On the Singular Values of a Product of Operators
- 1 April 1990
- journal article
- Published by Society for Industrial & Applied Mathematics (SIAM) in SIAM Journal on Matrix Analysis and Applications
- Vol. 11 (2) , 272-277
- https://doi.org/10.1137/0611018
Abstract
For compact Hilbert space operators A and B, the singular values of $A^ * B$ are shown to be dominated by those of $\frac{1}{2}(AA^* + BB^* )$.
Keywords
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