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Inequalities on 2 × 2 block positive semidefinite matrices.

Authors :
Fu, Xiaohui
Lau, Pan-Shun
Tam, Tin-Yau
Source :
Linear & Multilinear Algebra; Dec2022, Vol. 70 Issue 21, p6820-6829, 10p
Publication Year :
2022

Abstract

We obtain two matrix inequalities on the off-diagonal block of 2 × 2 block positive semidefinite matrices and the geometric mean of its diagonal blocks. They improve some results of Lee [Linear Algebra Appl. 2015:486;449–453] and extend some inequalities of Fujimoto and Seo [Linear Multilinear Algebra. 2018:66;1564–1577]. Applications to sector matrices are given. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
03081087
Volume :
70
Issue :
21
Database :
Complementary Index
Journal :
Linear & Multilinear Algebra
Publication Type :
Academic Journal
Accession number :
162841269
Full Text :
https://doi.org/10.1080/03081087.2021.1969327