Further inequalities for the numerical radius of Hilbert space operators
Document Type
Article
Publication Title
Journal of Mathematical Inequalities
Abstract
In this article, we present some new inequalities for numerical radius of Hilbert space operators via convex functions. Our results generalize and improve earlier results by El-Haddad and Kittaneh. Among several results, we show that if A ∈ B (H) and r ≥ 2, then where w(·) and ||·|| denote the numerical radius and usual operator norm, respectively.
First Page
955
Last Page
967
DOI
10.7153/jmi-2019-13-68
Publication Date
1-1-2019
Recommended Citation
Tafazoli, Sara; Moradi, Hamid Reza; Furuichi, Shigeru; and Harikrishnan, Panackal, "Further inequalities for the numerical radius of Hilbert space operators" (2019). Open Access archive. 933.
https://impressions.manipal.edu/open-access-archive/933