Constrained approximation and invariant subspaces (Q1874446)
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scientific article; zbMATH DE number 1915614
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | Constrained approximation and invariant subspaces |
scientific article; zbMATH DE number 1915614 |
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Constrained approximation and invariant subspaces (English)
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25 May 2003
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The authors formulates a constrained approximation problem that includes some special interesting known cases. This enabled the authors to produce hyperinvariant subspaces for operators on Hilbert spaces, which are neither quasinilpotent nor polynomially compact.
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invariant subspace
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constrained approximation
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