摘要
矩阵的Fan积是矩阵理论研究的重要问题之一.利用特征值包含域定理给出两个非奇异M-矩阵Fan积最小特征值的下界估计式,所得结果只依赖于两个非奇异M-矩阵的元素,便于计算.数值例子表明新估计式在一定条件下改进了现有的一些结果.
Fan product of matrices is one of important problems in matrix theory. An estimator of inferior limit of minimum eigenvalue of Fan product of two nonsingular M-matrices is given by means of characteristic value containing domain theorem, and the result obtained depends only on the entries in the two nonsingular M-matrices, so that the computation is easy. Numerical example shows that the new estimator will improve several existing results on certain conditions.
作者
钟琴
ZHONG Qin(Department of Mathematics, Jinjiang College Sichuan University, Pengshan 620860, China)
出处
《兰州理工大学学报》
CAS
北大核心
2019年第5期149-152,共4页
Journal of Lanzhou University of Technology
基金
国家自然科学基金(11471225)
四川省教育厅自然科学研究项目(18ZB0364)
关键词
M-矩阵
Fan积
最小特征值
下界
M-matrix
Fan product
minimum eigenvalue
inferior limit
