On different finite element methods for approximating the gradient of the solution to the Helmholtz equation

DOI10.1016/0045-7825(84)90022-7zbMath0574.65123OpenAlexW2063786666WikidataQ109655002 ScholiaQ109655002MaRDI QIDQ1063409

Jaroslav Haslinger, Pekka Neittaanmäki

Publication date: 1984

Published in: Computer Methods in Applied Mechanics and Engineering (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1016/0045-7825(84)90022-7

zbMATH Keywords

computational complexityfinite element methodsgradientHelmholtz equationRitz-Galerkin methodasymptotic error estimatesTest examples

Mathematics Subject Classification ID

Error bounds for boundary value problems involving PDEs (65N15) Finite element, Rayleigh-Ritz and Galerkin methods for boundary value problems involving PDEs (65N30) Laplace operator, Helmholtz equation (reduced wave equation), Poisson equation (35J05)

Related Items

Solution of Helmholtz equation by differential quadrature method, Error estimates for least-squares mixed finite elements, Finite element approximation for a div-rot system with mixed boundary conditions in non-smooth plane domains, Local error estimation and adaptive remeshing scheme for least-squares mixed finite elements, A least-squares finite element method for the Helmholtz equation

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