摘要
给出三对角非负矩阵A与B的Hadamard积A°B的谱半径的上界的估计式和非奇异三对角M-矩阵A和B的Fan积A*B的最小特征值下界的估计式,这些估计式只依赖于矩阵A与B的元素,因而易于计算.
New upper bounds of the spectral radius on Hadamard product for tridiagonal nonnegative matrices, and new lower bounds of the minimum eigenvalue on Fan product for nonsingular tridiagonal matrices were given. The estimating formulas of the bounds are easier to calculate ,and they are only depending on the entries of matrices A and B.
出处
《甘肃联合大学学报(自然科学版)》
2013年第1期28-30,共3页
Journal of Gansu Lianhe University :Natural Sciences