Superconvergence analysis of lower order anisotropic finite element

被引：0

作者：

朱国庆

石东洋

陈绍春

机构：

[1] P.R.China

[2] Department of Mathematics Zhengzhou University Zhengzhou 450052

来源：

Applied Mathematics and Mechanics(English Edition) | 2007年 / 08期

基金：

中国国家自然科学基金;

关键词：

nonconforming finite element; anisotropic; error estimate; interpolation postprocessing; superconvergence;

D O I：

暂无

中图分类号：

O242.21 [];

学科分类号：

070102 ;

摘要：

The convergence analysis of the lower order nonconforming element pro- posed by Park and Sheen is applied to the second-order elliptic problem under anisotropic meshes.The corresponding error estimation is obtained.Moreover,by using the interpo- lation postprocessing technique,a global superconvergence property for the discretization error of the postprocessed discrete solution to the solution itself is derived.Numerical results are also given to verify the theoretical analysis.

引用

页码：1119 / 1130

页数：12