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arXiv 0709.0831math.DG
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Eigenvalue pinching及其在超曲面稳定性和几乎脐性中的应用

Eigenvalue pinching and application to the stability and the almost umbilicity of hypersurfaces

Jean-Francois Grosjean, Julien Roth

摘要:

本文给出了具有有界截面曲率的环境空间的紧致超曲面上Laplacian的第一非零特征值的拼挤定理。作为应用,我们给出了这些空间$N$的稳定常中曲率超曲面$M$的刚性结果.事实上,我们证明,如果$M$是包括在一个球的半径足够小,然后Hausdorff距离之间的$M$和测地球$S$的$N$是小的。此外,$M$与$S$是同构的和拟等距的。作为另一个应用,我们给出了几乎脐超曲面的刚性结果。

英文摘要:

In this paper we give pinching theorems for the first nonzero eigenvalue of the Laplacian on the compact hypersurfaces of ambient spaces with bounded sectional curvature. As application we deduce rigidity results for stable constant mean curvature hypersurfaces $M$ of these spaces $N$. Indeed, we prove that if $M$ is included in a ball of radius small enough then the Hausdorff-distance between $M$ and a geodesic sphere $S$ of $N$ is small. Moreover $M$ is diffeomorphic and quasi-isometric to $S$. As other application, we give rigidity results for almost umbilic hypersurfaces.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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