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arXiv 1606.06346math.AP
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二阶椭圆算子正则边界点的不等价性

On nonequivalence of regular boundary points for second-order elliptic operators

N. V. Krylov, Timur Yastrzhembskiy

摘要:

本文给出了连续系数的非发散型二阶椭圆算子的例子,使得$L$有一个对Laplacian正则的非正则边界点.此外,对于系数矩阵的任何特征值扩展<1,我们提供了一个具有不连续系数的算子的例子,该算子具有与拉普拉斯算子不等价的正则边界点(我们给出了每个不等价方向的例子)。所有示例都是针对从3开始的每个维度构造的。

英文摘要:

In this paper we present examples of nondivergence form second order elliptic operators with continuous coefficients such that $L$ has an irregular boundary point that is regular for the Laplacian. Also for any eigenvalue spread <1 of the matrix of the coefficients we provide an example of operator with discontinuous coefficients that has regular boundary points nonequivalent to Laplacian's (we give examples for each direction of nonequivalence). All examples are constructed for each dimension starting with 3.

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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