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非Hermitian正定线性方程组的外推的HSS迭代方法

本站小编 Free考研考试/2021-12-27

潘春平, 王红玉, 曹文方
浙江工业职业技术学院 人文社科部, 绍兴 312000
收稿日期:2017-08-09出版日期:2019-03-15发布日期:2019-02-18


基金资助:浙江省教育厅高校访问****教师专业发展项目资助(FX2017116).


ON EXTRAPOLATED HERMITIAN AND SKEW-HERMITIAN SPLITTING ITERATION METHOD FOR NON-HERMITIAN POSITIVE DEFINITE LINEAR SYSTEMS

Pan Chunping, Wang Hongyu, Cao Wenfang
Dept. of Humanities and Social Sciences, Zhejiang Industry Polytechnic College, Shaoxing 312000, China
Received:2017-08-09Online:2019-03-15Published:2019-02-18







摘要



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为了高效地求解大型稀疏非Hermitian正定线性方程组,在白中治、Golub和Ng提出的Hermitian和反Hermitian分裂(HSS)迭代法的基础上,通过引入新的参数并结合迭代法的松弛技术,对HSS迭代方法进行加速,提出了一种新的外推的HSS迭代方法(EHSS),并研究了该方法的收敛性.数值例子表明:通过参数值的选择,新方法比HSS方法具有更快的收敛速度和更少的迭代次数,选择了合适的参数值后,可以提高HSS方法的收敛效率.
MR(2010)主题分类:
65F10
65F50
65T10

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