ON ALGEBRAIC MULTILEVEL PRECONDITIONING METHODS-中国Betway体育网页登陆

摘要 Inthepresentpaperweextendthemethodpresentedby0.AxelssonandP.VassilevskicalledAMLPversion(i)ofrecursivelyconstructingpreconditionerforthestiffnessmatrixinthediscretizationofselfadjointsecondorderellipticboundaryvalueproblems.Inourextendedmethodthesystemstobeeliminatedoneachlevelcontainingthemajorblockmatricesofthegivenmatrixcanbesolvedapproximately,whiletheymustbesolvedexactlyintheoriginalmethod.

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ON ALGEBRAIC MULTILEVEL PRECONDITIONING METHODS

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