Invertibility of a linear combination of two matrices and partial orderings

Matrix analysis and applied linear algebra

Choice Reviews Online · 2001 · 3.4K citations

Natural Sciences, Mathematics, Applied Mathematics +14

The natural partial order on a regular semigroup

K. S. S. Nambooripad · Proceedings of the Edinburgh Mathematical Society · 1980 · 270 citations · Full text

Natural Sciences, Mathematics, Algebra +7

Natural structures on semigroups with involution

Michael P. Drazin · Bulletin of the American Mathematical Society · 1978 · 219 citations · Full text

Natural Sciences, Mathematics, Set Theory +3

On group inverses and the sharp order

Sujit Kumar Mitra · Linear Algebra and its Applications · 1987 · 108 citations

Natural Sciences, Mathematics, Algebra +11

Relative hermitian matrices

Magnus R. Hestenes · Pacific Journal of Mathematics · 1961 · 96 citations · Full text