Rank equalities for submatrices in generalized inverse \(M_{T,S}^{(2)}\) of \(M\)
Partitioning a matrix \(M\) into a \(2 \times 2\) block matrix and using the group inverse expressions of the generalized inverse \(M^{(2)}_{TS}\), rank expressions for submatrices in \(M^{(2)}_{TS}\) are developed. Some known important cases are covered with this new result.
scientific article; zbMATH DE number 2081886
scientific article