最终S-Nekrasov矩阵逆矩阵无穷范数的上界  

Upper Bounds of the Infinite Norm of the Inverse Matrix of Final S-Nekrasov Matrix

作　　者：蒋建新[1] JIANG Jianxin(School of Artificial Intelligence,Wenshan University,Wenshan Yunnan 663099,China)

机构地区：[1]文山学院人工智能学院,云南文山663099

出　　处：《文山学院学报》2023年第5期95-98,共4页Journal of Wenshan University

摘　　要：研究矩阵条件数计算中A的逆矩阵A^(-1)的A|^(-1)|_(∞)的估计问题,利用S-Nekrasov矩阵逆矩阵无穷范数的估计式,结合最终S-Nekrasov矩阵的定义式,得到了该类矩阵的新上界估计式。In the calculation of condition number,The A|^(-1)|_(∞)estimation of the inverse matrix A^(-1) of A is studied.Combining the estimation formula of infinite norm of the inverse matrix of S-Nekrasov matrix wih the definition formula of the final S-Nekrasov matrix,the new upper bound of this kind of matrix is obtained.

关 键 词：S-Nekrasov矩阵 最终S-Nekrasov矩阵 无穷范数 上界 

分 类 号：O151.21[理学—数学]