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arXiv 1612.01700math.APmath.SP
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一类退化椭圆算子:最大值原理及其推论

A family of degenerate elliptic operators: maximum principle and its consequences

Isabeau Birindelli, Giulio Galise, Hitoshi Ishii

摘要:

本文研究高阶项为Hessian的k个特征值之和的退化椭圆算子的最大值原理的有效性及其结果。特别是,我们揭示了一些非常不寻常的现象,由于简并的运营商。进一步证明了等半径球相交的凸区域中问题的Lipschitz正则性结果和边界估计。我们还证明了光滑有界严格凸区域是这个类的一部分。作为一个结果,我们得到的狄利克雷问题和主要特征函数的解决方案的存在性。

英文摘要:

In this paper we investigate the validity and the consequences of the maximum principle for degenerate elliptic operators whose higher order term is the sum of "k" eigenvalues of the Hessian. In particular we shed some light on some very unusual phenomena due to the degeneracy of the operator. We prove moreover Lipschitz regularity results and boundary estimates for problems in convex domains which are intersections of ball of same radius. We prove also that smooth bounded strictly convex domains are part of this class. As a consequence we obtain the existence of solutions of the Dirichlet problem and of principal eigenfunctions.

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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