Preconditioning Chebyshev Spectral Collocation by Finite-Difference Operators

DOI10.1137/S0036142995285034zbMath0874.65088MaRDI QIDQ4340796

Sang Dong Kim, Seymour V. Parter

Publication date: 12 June 1997

Published in: SIAM Journal on Numerical Analysis (Search for Journal in Brave)

zbMATH Keywords

preconditioningHelmholtz equationPoisson equationHelmholtz operatorChebyshev spectral collocationfinite difference operator

Mathematics Subject Classification ID

Spectral, collocation and related methods for boundary value problems involving PDEs (65N35) 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)

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