Regularization and preconditioning of KKT systems arising in nonnegative least-squares problems

Stefania Bellavia, Jacek Gondzio, Benedetta Morini. Regularization and preconditioning of KKT systems arising in nonnegative least-squares problems. Numerical Lin. Alg. with Applic., 16(1):39-61, 2009. [doi]

Abstract

Abstract is missing.