Anisotropic nonconforming Crouzeix-Raviart type FEM forsecond-order elliptic problems  

作　　者：石东洋 许超 

机构地区：[1]Department of Mathematics,Zhengzhou University [2]Department of Mathematics and Physics,Luoyang Institute of Science and Technology

出　　处：《Applied Mathematics and Mechanics(English Edition)》2012年第2期243-252,共10页应用数学和力学（英文版）

基　　金：supported by the National Natural Science Foundation of China (No. 10971203)

摘　　要：The nonconforming Crouzeix-Raviart type linear triangular finite element approximate to second-order elliptic problems is studied on anisotropic general triangular meshes in 2D satisfying the maximal angle condition and the coordinate system condition. The optimal-order error estimates of the broken energy norm and L2-norm are obtained.The nonconforming Crouzeix-Raviart type linear triangular finite element approximate to second-order elliptic problems is studied on anisotropic general triangular meshes in 2D satisfying the maximal angle condition and the coordinate system condition. The optimal-order error estimates of the broken energy norm and L2-norm are obtained.

关 键 词：nonconforming finite element elliptic problem anisotropic mesh 

分 类 号：O241.82[理学—计算数学]