关于M矩阵Hadamard积的几个不等式

Inequalities of Hadamard Product of M-matrices

根据非奇异M-矩阵的特点和性质,对在不同情况下,两个M-矩阵的Hadamard积做进一步研究,给出q(B○A-1)和q(A○A-1)的几个新不等式;算例表明,文中所给的不等式在某些情况下比现有不等式的估计结果更精确。

According to the characteristics and properties of nonsingularM-matrices, the Hadamard product of twoM-matrices in different situations is further researched, and some new inequalities on lower bounds ofq（B A-1） andq（A A-1） are given. The given calculations show that these inequalities improve several existing results in some cases.