The least-squares solutions of matrix equation (AX AT , BX BT) = (C, D) over bisymmetric matrices
Yan-Ping Sheng, Ru Tian · 2009
The solutions and least-square solutions of matrix equation (AX AT, BX BT) = (C, D) over bisymmetric matrices are considered. Necessary and sufficient conditions for the existence of the solutions, the general forms of the solutions and the least-squares solutions are derived.