Waves trapped by a thin curved screen in a waveguide with rigid walls

被引：0
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作者：
S. A. Nazarov
机构：
[1] Russian Academy of Sciences,Institute of Problems of Mechanical Engineering
来源：
Acoustical Physics | 2012年 / 58卷
关键词：
waveguide; rigid walls; thin curved screen; trapped modes; discrete and continuous spectra; asymptotics of eigenvalues;
D O I：
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中图分类号：
学科分类号：
摘要：
The conditions are derived for the existence of waves trapped by a symmetrical thin rigid screen in a two-dimensional waveguide with rigid walls. Asymptomatic formulas are found for the corresponding eigenvalues, while the asymptomatic structures differ from those pertaining to the eigenvalues of problems in bounded domains. Various generalizations of the results are discussed, and open questions are formulated.
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页码：633 / 641
页数：8
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