Two-frequency decomposition

DOI10.1007/s00211-003-0459-8zbMath1066.65049OpenAlexW2043210746MaRDI QIDQ1889906

Gabriel Wittum, A. A. Buzdin

Publication date: 13 December 2004

Published in: Numerische Mathematik (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1007/s00211-003-0459-8

zbMATH Keywords

convergencenumerical resultsiterative methodconjugate gradient methodPoisson equationpreconditionerblock tridiagonal linear systemsfiltering decompositions

Mathematics Subject Classification ID

Computational methods for sparse matrices (65F50) Iterative numerical methods for linear systems (65F10) Numerical computation of matrix norms, conditioning, scaling (65F35) Laplace operator, Helmholtz equation (reduced wave equation), Poisson equation (35J05) Finite difference methods for boundary value problems involving PDEs (65N06)

Related Items (6)

Two sides tangential filtering decomposition ⋮ IBLU decompositions based on Padé approximants ⋮ Fourier analysis of frequency filtering decomposition preconditioners ⋮ Modified tangential frequency filtering decomposition and its Fourier analysis ⋮ On relaxed nested factorization and combination preconditioning ⋮ A twisted block tangential filtering decomposition preconditioner

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