Analysis of two-grid method for semi-linear elliptic equations by new mixed finite element scheme
Analysis of two-grid method for semi-linear elliptic equations by new mixed finite element scheme
复制标题
新混合有限元格式分析半线性椭圆方程的二网格法
DOI:
10.1016/j.amc.2012.10.108
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发表时间:
2013
影响因子:
4
通讯作者:
Zhai, Shuying
中科院分区:
文献类型:
--
作者:
Weng, Zhifeng;Feng, Xinlong;Zhai, Shuying
This article considers two-grid stable mixed finite element method based on the less regularity of flux (velocity) in practice for the semi-linear elliptic equations approximated by the P0-P1(velocity–pressure) pair which satisfies the inf-sup condition. This method involves solving a small semi-linear system on a coarse mesh with mesh size H and a linear system problem on a fine mesh with mesh size H=O(h), which can still maintain the asymptotically optimal accuracy. It provides an approximate solution with the convergence rate of the same order as the usual mixed finite element solution solving the semi-linear elliptic equations on a fine mesh. Hence, The two-grid scheme can reduce the computational cost. Finally, numerical tests confirm the theoretical results of the present method.
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影响因子:
2.1
作者:
F. Brezzi;J. Douglas;R. Durán;M. Fortin
通讯作者:
F. Brezzi;J. Douglas;R. Durán;M. Fortin
DOI:
10.1002/(sici)1098-2426(199601)12:1
发表时间:
1996
影响因子:
3.9
作者:
Mi-Young Kim
通讯作者:
Mi-Young Kim
影响因子:
2.9
作者:
Eun‐Jae Park
通讯作者:
Eun‐Jae Park
DOI:
10.1016/j.amc.2011.12.051
发表时间:
2010-11
期刊:
Appl. Math. Comput.
影响因子:
--
作者:
J. D. Frutos;B. García-Archilla;J. Novo
通讯作者:
J. D. Frutos;B. García-Archilla;J. Novo
影响因子:
4
作者:
LAYTON, W;LENFERINK, W
通讯作者:
LENFERINK, W