Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4627816 | Applied Mathematics and Computation | 2014 | 7 Pages |
Abstract
A new meaningful structured matrix—(P,Q)(P,Q)-reflexive matrix is defined. Without the common assumption that P or Q is unitary, a general solution is derived for its structured least-squares problem. As a necessary and sufficient condition being presented for the solvability of its structured inverse eigenvalue problem, structured constrains are firstly given to guarantee the existence of the solution. The optimal approximation problem is also considered under spectral constrains.
Related Topics
Physical Sciences and Engineering
Mathematics
Applied Mathematics
Authors
Meixiang Zhao, Zhigang Jia,