\(M\)-matrix generalized inverses of \(M\)-matrices
The condition when the group inverse of the associated singular irreducible \(M\)-matrix corresponding to a nonnegative, irreducible and stochastic matrix will be an \(M\)-matrix is that this matrix lies in a small wedge about a rank one nonnegative matrix.
scientific article; zbMATH DE number 1011349
scientific article