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Shu-Xin Miao, The semi-convergence of GSI method for singular saddle point problems, Bulletin mathématique de la Société des Sciences Mathématiques de Roumanie, Nouvelle Série, Vol. 57 (105), No. 1 ...
SIAM Journal on Numerical Analysis, Vol. 53, No. 1 (2015), pp. 421-444 (24 pages) We propose a preconditioned version of the Douglas–Rachford splitting method for solving convex-concave saddle-point ...