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抛物积分微分问题各向异性有限元的超收敛分析
Superconvergence Analysis for Parabolic Integrodifferential Equation with Anisotropic Finite Element
【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.
【Abstract】 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.
【关键词】 抛物积分微分方程;
各向异性元;
超逼近及超收敛;
【Key words】 parabolic integro-differential equation; anisotropic element; superclose and superconvergence;
【Key words】 parabolic integro-differential equation; anisotropic element; superclose and superconvergence;
【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)
- 【文献出处】 河南科学 ,Henan Science , 编辑部邮箱 ,2007年05期
- 【分类号】O241.4
- 【下载频次】49