Localization of Neumann eigenfunctions near irregular boundaries
Localization of Neumann eigenfunctions near irregular boundaries
复制标题
不规则边界附近诺依曼本征函数的本地化
DOI:
10.1088/1361-6544/aafa89
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发表时间:
2019
期刊:
影响因子:
1.7
通讯作者:
Steinerberger, Stefan
中科院分区:
文献类型:
--
作者:
Jones, Peter W;Steinerberger, Stefan
It has been empirically observed that eigenfunctions of Laplace's equation with Neumann boundary conditions sometimes localize near the boundary of the domain if that boundary is rough (say, fractal). This has some nontrivial implications in acoustics that has been put to real-life use (sound attenuation by noise-protective walls); this short paper describes the mathematical mechanism responsible for this and describes the quantitative strength of the phenomenon for some examples.
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DOI:
10.1090/proc/13343
发表时间:
2015
期刊:
arXiv: Spectral Theory
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