Results 21 to 30 of about 6,303 (265)

Operator iteration on the Young inequality

open access: yesJournal of Inequalities and Applications, 2016
In this paper, we employ iteration on operator version of the famous Young inequality and obtain more arithmetic-geometric mean inequalities and the reverse versions for positive operators.
Xianhe Zhao, Le Li, Hongliang Zuo
doaj   +1 more source

INEQUALITIES CONCERNING B-OPERATORS

open access: yesIssues of Analysis, 2016
Summary: Let \(\mathcal{P}_{n}\) be the class of polynomials of degree at most \(n\). Rahman introduced the class \(\mathcal {B}_{n}\) of operators \(B\) that map \(\mathcal {P}_{n}\) into itself. In this paper we prove some results concerning such operators and thereby obtain generalizations of some well known polynomial inequalities.
WALI S.L., SHAH W.M., LIMAN A.
openaire   +3 more sources

A Grüss type operator inequality [PDF]

open access: yesAnnals of Functional Analysis, 2017
In [P. Renaud, "A matrix formulation of Grüss inequality", Linear Algebra Appl. 335 (2001), 95--100] it was proved an operator inequality involving the usual trace functional. In this article, we give a refinement of such result and we answer positively the Renaud's open problem.
Bottazzi, T., Conde, C.
openaire   +4 more sources

Several inequalities for an integral transform of positive operators in Hilbert spaces with applications

open access: yesCubo, 2023
For a continuous and positive function $w\left( \lambda \right) ,$ $\lambda >0$ and $\mu $ a positive measure on $(0,\infty )$ we consider the following integral transform % \begin{equation*} \mathcal{D}\left( w,\mu \right) \left( T\right) :=\int_{0}^{
S. S. Dragomir
doaj   +1 more source

Generalized proportional fractional integral functional bounds in Minkowski’s inequalities

open access: yesAdvances in Difference Equations, 2021
In this research paper, we improve some fractional integral inequalities of Minkowski-type. Precisely, we use a proportional fractional integral operator with respect to another strictly increasing continuous function ψ.
Tariq A. Aljaaidi   +4 more
doaj   +1 more source

Schur multiplier operator and matrix inequalities [PDF]

open access: yesJournal of Mahani Mathematical Research, 2023
In this note we obtain a reverse version of the Haagerup Theorem. In particular, if $ A \in \mathbb{M}_{n}$ has a $ 2\times2- $ principal submatrix as $ \left[ \begin{array}{cc}1& \alpha \\\beta & 1\\\end{array}\right]$ with $ \beta \neq \bar{\alpha ...
Alemeh Sheikhhosseini
doaj   +1 more source

Correlation Inequalities for Schrödinger Operators [PDF]

open access: yesMathematical Physics, Analysis and Geometry, 2020
This paper analyzes Schödinger operators from viewpoint of correlation inequalities. We construct Griffiths inequalities for the ground state expectations by applying operator-theoretic correlation inequalities. As an example of such an application, we analyze the momentum distribution, i.e., the Fourier transform of the ground state density.
openaire   +4 more sources

An operator inequality [PDF]

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1983
An inequality is proved in abstract separable Hilbert space H where A and B are bounded self‐adjoint positive operators defined in H such that R(A) = R(B) and R(A) is closed.
openaire   +3 more sources

An operator inequality

open access: yesLinear Algebra and its Applications, 1990
Authors have proved some results on an operator inequality in Hilbert space.
Corach, G., Porta, H., Recht, L.
openaire   +1 more source

Operator inequalities of Jensen type

open access: yesTopological Algebra and its Applications, 2013
We present some generalized Jensen type operator inequalities involving sequences of self-adjoint operators.
Moslehian M. S., Mićić J., Kian M.
doaj   +1 more source

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