A Novel Least Squares Method for Helmholtz Equations with Large Wave Numbers
DOI10.1137/19M1294101zbMath1452.65342arXiv1902.01166OpenAlexW3094697463MaRDI QIDQ5134975
Publication date: 18 November 2020
Published in: SIAM Journal on Numerical Analysis (Search for Journal in Brave)
Full work available at URL: https://arxiv.org/abs/1902.01166
error estimatesHelmholtz equationleast squarespreconditionerinhomogeneous mediaRobin-type boundary conditionlarge wave numberauxiliary unknowns
Multigrid methods; domain decomposition for boundary value problems involving PDEs (65N55) Error bounds for boundary value problems involving PDEs (65N15) Finite element, Rayleigh-Ritz and Galerkin methods for boundary value problems involving PDEs (65N30) Iterative numerical methods for linear systems (65F10) Laplace operator, Helmholtz equation (reduced wave equation), Poisson equation (35J05) Parallel numerical computation (65Y05) Preconditioners for iterative methods (65F08)
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