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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.

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