Absence of eigenvalues of the acoustic propagator in deformed wave guides (Q1111420)
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scientific article; zbMATH DE number 4074715
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | Absence of eigenvalues of the acoustic propagator in deformed wave guides |
scientific article; zbMATH DE number 4074715 |
Statements
Absence of eigenvalues of the acoustic propagator in deformed wave guides (English)
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1988
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With the help of Fourier transformation and the elementary techniques in O.D.E., by using the limiting absorption principle of a related problem the author proves, under certain conditions, that the acoustic propagator for deformed wave guide has no positive eigenvalues.
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Fourier transformation
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limiting absorption principle
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acoustic propagator
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eigenvalues
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0.8711349
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0.8629452
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0.8493638
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0.84758556
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0.8470814
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0.84457266
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0.8444013
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