SOME NORM INEQUALITIES FOR SOME POSITIVE BLOCK

被引：0

作者：

Mhanna, Antoine

机构：

来源：

MISKOLC MATHEMATICAL NOTES | 2023年 / 24卷 / 01期

关键词：

15A60; 15A42; 15B99; 05A18; SEPARABILITY;

D O I：

10.18514/MMN.2023.3801

中图分类号：

O1 [数学];

学科分类号：

0701 ; 070101 ;

摘要：

We review Lin's inequality of numerical range widths and prove that if M = [X-i,X-j](i,j)(n)=1 is positive semi-definite then circle plus(n)(i=1)(X-i,X-i - Sigma(j not equal i) X-j,X-j) <= M-tau <= I-n circle times Sigma(n)(i=1) X-i,X-i, where M-tau is the partial transpose of M. Some classical results are also discussed in terms of permutations.

引用

页码：301 / 308

页数：8

共 47 条

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