两种预优AOR方法在二级迭代过程中收敛性的比较  

Convergence Comparison of Two Preconditioned AOR Methods Used in Two-Stage Iterative Process

作　　者：滑伟[1] 

机构地区：[1]南京工程学院基础部,江苏南京211167

出　　处：《南京工程学院学报（自然科学版）》2011年第3期6-9,共4页Journal of Nanjing Institute of Technology(Natural Science Edition)

摘　　要：对于线性系统Ax=b,当A为L-矩阵时,通过两种预优AOR迭代方法收敛的谱半径的比较,给出在二级迭代的情况下,外迭代的R1-收敛因子的更为精确的结果.This paper attempts to examine the linear system Ax = b, where A is a L-matrix. Finer results of the R：-factor of the outer iteration in two-stage iterative process are obtained by comparing the spectral radii preconditioned by two AOR methods.

关 键 词：二级迭代 L-矩阵 预优AOR方法 谱半径 

分 类 号：O241.6[理学—计算数学]