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不可约M矩阵最小特征值的界

Bound for the Minimum Eigenvalue of the Irreducible M-matrix
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摘要 利用不可约非负矩阵A和不可约M矩阵B的性质,给出了不可约非负矩阵A■B-1的新上界ρ(A■B-1)≤aii(1+ρ(JB)ρ(JA))/bii(1-ρ2(JB)),以及B的最小特征值τ(B)的新下界τ(B)≥1-ρ2(JB)/1+(n-1)ρ(JB)min1≤i≤nbii,数值算例表明了新界的有效性. In the paper,using the properties of irreducible nonnegative matrix A and irreducible M matrix B,we give the new upper bound ρ( A B-1) ≤aii( 1+ρ( JB) ρ( JA))bii( 1-ρ2( JB))of irreducible nonnegative A B-1,and the new lower bound τ( B) ≥1-ρ2( JB)1+( n-1) ρ( JB)min1≤i≤nbiiof the minimum eigenvalue τ( B) for matrix B. Numerical examples show the validity of the result.
作者 李艳艳
出处 《湖北民族学院学报(自然科学版)》 CAS 2016年第2期140-141,169,共3页 Journal of Hubei Minzu University(Natural Science Edition)
基金 云南省教育厅科学研究项目(2013Y585)
关键词 不可约 M矩阵 HADAMARD积 最小特征值 irreducible M matrix Hadamard product minimum eigenvalue
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