On group inverses and the sharp order

Generalized Inverse of Matrices and Its Applications

K. S. Banerjee · Technometrics · 1973 · 2.3K citations

Mathematical Programming, Spectral Theory, Generalized Inverse +5

Generalized Inverse of Matrices and its Applications

Alan J. Mayne · Journal of the Operational Research Society · 1972 · 1.2K citations

The natural partial order on a regular semigroup

K. S. S. Nambooripad · Proceedings of the Edinburgh Mathematical Society · 1980 · 265 citations · Full text

Topological Semigroups, Order Theory, Ordered Group +4

Natural structures on semigroups with involution

Michael P. Drazin · Bulletin of the American Mathematical Society · 1978 · 218 citations · Full text

Topological Semigroups, Natural Structures, Representation Theory +2

On the group-inverse of a linear transformation

P. C. Robert · Journal of Mathematical Analysis and Applications · 1968 · 75 citations

Representation Theory, Group Theory (Counseling Psychology), Linear Transformation +4