$H^1$-Superconvergence of a difference finite element method based on the $P_1-P_1$-conforming element on non-uniform meshes for the 3D Poisson equation
نویسندگان
چکیده
منابع مشابه
Superconvergence analysis of the linear finite element method and a gradient recovery postprocessing on anisotropic meshes
For the linear finite element method based on general unstructured anisotropic meshes in two dimensions, we establish the superconvergence in energy norm of the finite element solution to the interpolation of the exact solution for elliptic problems. We also prove the superconvergence of the postprocessing process based on the global L2-projection of the gradient of the finite element solution....
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ژورنال
عنوان ژورنال: Mathematics of Computation
سال: 2017
ISSN: 0025-5718,1088-6842
DOI: 10.1090/mcom/3266