Unitary-triangular factorizations of a normal matrix (Q1323937)
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scientific article; zbMATH DE number 584152
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | Unitary-triangular factorizations of a normal matrix |
scientific article; zbMATH DE number 584152 |
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Unitary-triangular factorizations of a normal matrix (English)
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6 July 1994
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Let \(A=QR\) where \(Q\) is unitary and \(R\) is upper triangular. It is shown that \(A\) is normal if and only if there are unitary matrices \(U\) and \(V\) such that both \(UQV\) and \(UR^*V\) are diagonal.
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unitary-triangular factorization
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\(QR\)-factorization
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normal matrix
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