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scientific article; zbMATH DE number 3250909
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | No label defined |
scientific article; zbMATH DE number 3250909 |
Statements
1966
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selfadjoint operator of elliptic type
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boundary value problem of the second kind
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properties of eigenvalues and eigenfunctions
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nondiscrete spectrum
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