Stability index jump for constant mean curvature hypersurfaces of spheres |
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Authors: | Oscar Perdomo Aldir Brasil Jr |
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Affiliation: | 1. Department of Mathematics, Central Connecticut State University, New Britain, CT, 06050, USA 2. Departamento de Matematicas, Universidade Federal do Ceara, Fortaleza, Ceara, Brazil
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Abstract: | It is known that the totally umbilical hypersurfaces in the (n + 1)-dimensional spheres are characterized as the only hypersurfaces with weak stability index 0. That is, a compact hypersurface with constant mean curvature, cmc, in S n+1, different from an Euclidean sphere, must have stability index greater than or equal to 1. In this paper we prove that the weak stability index of any non-totally umbilical compact hypersurface ${M subset S^{{n+1}}}$ with cmc cannot take the values 1, 2, 3 . . . , n. |
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