Structure of the polynomials in preconditioned BiCG algorithms and the switching direction of preconditioned systems
Structure of the polynomials in preconditioned BiCG algorithms and the switching direction of preconditioned systems
复制标题
预处理 BiCG 算法中多项式的结构以及预处理系统的切换方向
DOI:
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发表时间:
2016
期刊:
影响因子:
--
通讯作者:
M. Sugihara
中科院分区:
文献类型:
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作者:
Shoji Itoh;M. Sugihara
We present a theorem that defines the direction of a preconditioned system for the bi-conjugate gradient (BiCG) method, and we extend it to preconditioned bi-Lanczos-type algorithms. We show that the direction of a preconditioned system is switched by construction and by the settings of the initial shadow residual vector. We analyze and compare the polynomial structures of four preconditioned BiCG algorithms.
DOI:
10.1137/0913035
发表时间:
1992-03-01
期刊:
SIAM JOURNAL ON SCIENTIFIC AND STATISTICAL COMPUTING
影响因子:
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作者:
VANDERVORST, HA
通讯作者:
VANDERVORST, HA
影响因子:
2.4
作者:
Kuniyoshi Abe;Gerard Sleijpen
通讯作者:
Gerard Sleijpen