The (2,2,0) group inverse problem

Block generalized inverses

Robert E. Hartwig · Archive for Rational Mechanics and Analysis · 1976 · 190 citations

The group inverse of a companion matrix

Roland Puystjens, R. E. Hartwig · Linear and Multilinear Algebra · 1997 · 53 citations

Natural Sciences, Computer Systems, Algebra +4

Group inverse for a class block matrices over skew fields

Changjiang Bu, Jiemei Zhao, Jinshan Zheng · Applied Mathematics and Computation · 2008 · 39 citations

Natural Sciences, Architectural Representation, Representation Theory +8

About the von Neumann regularity of triangular block matrices

Pedro Patrı́cio, Roland Puystjens · Linear Algebra and its Applications · 2001 · 26 citations · Full text

Natural Sciences, Mathematics, Representation Theory +7