On the Ricci Curvature of Compact Spacelike Hypersurfaces in de Sitter Space
✍ Scribed by Luis J. Alías
- Book ID
- 110220488
- Publisher
- Springer
- Year
- 1999
- Tongue
- English
- Weight
- 50 KB
- Volume
- 77
- Category
- Article
- ISSN
- 0046-5755
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📜 SIMILAR VOLUMES
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
It is shown that a compact spacelike hypersurface which is contained in the chronological future (or past) of an equator of de Sitter space is a totally umbilical round sphere if one of the mean curvatures H l does not vanish and the ratio H k /H l is constant for some k, l, 1 ≤ l < k ≤ n. This exte