基于Crouzeix-Raviart元的有限体积法后验误差估计  

A posteriori error estimates for a finite volume discretization based on Crouzeix-Raviart element

作　　者：徐静[1] 

机构地区：[1]扬州工业职业技术学院,江苏扬州225000

出　　处：《高师理科学刊》2007年第6期11-14,共4页Journal of Science of Teachers＇College and University

摘　　要：给出了二阶椭圆型方程的非协调有限体积法的后验误差估计.该估计是在分片线性的Crouzeix-Raviart元上得到的,并给出了梯度误差的上下界,由Aubin-Nitsche技巧得到了L2误差估计.Focused on a posteriori error estimates for a finite volume discretization of an elliptic problem. It is done on Crouzeix-Raviart element and given both upper and lower bounds of the H1 error, from Aubin-Nitsche method L2error estimates are also obtained.

关 键 词：有限体积 CrouzeLx-Raviart元 后验误差估计 

分 类 号：O241.8[理学—计算数学]