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arXiv 0803.3513math.APmath-phmath.MP
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平面中奇异曲率流的漫画

A caricature of a singular curvature flow in the plane

Piotr B. Mucha, Piotr Rybka

摘要:

研究一维奇异全变差型抛物型方程.该问题是奇异曲率流的简化问题。我们证明了弱解的存在唯一性。我们还证明了半离散化问题的弱解的存在性以及逼近序列的收敛性。半离散化表明必须形成面。对于一类初始数据,我们能够详细研究小平面的形成和相互作用及其渐近行为。我们注意到,我们的定性结果可以解释的帮助下,一个特殊的组合物的多值算子。

英文摘要:

We study a singular parabolic equation of the total variation type in one dimension. The problem is a simplification of the singular curvature flow. We show existence and uniqueness of weak solutions. We also prove existence of weak solutions to the semi-discretization of the problem as well as convergence of the approximating sequences. The semi-discretization shows that facets must form. For a class of initial data we are able to study in details the facet formation and interactions and their asymptotic behavior. We notice that our qualitative results may be interpreted with the help of a special composition of multivalued operators.

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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