摘要
在M是α-严格对角占优矩阵下估计迭代矩阵M-1 N谱半径上界.通过计算|λ(M-1 N)|需满足的条件得出了ρ(A-1),ρ(J)的估计,并用数值算例说明了这些结论的有效性.
The upper bound for spectral radius of iterative matrix M-1N is estimated when Mis an a- diag- nally dominant matrix. The esimations of p(A-1) and ρ(J) are obtained by calculating sufficient condi- tions for |λ(M-1N) | ,and the numerical example illustrates the effectiveness of the criteria.
出处
《纺织高校基础科学学报》
CAS
2012年第2期177-179,共3页
Basic Sciences Journal of Textile Universities
基金
国家自然科学基金资助项目(60671063)
关键词
α-严格对角占优矩阵
迭代矩阵
特征值
谱半径
a- diagnally dominant matices
iterative matrix
eigenvalue
spectral radius