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arXiv 2304.04772math.SP
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Neumann-Poincaré算子特征值的衰减率

Decay rate of the eigenvalues of the Neumann-Poincaré operator

Shota Fukushima, Hyeonbae Kang, Yoshihisa Miyanishi

AI总结:

本文研究了三维及二维中具有较少正则性边界的区域,根据边界的Hölder指数推导了Neumann-Poincaré算子特征值衰减率的定量估计,并显著改进了正则边界下的已知结果。

摘要:

如果三维中某个区域的边界足够光滑,那么Neumann-Poincaré算子特征值的衰减率是已知的,并且是最优的。在本文中,我们处理具有较少正则性边界的区域,并根据边界的Hölder指数推导出Neumann-Poincaré特征值衰减率的定量估计。估计特别表明,边界的正则性越低,特征值的衰减越慢。我们还证明了二维中类似的估计。这些估计不仅适用于衰减率未知的较少正则性边界,也适用于正则边界,对于后者,本文的结果对已知结果做出了显著改进。

英文摘要:

If the boundary of a domain in three dimensions is smooth enough, then the decay rate of the eigenvalues of the Neumann-Poincaré operator is known and it is optimal. In this paper, we deal with domains with less regular boundaries and derive quantitative estimates for the decay rates of the Neumann-Poincaré eigenvalues in terms of the Hölder exponent of the boundary. Estimates in particular show that the less the regularity of the boundary is, the slower is the decay of the eigenvalues. We also prove that the similar estimates in two dimensions. The estimates are not only for less regular boundaries for which the decay rate was unknown, but also for regular ones for which the result of this paper makes a significant improvement over known results.

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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