机构地区: 河北科技师范学院欧美学院
出 处: 《佳木斯大学学报(自然科学版)》 2009年第6期931-932,939,共3页
摘 要: 研究了一类非线性拟双曲方程的双线性有限元方法.在不引入真解的Ritz-Volterra投影的情况下,应用插值后处理技巧,得到了其半离散格式下的整体超收敛结果. In this paper,the bilinear finite element method for a kind of nonlinear hypobolic equations was discussed.Without referring to the traditional Ritz-Volterra projection of the solution of the problem,the global superconvergence was derived for the semidiscrete scheme's error estimation through postprocessing technology.