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arXiv 2402.06372math-phcond-mat.stat-mechmath.MPphysics.chem-ph
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球体Dirichlet-to-Neumann算子的谱性质

Spectral properties of the Dirichlet-to-Neumann operator for spheroids

Denis S. Grebenkov

AI总结:

研究球体域内Dirichlet-to-Neumann算子的谱性质,推导其显式矩阵表示,揭示各向异性对特征值的影响,并应用于扩散控制反应与粒子相遇统计。

摘要:

我们研究了从针状到盘状球体域内Dirichlet-to-Neumann算子及相关Steklov问题的谱性质。推导了该算子在内部和外部问题中的显式矩阵表示。我们展示了球体的各向异性如何影响算子的特征值和特征函数。作为物理应用实例,我们讨论了球体部分反应性目标上的扩散控制反应,以及扩散粒子与球体边界间相遇的统计特性。

英文摘要:

We study the spectral properties of the Dirichlet-to-Neumann operator and the related Steklov problem in spheroidal domains ranging from a needle to a disk. An explicit matrix representation of this operator for both interior and exterior problems is derived. We show how the anisotropy of spheroids affects the eigenvalues and eigenfunctions of the operator. As examples of physical applications, we discuss diffusion-controlled reactions on spheroidal partially reactive targets and the statistics of encounters between the diffusing particle and the spheroidal boundary.

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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