Methods of semiconjugate directions

被引:4
|
作者
Il'In, V. P. [1 ]
机构
[1] Russian Acad Sci, Siberian Branch, Inst Computat Math & Math Geophys, Novosibirsk 630090, Russia
关键词
D O I
10.1515/RJNAMM.2008.022
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
Methods of iterative solution in Krylov subspaces are considered for systems of linear algebraic equations with positive definite nonsymmetric real matrices A, where directing (correcting) vectors and residual vectors possess different properties of A-semiconjugacy or orthogonality. Variational and projective properties of some variants of such algorithms and the possibility to use dynamic preconditioners are described. Results of numerical experiments are presented.
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页码:369 / 387
页数:19
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