Some characterizations of Riesz operators by means of invariant subspaces (Q1809697)
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scientific article; zbMATH DE number 1370602
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | Some characterizations of Riesz operators by means of invariant subspaces |
scientific article; zbMATH DE number 1370602 |
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Some characterizations of Riesz operators by means of invariant subspaces (English)
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1999
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Several characterizations of Riesz operators \(T\) on Banach spaces are given by means of some closed \(T\)-invariant subspaces. Also given: \(T\) is a Riesz operator if and only if \(k(\lambda I-T)\) is finite-codimensional for \(\lambda\in\sigma(T)\setminus\{0\}\).
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invariant subspaces
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Riesz operators
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0.91433066
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