Extremal ranks of matrix expression of A − BXC with respect to Hermitian matrix

The extremal ranks of matrix expression of A − BXC with respect to X^H = X have been discussed by applying the quotient singular value decomposition Q-SVD and some rank equalities of matrices in this paper.     

分块矩阵g-逆的块独立性

本文研究分块矩阵g-逆的块独立性,得到两个和三个复矩阵块独立的充分 必要条件,并揭示了不同定义下的块独立性定义之间的联系.