A classification of accretive matrices with respect to Hermitian congruences (Q1425495)
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scientific article; zbMATH DE number 2061496
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | A classification of accretive matrices with respect to Hermitian congruences |
scientific article; zbMATH DE number 2061496 |
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A classification of accretive matrices with respect to Hermitian congruences (English)
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21 March 2004
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The complex \((n\times n\))-matrix \(A\) is called accretive if the Hermitian matrix \(A+A^*\) is positive semidefinite. The author describes a canonical form of the accretive matrices with respect to the Hermitian congruences. This canonical form is a quasidiagonal matrix, i.e. it is a direct sum of \((1\times 1)\)- and \((2\times 2)\)-blocks.
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Hermitian congruences
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accretive matrices
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