On solutions of matrix equation AXB + CYD = F
β Scribed by Guiping Xu; Musheng Wei; Daosheng Zheng
- Publisher
- Elsevier Science
- Year
- 1998
- Tongue
- English
- Weight
- 720 KB
- Volume
- 279
- Category
- Article
- ISSN
- 0024-3795
No coin nor oath required. For personal study only.
β¦ Synopsis
In this Paper, the matrix equation with two unknown matrices X. I' of form AXB + CYD = F is discussed. By applying the canonical correlation decomposition (CCD) of matrix pairs, we obtain expressions of the least-squares solutions of the matrix equation, and sufficient and necessary conditions for the existente and uniqueness of the solutions. We also derive a general form of the solutions. We also study the least-squares Hermitian (skew-Hermitian) solutions of equation AXAH + CYCH = F.
π SIMILAR VOLUMES
## Abstract In this note, a technical error is pointed out in the proof of a lemma in the above paper. A correct proof of this lemma is given. In addition, a further result on the algorithm in the above paper is also given. Copyright Β© 2009 John Wiley & Sons, Ltd.
This paper studies the solutions of complex matrix equations X -AXB = C and X -AXB = C, and obtains explicit solutions of the equations by the method of characteristic polynomial and a method of real representation of a complex matrix respectively.
The conditions for the existence of a unique solution of the matrix equation AXB -CXD = E are proved to be that (i) the pencils A -XC and D -XB are regular, and (ii) the spectra of the pencils have an empty intersection. A numerical algorithm for solving the equation is proposed. The possibility of