摘要
利用函数的凸性,得到矩阵酉不变范数的几个不等式.所得不等式改进了一些已有的结果.
In this article,we obtain several inequalities for unitarily invariant norms by using convex functions.Our results are refinements of some existing inequalities.
作者
王耀群
胡兴凯
WANG Yaoqun;HU Xingkai(Faculty of Science,Kunming University of Science and Technology,Kunming 650500,China)
出处
《应用数学》
北大核心
2023年第1期95-100,共6页
Mathematica Applicata
基金
Supported by the Fund for Fostering Talents in Kunming University of Science and Technology(KKZ3202007048)
the National Natural Science Foundation of China(11801240)。
关键词
酉不变范数
凸函数
半正定矩阵
Unitarily invariant norm
Convex function
Positive semidefinite matrix
