Solving a System of Sylvester-like Quaternion Matrix Equations

Abstract

Using the ranks and Moore-Penrose inverses of involved matrices, in this paper we establish some necessary and sufficient solvability conditions for a system of Sylvester-type quaternion matrix equations, and give an expression of the general solution to the system when it is solvable. As an application of the system, we consider a special symmetry solution, named the η-Hermitian solution, for a system of quaternion matrix equations. Moreover, we present an algorithm and a numerical example to verify the main results of this paper.

Keywords

• Sylvester-type matrix equation
• quaternion matrix
• rank
• Moore-Penrose inverse
• <i>η</i>-Hermitian matrix