6 papers
Integral Numerical Radius and Operator Matrix Bounds
Shiva Sheybani, Hamid Reza Moradi, Mohammad Sababheh
We establish new integral inequalities for the numerical radius and the operator norm of bounded linear operators on Hilbert spaces. Our results refine classical triangle-type and…
Weighted Inequalities For The Numerical Radius
Shiva Sheybani, Mohammed Sababheh, Hamid Reza Moradi
In this article, we obtain several new weighted bounds for the numerical radius of a Hilbert space operator. The significance of the obtained results is the way they generalize man…
Matrix Fejér and Levin-Stečkin Inequalities
Mohammad Sababheh, Shiva Sheybani, Hamid Reza Moradi
Fe{j}ér and Levin-Stečkin inequalities treat integrals of the product of convex functions with symmetric functions. The main goal of this article is to present possible matrix vers…
Singular Values Inequalities for Matrix Means
Mohammed Sababheh, Shigeru Furuichi, Shiva Sheybani +1
In this article, we show multiple inequalities for the singular values of the difference of matrix means. The obtained results refine and complement some well established results i…
A Note Around Operator Bellman Inequality
Shiva Sheybani, Mohsen Erfanian Omidvar, Mahnaz Khanegir
In this paper, we shall give an extension of operator Bellman inequality. This result is estimated via Kantorovich constant.
New inequalities for operator concave functions involving positive linear maps
S. Sheybani, M. E. Omidvar, H. R. Moradi
The purpose of this paper is to present some general inequalities for operator concave functions which include some known inequalities as a particular case. Among other things, we…