摘要
利用非奇异M矩阵A的逆矩阵A-1的元素的下界估计式,给出了A与A-1的Hadamard积AA-1的最小特征值下界的一些新估计式。这些估计式仅依赖于矩阵A的元素,并且在某些情况下可得到比现有估计式更精确的界。
Using the estimations of the lower bound of elements of inverse matrix of nonsingular M - matrix, give the new estimators of lower bound of minimum eigenvalue for the Hadamard product of A and A-1. These estimates de- pend only on the matrix elements, and are the best than the prior estimation precision under certain conditions.
出处
《延安大学学报(自然科学版)》
2013年第3期7-9,共3页
Journal of Yan'an University:Natural Science Edition