摘要
研究具有各向异性特征的双二次元对抛物积分微分方程进行了逼近.通过采用积分恒等式和插值后处理技术,在各向异性网格下得到了比以往文献高一阶的超逼近和超收敛结果.
The approximation of the parabolic integro-differential equations is studied with anisotropic biquadratic finite element.By means of integral identities and a post-processing technique,one order higher superclose and superconvergence results than that of previous literature are obtained.
出处
《河南科学》
2007年第5期689-692,共4页
Henan Science
基金
国家自然科学基金资助项目(10671184)
河南省创新人才培养工程基金(2002-219)
关键词
抛物积分微分方程
各向异性元
超逼近及超收敛
parabolic integro-differential equation
anisotropic element
superclose and superconvergence
