scientific article
zbMATH Open0463.65022MaRDI QIDQ3914318
Publication date: 1981
Title of this publication is not available (Why is that?)
numerical experimentspreconditioningfinite elementfinite differencetriangular matricescongruence transformationmethod of conjugate gradientslarge symmetric and positive definite systems
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) Numerical solution of discretized equations for boundary value problems involving PDEs (65N22)
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