| 摘要: |
| 本文研究了正方体区域上Q_1~(rot)非协调元渐近展开式.利用林群、吕涛等提出的有限元误差渐近展开法,获得了正方体区域上Q_1~(rot)非协调元特征值的误差渐近展开式.理论分析和数值实验结果表明三维Q_1~(rot)非协调元特征值外推公式是有效的,可以把特征值的精度从二阶提高到四阶. |
| 关键词: Q_l~(rot)非协调元 特征值 渐近展式 3维Poisson方程 |
| DOI： |
| 分类号: |
| 基金项目:国家自然科学基金资助项目(10761003) |
|
| ASYMPTOTIC EXPANSION AND EXTRAPOLATION OF Q_1~(rot) ELEMENT IN THREE-DIMENSIONAL DOMAIN |
|
REN Shan-jing,YANG Yi-du
|
|
REN Shan-jing~1,YANG Yi-du~2 (1.School of Math.and Comp.Science,Guizhou Normal College,Guiyang 550018,China) (2.School of Math.and Comp.Science,Guizhou Normal University,Guiyang 550001,China)
|
| Abstract: |
|
| Key words: non-conforming Q_1~(rot) element eigenvalue asymptotic expansion three-dimensional Poisson equation |
