Počet záznamů: 1

Condition number analysis for various forms of block matrix preconditioners

  1. 1.
    0350870 - UGN-S 2011 RIV US eng J - Článek v odborném periodiku
    Axelsson, Owe - Karátson, J.
    Condition number analysis for various forms of block matrix preconditioners.
    Electronic Transactions on Numerical Analysis. Roč. 36, č. 36 (2010), s. 168-194 ISSN 1068-9613
    Grant CEP: GA AV ČR 1ET400300415
    Výzkumný záměr: CEZ:AV0Z30860518
    Klíčová slova: preconditioning * Poincar´e–Steklov operator * strengthened Cauchy-Schwarz-Bunyakowski inequality * approximate block factorization * Schur complement
    Kód oboru RIV: JC - Počítačový hardware a software
    Impakt faktor: 0.579, rok: 2010
    http://etna.mcs.kent.edu/

    Various forms of preconditioners for elliptic finite element matrices are studied, based on suitable block matrix partitionings. Bounds for the resulting condition numbers are given, including a study of sensitivity to jumps in the coefficients and to the constant in the strengthened Cauchy-Schwarz-Bunyakowski inequality.
    Trvalý link: http://hdl.handle.net/11104/0190753