Analysis of extrapolation cascadic multigrid method (EXCMG)

Analysis of extrapolation cascadic multigrid method (EXCMG)
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DOI：
10.1007/s11425-008-0119-7
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发表时间：
2008-07
期刊：
Science in China Series A: Mathematics
影响因子：
--
通讯作者：
Chuanmiao Chen;Hongling Hu;Ziqing Xie;Chen-liang Li
Chuanmiao Chen;Hongling Hu;Ziqing Xie;Chen-liang Li
中科院分区：
其他
文献类型：
--
作者：
Chuanmiao Chen;Hongling Hu;Ziqing Xie;Chen-liang Li

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Based on an asymptotic expansion of finite element, a new extrapolation formula and extrapolation cascadic multigrid method (EXCMG) are proposed, in which the new extrapolation and quadratic interpolation are used to provide a better initial value on refined grid. In the case of triple grids, the error of the new initial value is analyzed in detail. A larger scale computation is completed in PC.