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Rigidity Theorem for Hypersurfaces in a Unit Sphere |
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| Authors: | Guoxin Wei |
| Affiliation: | (1) Tsinghua University, Beijing, P.R. China |
| Abstract: | By investigating hypersurfaces M n in the unit sphere S n+1(1) with H k = 0 and with two distinct principal curvatures, we give a characterization of torus the  . We extend recent results of Perdomo [9], Wang [10] and Otsuki [8]. |
| Keywords: | 2000 Mathematics Subject Classification: 53C42 |
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