A preconditioning technique for indefinite linear systems

DOI10.1016/S0168-874X(97)00084-XzbMath0896.65029MaRDI QIDQ1390837

Petra Poschmann, Louis Komzsik, Ilya Sharapov

Publication date: 22 July 1998

Published in: Finite Elements in Analysis and Design (Search for Journal in Brave)

zbMATH Keywords

numerical examplespreconditioningfinite elementiterative solverconjugate residual methodindefinite systems

Mathematics Subject Classification ID

Finite element methods applied to problems in solid mechanics (74S05) Iterative numerical methods for linear systems (65F10) Numerical computation of matrix norms, conditioning, scaling (65F35)

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Sparse block factorization of saddle point matrices ⋮ Threshold incomplete factorization constraint preconditioners for saddle-point matrices

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