Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/63884
 Title: L2 error estimates for a class of any order finite volume schemes over quadrilateral meshes Authors: Lin, Y Yang, MZou, Q Keywords: Elliptic problemsFinite volume methodsGauss quadratureHigh orderL2 error estimateQuadrilateral meshes Issue Date: 2015 Publisher: Society for Industrial and Applied Mathematics Source: SIAM journal on numerical analysis, 2015, v. 53, no. 4, p. 2030-2050 How to cite? Journal: SIAM journal on numerical analysis Abstract: In this paper, we propose a unified $L^2$ error estimate for a class of bi-$r$ finite volume (FV) schemes on a quadrilateral mesh for elliptic equations, where $r\ge 1$ is arbitrary. The main result is to show that the FV solution possesses the optimal order $L^2$ error provided that $(u,f) \in H^{r+1} \times H^r$, where $u$ is the exact solution and $f$ is the source term of the elliptic equation. Our analysis includes two basic ideas: (1) By the Aubin--Nistche technique, the $L^2$ error estimate of an FV scheme can be reduced to the analysis of the difference of bilinear forms and right-hand sides between the FV and its corresponding finite element (FE) equations, respectively; (2) with the help of a special transfer operator from the trial to test space, the difference between the FV and FE equations can be estimated through analyzing the effect of some Gauss quadrature. Numerical experiments are given to demonstrate the proved results. URI: http://hdl.handle.net/10397/63884 ISSN: 0036-1429 (print)1095-7170 (online) DOI: 10.1137/140963121 Appears in Collections: Journal/Magazine Article

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