A Convex-Block Approach to Numerical Radius Inequalities

被引：3

作者：

Sababheh, Mohammad ^{[1
]}

Conde, Cristian ^{[2
,3
]}

Moradi, Hamid Reza ^{[4
]}

机构：

[1] Princess Sumaya Univ Technol, Amman, Jordan

[2] Univ Nacl Gen Sarmiento, Inst Ciencias, Buenos Aires, Argentina

[3] Consejo Nacl Invest Cient & Tecn, Buenos Aires, Argentina

[4] Islamic Azad Univ, Dept Math, Mashhad Branch, Mashhad, Iran

来源：

FUNCTIONAL ANALYSIS AND ITS APPLICATIONS | 2023年 / 57卷 / SUPPL 1期

关键词：

numerical radius; norm inequality; Cartesian decomposition; triangle inequality; BOUNDS;

D O I：

10.1134/S0016266323050039

中图分类号：

O29 [应用数学];

学科分类号：

070104 ;

摘要：

A simple convex approach and block techniques are used to obtain new sharpened versions of numerical radius inequalities for Hilbert space operators. These include comparisons of norms of operators, their Cartesian parts, their numerical radii, and the numerical radius of the product of two operators.

引用

页码：26 / 30

页数：5

共 8 条

[1] Generalized spectral radius and norm inequalities for Hilbert space operators [J].