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scientific article; zbMATH DE number 4123368
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | No label defined |
scientific article; zbMATH DE number 4123368 |
Statements
1989
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three-dimensional unbounded medium
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invariant under translation in one space direction
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homogeneous at infinity
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existence of eigenvalues embedded in its continuous spectrum
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selfadjoint operator
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