对称逐步超松弛预处理共轭梯度法的改进迭代格式

作     者：林绍忠 Lin Shao-zhong(Yangtze River Scientific Researeh Institute, Wuhan)

作者机构：武汉长江科学院 

出 版 物：《数值计算与计算机应用》 (Journal on Numerical Methods and Computer Applications)

年 卷 期：1997年第18卷第4期

页      面：266-270页

核心收录：

学科分类：07[理学] 070102[理学-计算数学] 0701[理学-数学] 

主　　题：线性方程组 CG法 PCG法 ICCG法 迭代格式 

摘      要：The symmetric successive over relaxation- preconditioned conjugated gradient method (SSOR-PCG) is a very efficient iterative method for solving large sparse linear *** this paper an improved iterative format 0f the SSORPCG method is pressented,which avoids the product operation of coefficient matrix and direction vector and thus saves computation work about 8%-50%.