Results 51 to 60 of about 206,253 (185)

Certain Chebyshev-Type Inequalities Involving Fractional Conformable Integral Operators

open access: yesMathematics, 2019
Since an interesting functional by P.L. Chebyshev was presented in the year 1882, many results, which are called Chebyshev-type inequalities, have been established. Some of these inequalities were obtained by using fractional integral operators.
Gauhar Rahman   +4 more
doaj   +1 more source

Inequalities for Shepard-type operators [PDF]

open access: yesJournal of Mathematical Inequalities, 2018
Summary: Direct and converse approximation error estimates for generalized Shepard operators are given, improving analogous inequalities for well-known Shepard operators. As application in CAGD, generalized degree elevation algorithms for modeling the shape of Shepard-type curves are presented, improving previous techniques.
DELLA VECCHIA, Biancamaria   +1 more
openaire   +3 more sources

Two-Weight Norm Inequality for the One-Sided Hardy-Littlewood Maximal Operators in Variable Lebesgue Spaces

open access: yesJournal of Function Spaces, 2016
The authors establish the two-weight norm inequalities for the one-sided Hardy-Littlewood maximal operators in variable Lebesgue spaces. As application, they obtain the two-weight norm inequalities of variable Riemann-Liouville operator and variable Weyl
Caiyin Niu, Zongguang Liu, Panwang Wang
doaj   +1 more source

On Further Refinements of Numerical Radius Inequalities

open access: yesAxioms, 2023
This paper introduces several generalized extensions of some recent numerical radius inequalities of Hilbert space operators. More preciously, these inequalities refine the recent inequalities that were proved in literature.
Ayman Hazaymeh   +4 more
doaj   +1 more source

Power vector inequalities for operator pairs in Hilbert spaces and their applications

open access: yesOpen Mathematics
This study explores the power vector inequalities for a pair of operators (B,C)\left(B,C) in a Hilbert space. By utilizing a Mitrinović-Pečarić-Fink-type inequality for inner products and norms, we derive various power vector inequalities.
Altwaijry Najla   +2 more
doaj   +1 more source

Some Generalized Euclidean Operator Radius Inequalities

open access: yesAxioms, 2022
In this work, some generalized Euclidean operator radius inequalities are established. Refinements of some well-known results are provided. Among others, some bounds in terms of the Cartesian decomposition of a given Hilbert space operator are proven.
Mohammad W. Alomari   +2 more
doaj   +1 more source

Antieigenvalue inequalities in operator theory

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2004
We will prove some inequalities among trigonometric quantities of two and three operators. In particular, we will establish an inequality among joint trigonometric quantities of two operators and trigonometric quantities of each operator. As a corollary,
Morteza Seddighin
doaj   +1 more source

Geometric operator inequalities

open access: yesLinear Algebra and its Applications, 1997
In a given \(C^*\)-algebra there are several interesting subsets (e.g., the set of idempotent elements, the set of selfadjoint invertible elements, the set of nilpotent elements of a given order, the similarity and unitary orbits of elements etc.) that have a differentiable structure and in which the length of curves is measured by means of a Finsler ...
Andruchow, E., Corach, G., Stojanoff, D.
openaire   +2 more sources

A-numerical radius inequalities for operator matrices in semi-Hilbertian spaces

open access: yesJournal of Inequalities and Applications
This paper improves a well-known inequality in the literature by introducing new A-numerical radius inequalities for 2 × 2 $2\times 2$ operator matrices.
Fuad Kittaneh   +2 more
doaj   +1 more source

Matrix Hermite-Hadamard type inequalities [PDF]

open access: yes, 2013
We present several matrix and operator inequalities of Hermite-Hadamard type. We first establish a majorization version for monotone convex functions on matrices. We then utilize the Mond-Pecaric method to get an operator version for convex functions. We
Moslehian, Mohammad Sal
core  

Home - About - Disclaimer - Privacy