy- persurfaces are isoparametric in Q nc × R. Furthermore, we find a necessary and sufficient condition for an isoparametric hypersurface in Q nc × R with flat normal bundle, when re- garded as a submanifold with codimension two of the flat spaces R n+2 containing S n × R and L n+2 containing H n × R, having constant principal curvatures.

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