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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]
Possibly Related PublicationsThe following publications are possibly variants of this publication: On the update of constraint preconditioners for regularized KKT systemsStefania Bellavia, Valentina de Simone, Daniela di Serafino, Benedetta Morini. coap, 65(2):339-360, 2016. [doi]
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