Perturbation of semi-Browder operators and stability of Browder's essential defect and approximate point spectrum (Q936589)
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scientific article; zbMATH DE number 5312272
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | Perturbation of semi-Browder operators and stability of Browder's essential defect and approximate point spectrum |
scientific article; zbMATH DE number 5312272 |
Statements
Perturbation of semi-Browder operators and stability of Browder's essential defect and approximate point spectrum (English)
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14 August 2008
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The authors investigate the stability of closed densely defined semi-Browder operators on a reflexive Banach space under a perturbation class related to compact operators. Then they apply these results to study and characterize the stability of Browder's essential approximate point spectrum and Browder's essential defect spectrum.
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semi-Browder operators
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Browder's essential approximate point spectrum
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Browder's essential defect spectrum
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