这篇论文的主要目的是在各向异性的网孔上为第二个顺序问题学习四乘幂的有限元素的集中。由使用一些新奇途径和技术,最佳的错误估计被获得。同时,各向异性的 supercloseresults 也被完成。而且,数字结果被给表明我们的理论分析。
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.