摘要
本文发现古老的Lagu(?)rre不等式的一个有趣应用,利用它给出两个n阶正定Hermite矩阵乘积之特征值的估计,并且这个估计比文中的结果更佳。
In this note, we give a new application of the old Laguerre's inequality. We have the following.Therein Let A,B be positive definite Hermitian and λ1, …, λn be characteristic values of AB,thenThis inequality(*) is better than(l) in[1].
关键词
不等式
矩阵
特征值
Laguerre's inequality,matrix,characteristic value.
