几个酉不变范数不等式  

Some Inequalities for Unitarily Invariant Norms

作　　者：王耀群 胡兴凯[1] WANG Yaoqun;HU Xingkai(Faculty of Science,Kunming University of Science and Technology,Kunming 650500,China)

机构地区：[1]昆明理工大学理学院,云南昆明650500

出　　处：《应用数学》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)。

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.

关 键 词：酉不变范数 凸函数 半正定矩阵 

分 类 号：O151.21[理学—数学]