A Note on the GMRES Method for Linear Discrete Ill-Posed Problems

A Note on the GMRES Method for Linear Discrete Ill-Posed Problems
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关于线性离散不适定问题的 GMRES 方法的注解

DOI:
10.4208/aamm.09-m09s08
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发表时间:
2009
影响因子:
1.4
通讯作者:
T. Nodera
T. Nodera
中科院分区:
工程技术3区
文献类型:
--
作者:
Nao Kuroiwa;T. Nodera

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在本文中,我们提出了针对 RRGMRES 和 AGMRES 的新修改算法的提案。众所周知,RRGMRES 和 AGMRES 是解决线性离散不适定问题的可行方法。在本文中,我们重点关注残差范数,并提出了两项​​改进,其中残差范数的连续更新和下降的稳定分别提高了性能。我们的数值实验证实,我们改进的算法对于线性离散不适定问题是有效的。 AMS 学科分类:65F10
In this paper, we are presenting a proposal for new modified algorithms for RRGMRES and AGMRES. It is known that RRGMRES and AGMRES are viable methods for solving linear discrete ill-posed problems. In this paper we have fo- cused on the residual norm and have come-up with two improvements where suc- cessive updates and the stabilization of decreases for the residual norm improve performance respectively. Our numerical experiments confirm that our improved algorithms are effective for linear discrete ill-posed problems. AMS subject classifications: 65F10
DOI: 10.1137/1.9780898718003
发表时间: 2003-05
期刊: --
影响因子: --
作者:
Y. Saad
通讯作者: Y. Saad