A combination of spectral and finite elements for an exterior problem in the plane

Authors:
Salim Meddahi;Antonio Márquez
Affiliations:
Departamento de Matemáticas, Universidad de Oviedo, Calvo Sotelo s/n, 33007 Oviedo, Spain;Departamento de Construcción, Universidad de Oviedo, Campus de Viesques, 33203 Gijón, Spain
Venue:
Applied Numerical Mathematics
Year:
2002

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Abstract

A postprocessing technique to improve the accuracy of Galerkin methods, when applied to dissipative partial differential equations, is examined in the particular case of very smooth solutions. Pseudospectral methods are shown to perform poorly. This ...