Title
Finite iterative algorithm for the symmetric periodic least squares solutions of a class of periodic Sylvester matrix equations
Abstract
The present work proposes a finite iterative algorithm to find the least squares solutions of periodic matrix equations over symmetric ξ-periodic matrices. By this algorithm, for any initial symmetric ξ-periodic matrices, the solution group can be obtained in finite iterative steps in the absence of round-off errors, and the solution group with least Frobenius norm can be obtained by choosing a special kind of initial matrices. Furthermore, in the solution set of the above problem, the unique optimal approximation solution group to a given matrix group in the Frobenius norm can be derived by finding the least Frobenius norm symmetric ξ-periodic solution of a new corresponding minimum Frobenius norm problem. Finally, numerical examples are provided to illustrate the efficiency of the proposed algorithm and testify the conclusions suggested in this paper.
Year
DOI
Venue
2019
10.1007/s11075-018-0553-8
Numerical Algorithms
Keywords
Field
DocType
Periodic matrix equations, Iterative algorithm, Symmetric ξ-periodic solution, Least Frobenius norm, Finite number of iterations, Optimal approximation solution
Least squares,Applied mathematics,Matrix (mathematics),Mathematical analysis,Iterative method,Matrix norm,Solution set,Sylvester matrix,Periodic graph (geometry),Mathematics,Matrix group
Journal
Volume
Issue
ISSN
81.0
1
1572-9265
Citations 
PageRank 
References 
0
0.34
17
Authors
2
Name
Order
Citations
PageRank
Bao-Hua Huang1125.68
Changfeng Ma210016.25