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arXiv · 2110.09746

$C^{1,1}$-rectifiability and Heintze-Karcher inequality on $\mathbf{S}^{n+1}$

Xuwen Zhang
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Abstract

In this paper, by isometrically embedding $(\mathbf{S}^{n+1},g_{\mathbf{S}^{n+1}})$ into $\mathbf{R}^{n+2}$, and using nonlinear analysis on the codimension-2 graphs, we will show that the level-sets of the distance function from the boundary of any open set in sphere, are $C^{1,1}$-rectifiable. As a by-product, we establish a Heintze-Karcher inequality on sphere.

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Xuwen Zhang. 2021-10-19. $C^{1,1}$-rectifiability and Heintze-Karcher inequality on $\mathbf{S}^{n+1}$. https://doi.org/10.1051/cocv%2F2023044

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