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迭代矩阵谱半径上界的新估计 被引量:1

A new estimate of the upper bound of iterative matrices
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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
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参考文献6

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二级参考文献9

同被引文献5

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  • 5胡家赣.‖A^(-1)‖_∞的上界和等对角优势[J].计算物理,1991,8(1):68-78. 被引量:5

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