On the common point spectrum of pairs of self-adjoint extensions (Q2877336)
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scientific article; zbMATH DE number 6333572
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | On the common point spectrum of pairs of self-adjoint extensions |
scientific article; zbMATH DE number 6333572 |
Statements
21 August 2014
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symmetric operator
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selfadjoint extensions
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singular perturbations
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point spectra
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math-ph
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math.MP
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math.SP
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0.9469389
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0.9003165
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0.89985627
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0.8796576
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0.87519175
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On the common point spectrum of pairs of self-adjoint extensions (English)
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The author studies possible intersections of point spectra of two different selfadjoint extensions of the same symmetric operator. Several examples are considered in detail, including rank one and two singular perturbations, the Šeba billiard, the Laplacian on a bounded interval.
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