摘要
本文研究具有各向异性特征的双二次元对二阶抛物方程的逼近.通过积分恒等式和插值后处理技术,在各向异性网格下得到了相应的超逼近和超收敛结果.
In this paper,the approximation of the second order parabolic equation is studied with the anisotropic biquadratic element. By means of integral identities techniques and a postprocessing technique, the superclose property and superconvergence are obtained on anisotrophic meshes.
出处
《应用数学》
CSCD
北大核心
2007年第4期659-665,共7页
Mathematica Applicata
基金
国家自然科学基金资助项目(10371113
10671184)
关键词
二阶抛物方程
各向异性元
超逼近及超收敛
Second order parabolic equation
Anisotropic element
Superclose and super-convergence
