Abstract.
Here we study complete rotation hypersurfaces with constant k-th mean curvature H k in \( \mathbb{S}^{{n + 1}},k \) even and 2 < k < n. We prove the existence of a constant \( H^{0}_{k} < 0 \) such that there are no such hypersurfaces for \( H_{k} < H^{0}_{k} \) . We have only one compact hypersurface of this kind with \( H_{k} = H^{0}_{k} \) . For each \( H^{0}_{k} < H_{k} < 0 \) there is a corresponding family of complete immersed rotation hypersurfaces, each family containing two isoparametric hypersurfaces. For H k ≥ 0, there is also such a family, now containing only one isoparametric hypersurface. Finally, we prove the existence of compact hypersurfaces with arbitrarily large H k , neither isometric to a sphere nor to a product of spheres.
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*Bull. Braz. Math. Soc. 30 (2), 1999, 139–161.
**Partially supported by FUNCAP, Brazil.
***Partially supported by CNPq, Brazil and DGAPA-UNAM, México.
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Gervasio Colares**, A., Palmas***, O. Addendum to “Complete rotation hypersurfaces with H k constant in space forms”*. Bull Braz Math Soc, New Series 39, 11–20 (2008). https://doi.org/10.1007/s00574-008-0069-2
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DOI: https://doi.org/10.1007/s00574-008-0069-2