Abstract
Fourier continuation (FC) is an approach used to create periodic extensions of non-periodic functions to obtain highly-accurate Fourier expansions. These methods have been used in partial differential equation (PDE)-solvers and have demonstrated high-order convergence and spectrally accurate dispersion relations in numerical experiments. Discontinuous Galerkin (DG) methods are increasingly used for solving PDEs and, as all Galerkin formulations, come with a strong framework for proving the stability and the convergence. Here we propose the use of FC in forming a new basis for the DG framework.
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This work was supported by the National Science Foundation Grant DMS-1913076. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the National Science Foundation.
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van der Sande, K., Appelö, D. & Albin, N. Fourier Continuation Discontinuous Galerkin Methods for Linear Hyperbolic Problems. Commun. Appl. Math. Comput. 5, 1385–1405 (2023). https://doi.org/10.1007/s42967-022-00205-1
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DOI: https://doi.org/10.1007/s42967-022-00205-1