Goldstein, Charles I. A finite element method for solving Helmholtz type equations in waveguides and other unbounded domains. (English) Zbl 0493.65046 Math. Comput. 39, 309-324 (1982). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Cited in 61 Documents MSC: 65N30 Finite element, Rayleigh-Ritz and Galerkin methods for boundary value problems involving PDEs 65N15 Error bounds for boundary value problems involving PDEs 65Z05 Applications to the sciences 35J05 Laplace operator, Helmholtz equation (reduced wave equation), Poisson equation 35P25 Scattering theory for PDEs Keywords:finite element method; Helmholtz type equations; waveguides; propagation of acoustic waves; Sommerfeld radiation condition; optimal error estimates PDFBibTeX XMLCite \textit{C. I. Goldstein}, Math. Comput. 39, 309--324 (1982; Zbl 0493.65046) Full Text: DOI