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A recursive parametrization of unitary matrices. (English) Zbl 1111.15027
Summary: A simple recursive scheme for parametrization of \(n\)-by-\(n\) unitary matrices is presented. The \(n\)-by-\(n\) matrix is expressed as a product containing the \((n-1)\)-by-\((n-1)\) matrix and a unitary matrix that contains the additional parameters needed to go from \(n-1\) to \(n\). The procedure is repeated to obtain recursion formulas for \(n\)-by-\(n\) unitary matrices.

15A99 Basic linear algebra
Full Text: DOI arXiv
[1] DOI: 10.2307/1968551 · Zbl 0020.29601
[2] DOI: 10.2307/1968551 · Zbl 0020.29601
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