Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4664829 | Acta Mathematica Scientia | 2010 | 7 Pages |
Abstract
In this article, we prove that the Clifford torus is the only closed hypersurface in the unit sphere Sn+1 (1) with infinite fundamental group, which satisfy r2 ≥ (n – 1)/n, RicM ≤ C−(H), and S ≤ S+(H). Moreover, we give a characterization of Clifford torus with
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