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Research article2012Peer reviewedOpen access

SOLVING THE MATRIX INEQUALITY AXB plus (AXB)* >= C

Tian, Yongge; Von Rosen, Dietrich

Abstract

A pair of complex Hermitian matrices A and B of the same size are said to satisfy an inequality A >= B in the Lowner partial ordering if A-B is nonnegative definite. In this note, we first derive the general solutions in closed-form for the linear matrix equation AXB + (AXB)* = C by using generalized inverses of matrices, and then derive general solutions of the linear matrix inequality AXB + (AXB)* >= C when C is a Hermitian nonnegative definite matrix.

Keywords

Linear matrix equation; linear matrix inequality; Lowner partial ordering; general solution; generalized inverses of matrices; rank; inertia

Published in

Mathematical Inequalities and Applications
2012, Volume: 15, number: 3, pages: 537-548
Publisher: ELEMENT

    UKÄ Subject classification

    Algebra and Logic

    Publication identifier

    DOI: https://doi.org/10.7153/mia-15-47

    Permanent link to this page (URI)

    https://res.slu.se/id/publ/45204