On the preconditioned AOR iterative method for Z-matrices

Details On the preconditioned AOR iterative method for Z-matrices On the preconditioned AOR iterative method for Z-matrices

2011-06-25

arxiv.org/abs/1106.5087v1

Mathematics

Numerical Analysis

11 pages

Scientific paper

Several preconditioned AOR methods have been proposed to solve system of linear equations $Ax=b$, where $A \in \mathbb{R}^{n \times n}$ is a unit Z-matrix. The aim of this paper is to give a comparison result for a class of preconditioners $P$, where $P\in \mathbb{R}^{n\times n}$ is nonsingular, nonnegative and has unit diagonal entries. Numerical results for corresponding preconditioned GMRES methods are given to illustrate the theoretical results.

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