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Z-矩阵最小特征值界的估计
ESTIMATING THE BOUNDS OF MINIMUM EIGENVALUE OF Z-MATRICES
【摘要】 文章讨论了不可约Z-矩阵A=sI-B的广义Perron补P_s-t(A/A[α])与非负不可约矩阵B的广义Perron补P_t(B/B[α])之间的关系,并由P_t(B/B[α])给出了估计A的最小特征值上下界的一种方法.数值例子表明这种方法是行之有效的.
【Abstract】 The article discusses the relationships between the generalized Perron complements of the irreducible Z-matrix A=sI-B and the irreducible nonnegative matrix B,and gives a new method that estimating the upper-lower bounds of minimum eigenvalue of matrix A. Numerical example shows that the algorithm is feasible and effective.
【关键词】 Z-矩阵;
广义Perron补;
非负矩阵;
谱半径;
【Key words】 Z-matrix; Generalized Perron complements; Nonnegative matrix; Spectral radius;
【Key words】 Z-matrix; Generalized Perron complements; Nonnegative matrix; Spectral radius;
- 【文献出处】 数值计算与计算机应用 ,Journal on Numerical Methods and Computer Applications , 编辑部邮箱 ,2011年02期
- 【分类号】O151.21
- 【下载频次】84