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arXiv 2003.08570math.DG
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一类由支撑函数和曲率函数展开的曲率流

A class of curvature flows expanded by support function and curvature function

Shanwei Ding, Guanghan Li

摘要:

本文考虑欧氏\mathbb{R}^{n+1}中闭的、光滑的、一致凸超曲面以u^αf^β(α,β \in \mathbb{R}^1)为速度的扩张流,其中u是超曲面的支撑函数,f是超曲面的主曲率半径的光滑、对称、齐次一次正函数.当α \leq 0<β \leq 1-α时,我们证明了该流在任何时刻都有唯一的光滑一致凸解,并且在归一化后光滑收敛到以原点为中心的圆球面.

英文摘要:

In this paper, we consider an expanding flow of closed, smooth, uniformly convex hypersurface in Euclidean \mathbb{R}^{n+1} with speed u^αf^β(α, β\in\mathbb{R}^1), where u is support function of the hypersurface, f is a smooth, symmetric, homogenous of degree one, positive function of the principal curvature radii of the hypersurface. If α\leq 0<β\leq 1-α, we prove that the flow has a unique smooth and uniformly convex solution for all time, and converges smoothly after normalization, to a round sphere centered at the origin.

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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