Gauss curvature type flow and Alexandrov-Fenchel inequalities in the hyperbolic space
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arXiv
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| Hauptverfasser: | , |
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| Format: | Preprint |
| Veröffentlicht: |
2024
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| _version_ | 1866909076560019456 |
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| author | Luo, Tianci Zhou, Rong |
| author_facet | Luo, Tianci Zhou, Rong |
| contents | We consider the Gauss curvature type flow for uniformly convex hypersurfaces in the hyperbolic space $\mathbb{H}^{n+1}\ (n\geqslant 2)$. We prove that if the initial closed hypersurface is smooth and uniformly convex, then the smooth solution exists for all positive time and converges smoothly and exponentially to a geodesic sphere centered at the origin. The key step is to prove the upper bound of Gauss curvature and that uniform convexity preserves along the flow. As an application, we provide a new proof for an Alexandrov-Fenchel inequality comparing $(n-2)$th quermassintegral and volume of convex domains in $\mathbb{H}^{n+1}\ (n\geqslant 2)$. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2401_09776 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Gauss curvature type flow and Alexandrov-Fenchel inequalities in the hyperbolic space Luo, Tianci Zhou, Rong Differential Geometry 53C42, 53E10 We consider the Gauss curvature type flow for uniformly convex hypersurfaces in the hyperbolic space $\mathbb{H}^{n+1}\ (n\geqslant 2)$. We prove that if the initial closed hypersurface is smooth and uniformly convex, then the smooth solution exists for all positive time and converges smoothly and exponentially to a geodesic sphere centered at the origin. The key step is to prove the upper bound of Gauss curvature and that uniform convexity preserves along the flow. As an application, we provide a new proof for an Alexandrov-Fenchel inequality comparing $(n-2)$th quermassintegral and volume of convex domains in $\mathbb{H}^{n+1}\ (n\geqslant 2)$. |
| title | Gauss curvature type flow and Alexandrov-Fenchel inequalities in the hyperbolic space |
| topic | Differential Geometry 53C42, 53E10 |
| url | https://arxiv.org/abs/2401.09776 |