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arXiv 1804.04098math.APmath.DG
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关于翘积流形中常中曲率超曲面的一个注记

A remark on constant mean curvature hypersurfaces in warped product manifolds

Giulio Ciraolo, Alberto Roncoroni, Luigi Vezzoni

摘要:

亚历山德罗夫定理断言球面是空间型中唯一的闭嵌入常数中曲率超曲面。本文考虑了翘曲积流形上的Alexandrov定理,并证明了一个具有Alexandrov定理性质的刚性结果。我们的方法概括了赖利和罗斯的证明,并在更严格的假设下,它提供了一个替代证明最近的Brendle定理。

英文摘要:

Alexandrov's theorem asserts that spheres are the only closed embedded constant mean curvature hypersurfaces in space forms. In this paper, we consider Alexandrov's theorem in warped product manifolds and prove a rigidity result in the spirit of Alexandrov's theorem. Our approach generalizes the proofs of Reilly and Ros and, under more restrictive assumptions, it provides an alternative proof of a recent theorem of Brendle.

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