Superconvergence Analysis of the Polynomial Preserving Recovery for Elliptic Problems with Robin Boundary Conditions
Superconvergence Analysis of the Polynomial Preserving Recovery for Elliptic Problems with Robin Boundary Conditions
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罗宾边界条件椭圆问题多项式保全恢复的超收敛分析
DOI:
10.4208/jcm.1911-m2018-0176
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发表时间:
2020-06
影响因子:
0.9
通讯作者:
Zhimin Zhang
中科院分区:
文献类型:
--
作者:
Yu Du;Haijun Wu;Zhimin Zhang
We analyze the superconvergence property of the linear finite element method based on the polynomial preserving recovery (PPR) for Robin boundary elliptic problems on triangulartions. First, we improve the convergence rate between the finite element solution and the linear interpolation under the H-norm by introducing a class of meshes satisfying the Condition (α, σ, μ). Then we prove the superconvergence of the recovered gradients post-processed by PPR and define an asymptotically exact a posteriori error estimator. Finally, numerical tests are provided to verify the theoretical findings.
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10.1002/nme.1620330703
发表时间:
1992-05
影响因子:
2.9
作者:
O. Zienkiewicz;J. Z. Zhu
通讯作者:
O. Zienkiewicz;J. Z. Zhu
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--
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2005-04
期刊:
SIAM J. Sci. Comput.
影响因子:
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作者:
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通讯作者:
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DOI:
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发表时间:
2017-03
期刊:
arXiv: Numerical Analysis
影响因子:
--
作者:
Yu Du;Haijun Wu;Zhimin Zhang
通讯作者:
Yu Du;Haijun Wu;Zhimin Zhang
影响因子:
1.8
作者:
Zhimin Zhang
通讯作者:
Zhimin Zhang