| P_1型非协调有限元解平均梯度超收敛问题 |
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| 引用本文： | 罗平.P_1型非协调有限元解平均梯度超收敛问题[J].怀化学院学报,1991(1). |
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| 作者姓名： | 罗平 |
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| 作者单位： | 怀化师专数学系 |
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| 摘 要： | 本文证明了即使在一致剖分条件下,用P_1型非协调有限元方法求解Possion方程第一边值问题,有限元解的平均梯度与真解梯度的逼近误差,在L~2模的意义下,已无超收敛。
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| 关 键 词： | 有限元 非协调 超收敛 |
Superocnvergence problem for the P_1-nonconforming finite element solvtions averaged gradient |
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| Luo Ping.Superocnvergence problem for the P_1-nonconforming finite element solvtions averaged gradient[J].Journal of Huaihua University,1991(1). |
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| Authors: | Luo Ping |
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| Institution: | Department of Mathemaiics |
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| Abstract: | In this paper, we prove that although the triangulation is uniform meshes when solving possion equation of direchlct problem by the P1-nonconforming finite element method, there are not superconvcrgencc for the convergence rate of the averaged gradient and an exact gradient in the L2-norm. |
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| Keywords: | Finite clement Nonconforming supcrconvergence |
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