期刊信息
![](/web/statics/zr_qikan_img.jpg)
- 刊名: 河北师范大学学报(自然科学版)Journal of Hebei Normal University (Natural Science)
- 主办: 河北师范大学
- ISSN: 1000-5854
- CN: 13-1061/N
- 中国科技核心期刊
- 中国期刊方阵入选期刊
- 中国高校优秀科技期刊
- 华北优秀期刊
- 河北省优秀科技期刊
A Class of Crouzeix-Raviart Finite Element Method for Nonstationary Equation
摘要/Abstract
摘要:
传统有限元方法要求区域剖分满足正则性条件.对一类非稳态方程,首先利用相应的Crouzeix-Raviart型元,绕开区域剖分中正则性条件的限制,导出所讨论问题的全离散格式;其次,利用Riesz投影算子,通过一些新的技巧和方法,得到最优误差估计.
Abstract:
The classial finite element method needs the meshes of triangulation satisfying the regular assumption.Firstly,by using Crouzeix-Raviart finite element,nonstationary equations are studied without the regular assumption on meshes.At the same time,anisotropic element approximate scherne are given;Secondly,by means of Riesz projection operator and some new approaches,the optimal error estimate can be obtained.