Refinements of some numerical radius inequalities for operators | Rendiconti del Circolo
Matematico di Palermo Series 2 Skip to main content SpringerLink Account Menu Find a …

Let 𝔸=(AOOA) be a 2× 2 diagonal operator matrix whose each diagonal entry is a bounded
positive (semi-definite) linear operator A acting on a complex Hilbert space ℋ. In this paper …

New numerical radius inequalities for operator matrices and a bound for the zeros of
polynomials | SpringerLink Skip to main content Advertisement SpringerLink Log in Menu Find a …

Let () BH be the* C algebra of all bounded linear operators on the complex Hilbert space. H
The numerical radius (.), w the spectral radius (.), r and the usual operator norm||.|| for() …

Estimates for the numerical radius of n × n operator matrices Page 1 Journal of Mathematical
Inequalities Volume 16, Number 3 (2022), 891–907 doi:10.7153/jmi-2022-16-60 ESTIMATES …

FURTHER BEREZIN NUMBER INEQUALITIES OF OPERATOR MATRICES Messaoud
Guesba1 and Ulas Yamancı2 1. Introduction Let H be a separabl Page 1 FACTA …

In this work, some new inequalities for the numerical radius of block n-by-n matrices are
presented. As an application, the bounding of zeros of polynomials using the Frobenius …

Scalar quantities associated with Hilbert-space operators have attracted the attention of
numerous researchers due to their role in understanding the geometry of the C∗-algebra of …

In this work, we provide upper and lower bounds for the numerical radius of an n× nn*n off-
diagonal operator matrix, which extends some results by Abu-Omar and Kittaneh (Stud …

In this paper, we implement the improvement of numerical radius inequalities that were
produced by Alomari MW.[Refinements of some numerical radius inequalities for Hilbert …