摘要
本文假设系数矩阵A具有“性质(?)”,讨论USSOR、SSOR迭代的收敛性,给出了这两种迭代收敛的充要条件,同时给出了用2-块USSOR迭代和2-块SSOR迭代求解最小二乘问题的收敛域.
In this paper we suppose that coefficient matrix A possesses 'proprety∮' then discuss the convergence of the USSOR,SSOR iterative methods, give the necessary and sufficient conditions of this two iterative methods, at the same time, give the convergence domains of the 2-block USSOR、SSOR iterative methods for large scale least squares problems.
