Curvature properties of compact spacelik
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Juan A. Aledo; Luis J. AlΔ±Μas
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Article
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2001
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Elsevier Science
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English
β 87 KB
In this paper we establish a sufficient condition for a compact spacelike hypersurface in de Sitter space to be spherical in terms of a lower bound for the square of its mean curvature. Our result will be a consequence of the maximum principle for the Laplacian operator. We also derive some other ap