Mwanzia, J. M.Kavila, M.Khalagai, J. M.2023-07-252023-07-252022-10Mwanzia, J. M., Kavila, M., & Khalagai, J. M. (2022). Moore-Penrose inverse of linear operators in Hilbert space. African Journal of Mathematics and Computer Science Research, 15(2), 5-13.2006-9731http://ir-library.ku.ac.ke/handle/123456789/26398articleIn this paper, we investigate properties of with closed range satisfying the operator equationsenMoore-Penrose inverseperturbed linear operatorinvertibility of operatorsArticle