M矩阵Hadamard积的进一步研究

A restudy of matrix of the Hadamard product

在特征值存在域的圆盘定理中应用M矩阵A的逆矩阵A非主对角元素上界估计式,得到矩阵A与A^(-1)的Hadamard积A°A^(-1)的最小特征值下界的一些新估计式。

Using the estimates of upper bounds in the inverse matrix nonmain diagonal in the eigenvalue disc theorem the existence of domain, gives the Hadamard product of matrixand of the minimum eigenvalue bounds of the new estimator.