We study the problem of uniqueness of complete hypersurfaces immersed in a semi-Riemannian warped product whose warping function has convex logarithm. By applying a maximum principle at the infinity due to S. T. Yau and supposing a natural comparison inequality between the mean curvature of the hypersurface and that of the slices of the region where the hypersurface is contained, we obtain rigidity theorems in such ambient spaces. Applications to the hyperbolic and the steady state spaces are given.
机构:
Univ Fed Sao Carlos, Dept Matemat, Km 235,Rodovia Washington Luis Jardim Guanabara, BR-13565905 Sao Carlos, SP, BrazilUniv Fed Sao Carlos, Dept Matemat, Km 235,Rodovia Washington Luis Jardim Guanabara, BR-13565905 Sao Carlos, SP, Brazil
Lobos, Guillermo A.
Melara, Mynor
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Univ Fed Sao Carlos, Dept Matemat, Km 235,Rodovia Washington Luis Jardim Guanabara, BR-13565905 Sao Carlos, SP, Brazil
Univ Fed Amazonas, Dept Estat, Campus Senador Arthur Virgilio Filho, BR-69080900 Manaus, Amazonas, BrazilUniv Fed Sao Carlos, Dept Matemat, Km 235,Rodovia Washington Luis Jardim Guanabara, BR-13565905 Sao Carlos, SP, Brazil
Melara, Mynor
Santos, Maria R. B.
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Univ Fed Amazonas, Dept Estat, Campus Senador Arthur Virgilio Filho, BR-69080900 Manaus, Amazonas, BrazilUniv Fed Sao Carlos, Dept Matemat, Km 235,Rodovia Washington Luis Jardim Guanabara, BR-13565905 Sao Carlos, SP, Brazil
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Univ Salento, Dipartimento Matemat & Fis E De Giorgi, Via Prov Lecce Arnesano, I-73100 Lecce, ItalyUniv Salento, Dipartimento Matemat & Fis E De Giorgi, Via Prov Lecce Arnesano, I-73100 Lecce, Italy