Publisher： Cambridge University Press
E-ISSN： 1755-1633|69|3|369-382
ISSN： 0004-9727
Source： Bulletin of the Australian Mathematical Society, Vol.69, Iss.3, 2004-06, pp. : 369-382
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Abstract
The half-angle formulæ, familiar from trigonometry, can be used to compute the polar decomposition of the operator on
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