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- W2953018117 abstract "Let $A, B$ be $ntimes n$ positive semidefinite matrices. Bhatia and Kittaneh asked whether it is true $$ sqrt{sigma_j(AB)}le frac{1}{2} lambda_j(A+B), qquad j=1, ldots, n$$ where $sigma_j(cdot)$, $lambda_j(cdot)$, are the $j$-th largest singular value, eigenvalue, respectively. The question was recently solved by Drury in the affirmative. This article revisits Drury's solution. In particular, we simplify the proof for a key auxiliary result in his solution." @default.
- W2953018117 created "2019-06-27" @default.
- W2953018117 creator A5079295723 @default.
- W2953018117 date "2016-01-21" @default.
- W2953018117 modified "2023-10-17" @default.
- W2953018117 title "On Drury's solution of Bhatia & Kittaneh's question" @default.
- W2953018117 cites W1016532093 @default.
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- W2953018117 doi "https://doi.org/10.48550/arxiv.1601.05525" @default.
- W2953018117 hasPublicationYear "2016" @default.
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