Mathematical Inequalities & Applications · Volume 16, Issue 2 Corach-Porta-Recht inequality for closed range operators 16-34 Pages 477-481 DOI 10.7153/mia-16-34 Downloads Short PDF Full PDF PNG Authors Maryam Khosravi Keywords Moore-Penrose inverse operator inequality closed range operators self-adjoint operators Subject classes 47A30 15A09 47B15