A modified modulus-based multigrid method for linear complementarity problems arising from free boundary problems
A modified modulus-based multigrid method for linear complementarity problems arising from free boundary problems
复制标题
一种修正的基于模数的多重网格方法,用于解决由自由边界问题引起的线性互补问题
DOI:
10.1016/j.apnum.2020.09.008
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发表时间:
2020-09
影响因子:
2.8
通讯作者:
Zhiru Ren
中科院分区:
文献类型:
--
作者:
Lili Zhang;Zhiru Ren
The linear complementarity problem arising from a free boundary problem can be equivalently reformulated as a fixed-point equation. We present a modified modulus-based multigrid method to solve this fixed-point equation. This modified method is a full approximation scheme using the modulus-based splitting iteration method as the smoother and avoids the transformation between the auxiliary and the original functions which was necessary in the existing modulus-based multigrid method. We predict its asymptotic convergence factor by applying local Fourier analysis to the corresponding two-grid case. Numerical results show that the W-cycle possesses anh-independent convergence rate and a linear elapsed CPU time, and the convergence rate of the V-cycle can be improved by increasing the smoothing steps. Compared with the existing modulus-based multigrid method, the modified method is more straightforward and is a standard full approximation scheme, which makes it more convenient and efficient in practical applications.
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DOI:
10.1007/978-0-387-74759-0_333
发表时间:
2009
期刊:
--
影响因子:
--
作者:
R. Cottle
通讯作者:
R. Cottle
影响因子:
2.9
作者:
A. Brandt
通讯作者:
A. Brandt
影响因子:
4.3
作者:
Dong, Jun-Liang;Jiang, Mei-Qun
通讯作者:
Jiang, Mei-Qun
影响因子:
2.1
作者:
R. Kornhuber
通讯作者:
R. Kornhuber
影响因子:
2.1
作者:
Bai, Zhong-Zhi;Zhang, Li-Li
通讯作者:
Zhang, Li-Li