摘要
利用一种新的预条件矩阵讨论了预条件Jacobi迭代方法,得到了比较定理,并且揭示了预条件Jacobi迭代方法的收敛速度和参数之间的关系.
With the aid of a new preconditioned matrix, the preconditioned Jacobi iterative method is discussed. Some comparison theorems are obtained, and the relation between the convergence rate of preconditioned Jacobi iterative method and the parameters is brought to light.
出处
《西北师范大学学报(自然科学版)》
CAS
2005年第5期21-23,共3页
Journal of Northwest Normal University(Natural Science)
基金
国家自然科学基金资助项目(10071048)
关键词
预条件矩阵
Jacobi迭代方法
比较定理
谱半径
preconditioned matrix
Jacobi iterative method
comparison theorems
spectral radius