Circulant block-factorization preconditioning of anisotropic elliptic problems

DOI10.1007/BF02684392zbMath0879.65022OpenAlexW1995536130MaRDI QIDQ1362364

I. D. Lirkov, Ludmil T. Zikatanov, Svetozar Margenov

Publication date: 11 December 1997

Published in: Computing (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1007/bf02684392

zbMATH Keywords

finite elementsnumerical examplespreconditioningcondition numberfinite differencessparse linear systemsconjugate gradientssecond-order elliptic boundary value problemscirculant matricesblock-factorization method

Mathematics Subject Classification ID

Boundary value problems for second-order elliptic equations (35J25) Finite element, Rayleigh-Ritz and Galerkin methods for boundary value problems involving PDEs (65N30) Iterative numerical methods for linear systems (65F10) Numerical computation of matrix norms, conditioning, scaling (65F35) Finite difference methods for boundary value problems involving PDEs (65N06)

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