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arXiv 0807.2627math.AP
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分数阶中曲率流的水平集方法

Level set approach for fractional mean curvature flows

Cyril Imbert

摘要:

本文研究了一个几何流,它的定律包含一个奇异积分算子。该算子用于定义集合的非局部中曲率。此外,关联流还出现在两个重要的应用中:位错动力学和分数阶反应扩散方程的相域论。它是通过使用水平集方法定义的。本文的主要结果是:一方面,几何流的适当水平集公式;另一方面,与流动相关联的几何方程的稳定性和比较结果。

英文摘要:

This paper is concerned with the study of a geometric flow whose law involves a singular integral operator. This operator is used to define a non-local mean curvature of a set. Moreover the associated flow appears in two important applications: dislocation dynamics and phase field theory for fractional reaction-diffusion equations. It is defined by using the level set method. The main results of this paper are: on one hand, the proper level set formulation of the geometric flow; on the other hand, stability and comparison results for the geometric equation associated with the flow.

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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