01090nam0-22003251i-450-9900013244604033213-540-53515-2000132446FED01000132446(Aleph)000132446FED0100013244620000920d1990----km-y0itay50------baengPreconditioned Conjugate Gradient MethodsProceedings of a Conference on Preconditional Conjugate Gra dient Methods held in Nijmegen, The Netherlands, June 19-21, 1989O. Axelsson, L. Yu. Kolotilina, editorsBerlinSpringer-Verlagc1990196 p.25 cmLecture Notes in Mathematics1457Algebra lineare numericaCongressiMetodi iterativi per i sistemi lineariCongressi519.4Axelsson,OweITUNINARICAUNIMARCBK990001324460403321C-20-(14577918MA1MA165F10Preconditioned conjugate gradient methods81324UNINAING01