Reza BEHZADI.A New Class AOR Preconditioner for $L$-Matrices[J].数学研究及应用,2019,39(1):101~110 |
A New Class AOR Preconditioner for $L$-Matrices |
A New Class AOR Preconditioner for $L$-Matrices |
投稿时间:2018-02-26 修订日期:2018-08-12 |
DOI:10.3770/j.issn:2095-2651.2019.01.010 |
中文关键词: AOR iterative method $L$-matrix irreducible matrix spectral radius preconditioner iteration matrix |
英文关键词:AOR iterative method $L$-matrix irreducible matrix spectral radius preconditioner iteration matrix |
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中文摘要: |
Hadjidimos (1978) proposed a classical accelerated overrelaxation (AOR) iterative method to solve the system of linear equations, and discussed its convergence under the conditions that the coefficient matrices are irreducible diagonal dominant, $L$-matrices, and consistently orders matrices. Several preconditioned AOR methods have been proposed to solve system of linear equations $Ax = b$, where $A \in \mathbb{R}^{n\times n}$ is an $L$-matrix. In this work, we introduce a new class preconditioners for solving linear systems and give a comparison result and some convergence result for this class of preconditioners. Numerical results for corresponding preconditioned GMRES methods are given to illustrate the theoretical results. |
英文摘要: |
Hadjidimos (1978) proposed a classical accelerated overrelaxation (AOR) iterative method to solve the system of linear equations, and discussed its convergence under the conditions that the coefficient matrices are irreducible diagonal dominant, $L$-matrices, and consistently orders matrices. Several preconditioned AOR methods have been proposed to solve system of linear equations $Ax = b$, where $A \in \mathbb{R}^{n\times n}$ is an $L$-matrix. In this work, we introduce a new class preconditioners for solving linear systems and give a comparison result and some convergence result for this class of preconditioners. Numerical results for corresponding preconditioned GMRES methods are given to illustrate the theoretical results. |
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