A Symmetric Finite Volume Element Scheme on Quadrilateral Grids and Superconvergence
نویسندگان
چکیده
A symmetric finite volume element scheme on quadrilateral grids is established for a class of elliptic problems. The asymptotic error expansion of finite volume element approximation is obtained under rectangle grids, which in turn yields the error estimates and superconvergence of the averaged derivatives. Numerical examples confirm our theoretical analysis.
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