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

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.