Computable bounds for eigenvalues and eigenfunctions of elliptic differential operators (Q1114360)
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scientific article; zbMATH DE number 4082898
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | Computable bounds for eigenvalues and eigenfunctions of elliptic differential operators |
scientific article; zbMATH DE number 4082898 |
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Computable bounds for eigenvalues and eigenfunctions of elliptic differential operators (English)
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1988
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Given an approximate eigenfunction for a self-adjoint operator not necessarily lying in its domain, bounds for an eigenvalue and eigenfunction are given. The method is applied to the L-shaped membrane. Some of the results were published twenty years ago and a search of the scientific citation index (or of the Zentralblatt (MATH database)) would have yielded some of these omitted references.
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elliptic differential operators
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eigenvalue bounds
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self-adjoint operator
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eigenfunction
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