A Spectral Time-Domain Method for Computational Electrodynamics

James V. Lambers ()
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James V. Lambers: University of Southern Mississippi, Department of Mathematics

A chapter in Numerical Mathematics and Advanced Applications 2009, 2010, pp 561-569 from Springer

Abstract: Abstract Block Krylov subspace spectral (KSS) methods have previously been applied to the variable-coefficient heat equation and wave equation, and have demonstrated high-order accuracy, as well as stability characteristic of implicit time-stepping schemes, even though KSS methods are explicit. KSS methods for scalar equations compute each Fourier coefficient of the solution using techniques developed by Gene Golub and Gérard Meurant for approximating elements of functions of matrices by Gaussian quadrature in the spectral, rather than physical, domain. We show how they can be generalized to non-self-adjoint systems of coupled equations, such as Maxwell’s equations.

Keywords: Wave Equation; Spectral Method; Gaussian Quadrature; Lanczos Algorithm; Cosine Family (search for similar items in EconPapers)
Date: 2010
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Persistent link: https://EconPapers.repec.org/RePEc:spr:sprchp:978-3-642-11795-4_60

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DOI: 10.1007/978-3-642-11795-4_60

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