摘要
利用ABFr单元在任意四边形网格剖分下依然保持最优收敛阶的特性,研究了Poisson方程的L2投影超收敛方法,给出了取得超收敛结果的最优参数值.
In this paper, the superconvergence of finite element approximation for the Poisson problem by L2 projection is studied with applying properties of ABFr element which still keeps the optimal convergence rate on quadrilateral mesh, as well as the optimal parameters effecting the optimal superconvergence rate are derived.
出处
《河南科学》
2008年第12期1442-1444,共3页
Henan Science
基金
河南省自然科学基金资助项目(0111051200)
河南省农业大学信管学院青年教师资助项目
