Preconditioning by approximations of the Gram matrix for convection-diffusion equations

DOI10.1016/S0378-4754(98)00156-6zbMath0930.65028MaRDI QIDQ1300469

Gheorghe Juncu, Constantin Popa

Publication date: 9 February 2000

Published in: Mathematics and Computers in Simulation (Search for Journal in Brave)

zbMATH Keywords

performancenumerical experimentspreconditioningiterative algorithmsfinite element methodsmultigridconvection-diffusion equationsincomplete Choleskyconjugate gradient algorithmsGram matrix approximations

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)

Related Items

Preconditioning by approximations of the discrete Laplacian for 2‐D non‐linear free convection elliptic equations, Preconditioning by gram matrix approximation for diffusion-convection-reaction equations with discontinuous coefficients

Uses Software

• CGS

Cites Work

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• A class of first order factorization methods
• Iterative Schemes for Nonsymmetric and Indefinite Elliptic Boundary Value Problems
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• Mesh independence of galerkin approach by preconditioning
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• Preconditioning conjugate gradient method for nonsymmetric systems
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