1958/08/01 by M. P. Drazin, Michael P. Drazin · 29 citations
Computer Science · Mathematics · #Matrix Theory and Algorithms #Advanced Topics in Algebra #Rings, Modules, and Algebras
paper · doi:10.1080/00029890.1958.11991949
(1958). Pseudo-Inverses in Associative Rings and Semigroups. The American Mathematical Monthly: Vol. 65, No. 7, pp. 506-514.