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arXiv:2004.07533 [math.FA]AbstractReferencesReviewsResources

Numerical range and positive block matrices

Jean Christophe Bourin, Eun-Young Lee

Published 2020-04-16Version 1

We obtain several norm and eigenvalue inequalities for positive matrices partitioned into four blocks. The results involve the numerical range of the off-diagonal block X, especially the distance from 0 to W(X).

Categories: math.FA
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