Title
(R,S)-conjugate solution to a pair of linear matrix equations
Abstract
Let R and S be m×m and n×n nontrivial real symmetric involutions. An m×n complex matrix A is termed (R,S)-conjugate if A¯=RAS, where A¯ denotes the conjugate of A. In this paper, necessary and sufficient conditions are established for the existence of the (R,S)-conjugate solution to the system of matrix equations AX=C and XB=D. The expression is also presented for such solution to this system. In addition, the explicit expression of this solution to the corresponding optimal approximation problem is obtained. Furthermore, the least squares (R,S)-conjugate solution with least norm to this system mentioned above is considered. The representation of such solution is also derived. Finally an algorithm and numerical examples are given.
Year
DOI
Venue
2010
10.1016/j.amc.2010.04.053
Applied Mathematics and Computation
Keywords
Field
DocType
Matrix equation,(R,S)-conjugate matrix,Approximation problem,Least squares solution
Least squares,Complex matrix,Linear equation,Transcendental equation,Matrix (mathematics),Mathematical analysis,Algebraic equation,Conjugate,Numerical analysis,Mathematics
Journal
Volume
Issue
ISSN
217
1
0096-3003
Citations 
PageRank 
References 
2
0.46
6
Authors
3
Name
Order
Citations
PageRank
Hai-Xia Chang1383.72
Qing-Wen Wang217026.94
Guang-Jing Song3457.06