Results 21 to 30 of about 350,578 (278)

Some operator inequalities via convexity [PDF]

open access: yesLinear and Multilinear Algebra, 2021
In this article, we employ a standard convex argument to obtain new and refined inequalities related to the matrix mean of two accretive matrices, the numerical radius and the Tsallis relative operator entropy.
Hamid Reza Moradi   +2 more
openaire   +2 more sources

Modulus of convexity for operator convex functions [PDF]

open access: yes, 2014
Given an operator convex function $f(x)$, we obtain an operator-valued lower bound for $cf(x) + (1-c)f(y) - f(cx + (1-c)y)$, $c \in [0,1]$. The lower bound is expressed in terms of the matrix Bregman divergence.
Kim, Isaac H.
core   +3 more sources

Yosida Complementarity Problem with Yosida Variational Inequality Problem and Yosida Proximal Operator Equation Involving XOR-Operation

open access: yesJournal of Mathematics, 2021
Due to the importance of Yosida approximation operator, we generalized the variational inequality problem and its equivalent problems by using Yosida approximation operator. The aim of this work is to introduce and study a Yosida complementarity problem,
Rais Ahmad   +3 more
doaj   +1 more source

A natural derivative on [0,n] and a binomial Poincar\'e inequality [PDF]

open access: yes, 2011
We consider probability measures supported on a finite discrete interval $[0,n]$. We introduce a new finitedifference operator $\nabla_n$, defined as a linear combination of left and right finite differences. We show that this operator $\nabla_n$ plays a
Hillion, Erwan   +2 more
core   +4 more sources

$L^q$ Inequalities and Operator Preserving Inequalities

open access: yesAnalysis in Theory and Applications, 2014
Summary: Let \(\mathbb{P}_n\) be the class of polynomials of degree at most \(n\). \textit{N. A. Rather} and \textit{M. A. Shah} [J. Math. Anal. Appl. 399, No. 1, 422--432 (2013; Zbl 1259.30006)] proved that if \(P\in \mathbb{P}_n\) and \(P(z)\neq 0\) in \(|z|0\) and \(0 \leq ...
Bidkham, M., Ahmadi, S.
openaire   +1 more source

Strichartz inequality for orthonormal functions [PDF]

open access: yes, 2013
We prove a Strichartz inequality for a system of orthonormal functions, with an optimal behavior of the constant in the limit of a large number of functions.
Frank, Rupert L.   +3 more
core   +3 more sources

New progress on the operator inequalities involving improved Young’s and its reverse inequalities relating to the Kantorovich constant

open access: yesJournal of Inequalities and Applications, 2017
The purpose of this paper is to give a survey of the progress, advantages and limitations of various operator inequalities involving improved Young’s and its reverse inequalities related to the Kittaneh-Manasrah inequality.
Jie Zhang, Junliang Wu
doaj   +1 more source

The Second-Order Differential Equation System with the Controlled Process for Variational Inequality with Constraints

open access: yesComplexity, 2021
In this paper, the variational inequality with constraints can be viewed as an optimization problem. Using Lagrange function and projection operator, the equivalent operator equations for the variational inequality with constraints under the certain ...
Li Wang, Xingxu Chen, Juhe Sun
doaj   +1 more source

On further refinements for Young inequalities

open access: yesOpen Mathematics, 2018
In this paper sharp results on operator Young’s inequality are obtained. We first obtain sharp multiplicative refinements and reverses for the operator Young’s inequality.
Furuichi Shigeru, Moradi Hamid Reza
doaj   +1 more source

New Refinement of the Operator Kantorovich Inequality

open access: yesMathematics, 2019
We focus on the improvement of operator Kantorovich type inequalities. Among the consequences, we improve the main result of the paper [H.R. Moradi, I.H. Gümüş, Z.
Hamid Reza Moradi   +2 more
doaj   +1 more source

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