A new alternating positive semidefinite splitting preconditioner for saddle point problems from time-harmonic eddy current models
A new alternating positive semidefinite splitting preconditioner for saddle point problems from time-harmonic eddy current models
复制标题
时谐涡流模型鞍点问题的新型交替正半定分裂预处理器
DOI:
10.1007/s11464-018-0679-y
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发表时间:
2016-04
影响因子:
--
通讯作者:
Zhiru Ren
中科院分区:
文献类型:
--
作者:
Yifen Ke;Changfeng Ma;Zhiru Ren
Based on the special positive semidefinite splittings of the saddle point matrix, we propose a new alternating positive semidefinite splitting (APSS) iteration method for the saddle point problem arising from the finite element discretization of the hybrid formulation of the time-harmonic eddy current problem. We prove that the new APSS iteration method is unconditionally convergent for both cases of the simple topology and the general topology. The new APSS matrix can be used as a preconditioner to accelerate the convergence rate of Krylov subspace methods. Numerical results show that the new APSS preconditioner is superior to the existing preconditioners.
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DOI:
10.1137/s0895479899351805
发表时间:
2000-03
期刊:
SIAM J. Matrix Anal. Appl.
影响因子:
--
作者:
Carsten Keller;N. Gould;A. Wathen
通讯作者:
Carsten Keller;N. Gould;A. Wathen
影响因子:
3.7
作者:
Zhong-Zhi Bai;M. Benzi;Fang Chen
通讯作者:
Zhong-Zhi Bai;M. Benzi;Fang Chen
影响因子:
2.1
作者:
Z. Bai;M. Benzi;Fang Chen;Zeng-Qi Wang
通讯作者:
Z. Bai;M. Benzi;Fang Chen;Zeng-Qi Wang
影响因子:
2.4
作者:
Cao, Yang;Yao, Lin-Quan;Jiang, Mei-Qun
通讯作者:
Jiang, Mei-Qun
影响因子:
2.8
作者:
V. Simoncini
通讯作者:
V. Simoncini