摘要
The main aim of this paper is to study the convergence of biquadratic finite element tor the second order problem on anisotropic meshes. By using some novel approaches and techniques, the optimal error estimates are obtuined. At the same time, the anisotropic superclose results are also achieved. Furthermore, the numerical results are given to demonstrate our theoretical analysis.
基金
The research is supported by National Science Foundation of China under Grant No.10371113
Foundation of Overseas Scholar of China under Grant No.(2002)119
the Project of the Creative Engineering of Henan Province of China.
