Numerical Radius Inequalities for Finite Sums of Operators

Demonstratio mathematica

article

Alireza Kamel Mirmostafaee¹  Omid Pourbahari Rahpeyma¹  Mohsen Erfanian Omidvar² 

[1] CENTER OF EXCELLENCE IN ANALYSIS ON ALGEBRAIC STRUCTURES DEPARTMENT OF PURE MATHEMATICS FERDOWSI UNIVERSITY OF MASHHAD P. O. BOX 1159;MASHHAD BRANCH ISLAMIC AZAD UNIVERSITY

关键词: and phrases numerical radius;    spectral radius;    norm inequality;   

DOI  :  10.2478/dema-2014-0076

学科分类：外科医学

来源: De Gruyter

【 摘 要 】

In this paper, we obtain some sharp inequalities for numerical radius of finite sums of operators. Moreover, we give some applications of our result in estimation of spectral radius. We also compare our results with some known results.

【 授权许可】

CC BY