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Proceedings of the American Mathematical Society
Proceedings of the American Mathematical Society
ISSN 1088-6826(online) ISSN 0002-9939(print)

 

Products of positive operators


Author: Gerard J. Murphy
Journal: Proc. Amer. Math. Soc. 125 (1997), 3675-3677
MSC (1991): Primary 46L05, 47A65
MathSciNet review: 1415356
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Abstract: A new, very simple proof is given of a result of P. Y. Wu which asserts that every unitary operator on an infinite-dimensional Hilbert space is a product of positive operators.


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Additional Information

Gerard J. Murphy
Affiliation: Department of Mathematics, University College, Cork, Ireland
Email: gjm@ucc.ie

DOI: http://dx.doi.org/10.1090/S0002-9939-97-04019-7
PII: S 0002-9939(97)04019-7
Received by editor(s): March 29, 1996
Received by editor(s) in revised form: July 22, 1996
Communicated by: Palle E. T. Jorgensen
Article copyright: © Copyright 1997 American Mathematical Society