Essential spectrum of upper triangular operator matrices (Q781722)
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scientific article; zbMATH DE number 7222426
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | Essential spectrum of upper triangular operator matrices |
scientific article; zbMATH DE number 7222426 |
Statements
Essential spectrum of upper triangular operator matrices (English)
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17 July 2020
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left essential spectrum
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right essential spectrum
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essential spectrum
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perturbation theory
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\(n\times n\)
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