摘要
给出了非奇异M-矩阵A的逆矩阵与非奇异M-矩阵B的Hadamard积的最小特征值下界的估计式,该估计式只依赖于矩阵A与B的元素,易于计算,算例表明,所得估计式在一定条件下比现有估计式更为精确。
A new lower bound of the minimum eigenvalues of Hadamard product for inverse A-1 of nonsingular M-matrix A and nonsingular M-matrix B is given.This estimating formula of the bounds are easier to calculate since they only depend on the entries of matrices A and B.The given numerical example show that estimating formula of the bounds is better than several known estimating formulas.
出处
《四川理工学院学报（自然科学版）》
CAS
2011年第6期729-732,共4页
Journal of Sichuan University of Science & Engineering(Natural Science Edition)
