摘要
探究线性方程组Ax=b的系数矩阵A的Jacobi矩阵的特征值的平方为纯虚数或者是零时2PPJ迭代的收敛性问题,得出此类方程组2PPJ迭代的收敛性区间.并且给出一个数例对结论加以说明.
A linear systcm Ax=b is studied ,where A is coefficient matrix and the square of the eigenvalues of its Jacobi matrix are all pure imaginaries or zeroes .For its 2PPJ itcrative method ,the range of convergence is given. In addition,a nu merical example is given for illustrating the results.
作者
高树玲
畅大伟
GAO Shuling;CHANG Dawei(College of Mathematics and Statistics,Zhoukou Normal University,Zhoukou 466001,China;College of Mathematics and Information Science,Shaanxi Normal University,Xi'an 710062,China)
出处
《周口师范学院学报》
CAS
2018年第5期14-17,共4页
Journal of Zhoukou Normal University
基金
国家自然科学基金资助项目(No.60671063)