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arXiv 2005.05524math.AP
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变系数惩罚薄障碍问题解的存在性和正则性

Existence and regularity results for the penalized thin obstacle problem with variable coefficients

Donatella Danielli, Brian Krummel

摘要:

在本文中,我们给出了一个全面的处理双罚边界障碍问题的散度型椭圆算子,应用到流体力学和热学的动机。具体地,我们证明了解的存在性、唯一性和最优正则性,并建立了自由边界的结构性质。证明是基于量身定制的单调性公式的Almgren,Weiss和Monneau型,结合斜导数问题的经典理论。

英文摘要:

In this paper we give a comprehensive treatment of a two-penalty boundary obstacle problem for a divergence form elliptic operator, motivated by applications to fluid dynamics and thermics. Specifically, we prove existence, uniqueness and optimal regularity of solutions, and establish structural properties of the free boundary. The proofs are based on tailor-made monotonicity formulas of Almgren, Weiss, and Monneau-type, combined with the classical theory of oblique derivative problems.

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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