Error analysis for a Galerkin-spectral method with coordinate transformation for solving singularly perturbed problems
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2020, Journal of Computational PhysicsCitation Excerpt :In this way, one may achieve accurate numerical solutions. Nevertheless, such coordinate transformations typically introduce new terms that require additional care and also extra computational costs; see e.g. [44–48]. The enriched spectral method (ESM) proposed in this article does not rely on such a coordinate transformation nor mesh refinement whatsoever.
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