Perturbation bounds for the Moore-Penrose inverse of operators
Xiaoji Liu, Yonghui Qin, Dragana S. Cvetković‐Ilić · Filomat · 2012
We consider the perturbation bounds for the Moore-Penrose inverse of a given operator on Hilbert space and apply these results to the relative errors of the minimum norm least squares solution of the equation Ax = b.