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arXiv 2005.10688math.DG
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$\mathbb{R}^{3}$ 中平均曲率流的self-similar solutions

Self-similar solutions to the mean curvature flow in $\mathbb{R}^{3}$

Benedito Leandro, Rafael Novais, Hiuri F. S. dos Reis

AI总结:

本文分析了 $\mathbb{R}^{3}$ 中由旋转曲面和直纹面生成的平均曲率流的self-similar solutions,证明了非柱面和锥面的解是平凡的,并刻画了在homothetic helicoidal motion下旋转曲面和柱面的解,给出了精确解的显式族。

摘要:

本文分析了 $\mathbb{R}^{3}$ 中由旋转曲面和直纹面生成的平均曲率流(MCF)的self-similar solutions。我们证明了 $\mathbb{R}^{3}$ 中由非柱面和锥面生成的 MCF 的self-similar solutions是平凡的。此外,我们用生成曲线的曲率刻画了 $\mathbb{R}^{3}$ 中在homothetic helicoidal motion下由旋转曲面生成的 MCF 的self-similar solutions。最后,我们刻画了 $\mathbb{R}^{3}$ 中在homothetic helicoidal motion下由柱面生成的 MCF 的self-similar solutions,并给出了 $\mathbb{R}^{3}$ 中由柱面生成的 MCF 的精确解的显式族。

英文摘要:

In this paper we make an analysis of self-similar solutions for the mean curvature flow (MCF) by surfaces of revolution and ruled surfaces in $\mathbb{R}^{3}$. We prove that self-similar solutions of the MCF by non-cylindrival surfaces and conical surfaces in $\mathbb{R}^{3}$ are trivial. Moreover, we characterize the self-similar solutions of the MCF by surfaces of revolutions under a homothetic helicoidal motion in $\mathbb{R}^{3}$ in terms of the curvature of the generating curve. Finally, we characterize the self-similar solutions for the MCF by cylindrical surfaces under a homothetic helicoidal motion in $\mathbb{R}^3$. Explicit families of exact solutions for the MCF by cylindrical surfaces in $\mathbb{R}^{3}$ are also given.

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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