Generalized Upper Bounds Estimation of Numerical Radius and Norm for the Sum of Operators

被引：2
作者：
Gao, Muqile [1 ]
Wu, Deyu [1 ]
Chen, Alatancang [2 ]
机构：
[1] Inner Mongolia Univ, Sch Math Sci, Hohhot 010021, Peoples R China
[2] Inner Mongolia Normal Univ, Hohhot 010022, Peoples R China
来源：
MEDITERRANEAN JOURNAL OF MATHEMATICS | 2023年 / 20卷 / 04期
基金：
中国国家自然科学基金;
关键词：
Numerical radius; usual operator norm; sum of operators; extension Buzano inequality; Young inequality; INEQUALITIES;
D O I：
10.1007/s00009-023-02405-2
中图分类号：
O29 [应用数学];
学科分类号：
070104 ;
摘要：
We give some generalized upper bounds for the numerical radius and usual operator norm of the sum of two Hilbert space operators. These inequalities are mainly based on the extension Buzano inequality and the generalized Young inequality. And our bounds refine and generalize the existing related upper bounds.
引用
收藏
页数：15
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