Numerical radius inequalities for operator matrices

作者:Huang, Hong; Zhu, Zhi-Feng*; Xu, Guo-Jin
来源:LINEAR & MULTILINEAR ALGEBRA, 2022, 70(20): 5362-5372.
DOI:10.1080/03081087.2021.1915233

摘要

In this paper, we firstly establish new numerical radius inequalities which refine a result of Kittaneh in [Studia Math. 168, 73- 80 (2005)], then present some numerical radius inequalities involving non-negative increasing convex functions for n x n operator matrices, which generalize the related results of Shebrawi in [Linear Algebra Appl. 523(15), 1-12 (2017)].