采用变网格的思想讨论了抛物问题的Crouzeix-Raviart型非协调三角形有限元方法.在不引入传统分析工具Riesz投影的情况下,得到了相应最优误差估计.另外不需要网格满足正则性条件或拟一致假设.
Crouzeix-Raviart type nonconforming triangular finite element method for parabolic problem with moving grid is proposed. The optimal error estimates are obtained without using the Riesz projection which is the conventional analysis tool. The subdivision does not need to satisfy the regularity condition or quasi-uniform assumption.