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arXiv 2304.02412math.DG
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非紧型秩一对称空间中球面的定量 $C^1$-稳定性

Quantitative $C^1$-stability of spheres in rank one symmetric spaces of non-compact type

Lauro Silini

AI总结:

本文证明在非紧型秩一对称空间中,测地球面在微小 $C^1$-保体积扰动下具有一致的定量稳定性,利用 Laplacian 显式谱隙量化周长增加,并定量证明了小体积下测地球面为等周区域。

摘要:

我们证明,在任意非紧型秩一对称空间 $M\in\{\mathbb{R} H^n,\mathbb{C} H^m,\mathbb{H} H^m,\mathbb{O} H^2\}$ 中,测地球面在微小的 $C^1$-保体积扰动下具有一致的定量稳定性。利用 $M$ 中测地球面上 Laplacian 的显式谱隙,我们用扰动的 $W^{1,2}$-范数量化了周长的增加。由此得出结论,对于小体积情况,测地球面在所有有限周长集合中是等周区域,并给出了定量证明。

英文摘要:

We prove that in any rank one symmetric space of non-compact type $M\in\{\mathbb{R} H^n,\mathbb{C} H^m,\mathbb{H} H^m,\mathbb{O} H^2\}$, geodesic spheres are uniformly quantitatively stable with respect to small $C^1$-volume preserving perturbations. We quantify the gain of perimeter in terms of the $W^{1,2}$-norm of the perturbation, taking advantage of the explicit spectral gap of the Laplacian on geodesic spheres in $M$. As a consequence, we give a quantitative proof that for small volumes, geodesic spheres are isoperimetric regions among all sets of finite perimeter.

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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