Weighted quadrature rules for finite element methods

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We discuss the numerical integration of polynomials times non-polynomial weighting functions in two dimensions arising from multiscale finite element computations. The proposed quadrature rules are significantly more accurate than standard quadratures and are better suited to existing finite element codes than formulas computed by symbolic integration. We validate this approach by introducing the new quadrature formulas into a multiscale finite element method for the two-dimensional reaction-diffusion equation. © 2008 Elsevier B.V. All rights reserved.




Oliveira, S. P., Madureira, A. L., & Valentin, F. (2009). Weighted quadrature rules for finite element methods. Journal of Computational and Applied Mathematics, 227(1), 93–101. https://doi.org/10.1016/j.cam.2008.07.007

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