A New Expression of the Hermitian Solutions to a System of Matrix Equations with Applications
Guang‐Jing Song, Shao-Wen Yu, Ming Chen · Algebra Colloquium · 2016
In this paper, a new necessary and sufficient condition for the existence of a Hermitian solution as well as a new expression of the general Hermitian solution to the system of matrix equations A1X=C1 and A3XB3=C3 are derived. The max-min ranks and inertias of these Hermitian solutions with some interesting applications are shown. In particular, the max-min ranks and inertias of the Hermitian part of the general solution to this system are presented.