摘要
探讨泊松方程高次三角形有限元外推公式.为此先推导离散格林函数的权模估计和有限元解的渐近不等式展开,然后给出公式的证明.
This paper discusses the extrapolation formulas for the higher order triangular finite elements of Poisson equation. For this, we derive the weighted estimates for discreet Green function and the asymptotic error expansion inequalities, and then the proofs of the formulas are given.
出处
《数学的实践与认识》
CSCD
北大核心
2008年第5期99-106,共8页
Mathematics in Practice and Theory
基金
河北省自然科学基金研究专项资助项目(07M002)
国家基础研究项目(2005CB321701
K51J012716
K1510412S1)
关键词
权模估计
渐近不等式展开
有限元外推
weighted estimates
asymptotic inequality expansions
finite element extrapolations