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arXiv 1404.0922math.SPmath.AP
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自伴elliptic differential operators、Dirichlet-to-Neumann映射和抽象Weyl函数的谱分析

Spectral analysis of selfadjoint elliptic differential operators, Dirichlet-to-Neumann maps, and abstract Weyl functions

Jussi Behrndt, Jonathan Rohleder

摘要:

利用Dirichlet-to-Neumann映射的极限行为描述了$L^2(\mathbb{R}^n)$中自伴二阶椭圆型微分算子的谱,Dirichlet-to-Neumann映射产生于多维Glazman分解中,对应于一个内部和外部边值问题.这导致PDE类似于常微分方程谱理论中著名的事实。本文的主要结果首先是在对称算子和相应Weyl函数的扩张理论的更抽象的背景下导出的,然后应用于PDE设置。

英文摘要:

The spectrum of a selfadjoint second order elliptic differential operator in $L^2(\mathbb{R}^n)$ is described in terms of the limiting behavior of Dirichlet-to-Neumann maps, which arise in a multi-dimensional Glazman decomposition and correspond to an interior and an exterior boundary value problem. This leads to PDE analogs of renowned facts in spectral theory of ODEs. The main results in this paper are first derived in the more abstract context of extension theory of symmetric operators and corresponding Weyl functions, and are applied to the PDE setting afterwards.

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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