Journal of Mathematical Inequalities · Volume 17, Issue 2 Multiplicative perturbation analysis for the generalized Cholesky block downdating problem 17-34 Pages 531-553 DOI 10.7153/jmi-2023-17-34 Downloads Short PDF Full PDF PNG Authors Mahvish Samar Xinzhong Zhu Keywords generalized Cholesky block downdatig problem multiplicative perturbation rigorous perturbation bounds Lyapunov majorant function Banach fixed point theorem matrix-equation approach Subject classes 15A45 15A23