Generalized inverses of matrices: a perspective of the work of Penrose
Adi Ben-Israel · Mathematical Proceedings of the Cambridge Philosophical Society · 1986
As a mathematical areageneralized inversion1was inaugurated in 1955 by R. Penrose [128]. Since then there have appeared about 2000 articles and 15 books2on generalized inverses of matrices and linear operators. See the annotated bibliography by Nashed and Rall [121] for the period up to 1976.