Approximation with normal operators with finite spectrum, and an elementary proof of a Brown-Douglas-Fillmore theorem. (Q1858145)
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scientific article; zbMATH DE number 1867909
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | Approximation with normal operators with finite spectrum, and an elementary proof of a Brown-Douglas-Fillmore theorem. |
scientific article; zbMATH DE number 1867909 |
Statements
Approximation with normal operators with finite spectrum, and an elementary proof of a Brown-Douglas-Fillmore theorem. (English)
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12 February 2003
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essentially normal operator
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index function
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approximating normal operators
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