Results 21 to 30 of about 25,622 (147)

Approximation of functions of two variables by certain linear positive operators

open access: yes, 2007
We introduce certain linear positive operators and study some approximation properties of these operators in the space of functions, continuous on a compact set, of two variables.
Bascanbaz-Tunca, Gulen   +2 more
core   +1 more source

Fractional integrals and derivatives: mapping properties [PDF]

open access: yes, 2016
This survey is aimed at the audience of readers interested in the information on mapping properties of various forms of fractional integration operators, including multidimensional ones, in a large scale of various known function spaces.As is well known,
Rafeiro, Humberto, Samko, Stefan
core   +1 more source

On the Convergence of a Family of Chlodowsky Type Bernstein-Stancu-Schurer Operators

open access: yesJournal of Function Spaces, 2018
We construct a new family of univariate Chlodowsky type Bernstein-Stancu-Schurer operators and bivariate tensor product form. We obtain the estimates of moments and central moments of these operators, obtain weighted approximation theorem, establish ...
Lian-Ta Shu, Guorong Zhou, Qing-Bo Cai
doaj   +1 more source

Approximation by a generalized class of Dunkl type Szász operators based on post quantum calculus

open access: yesJournal of Inequalities and Applications, 2019
The main purpose of this paper is to introduce a generalized class of Dunkl type Szász operators via post quantum calculus on the interval [12,∞) $[ \frac{1}{2},\infty )$.
Abdullah Alotaibi
doaj   +1 more source

On the Approximation by Balázs–Szabados Operators

open access: yesMathematics, 2021
We present three new approximation properties of the Balázs–Szabados operators. Firstly, we prove that, in certain cases, these operators approximate some super-exponential functions on compact intervals.
Adrian Holhoş
doaj   +1 more source

A new construction of Lupaş operators and its approximation properties

open access: yesAdvances in Difference Equations, 2021
The aim of this paper is to study a new generalization of Lupaş-type operators whose construction depends on a real-valued function ρ by using two sequences u m $u_{m} $ and v m $v_{m}$ of functions.
Mohd Qasim   +3 more
doaj   +1 more source

Quantitative-Voronovskaya and Grüss-Voronovskaya type theorems for Szász-Durrmeyer type operators blended with multiple Appell polynomials

open access: yesJournal of Inequalities and Applications, 2017
In this paper, we establish a link between the Szász-Durrmeyer type operators and multiple Appell polynomials. We study a quantitative-Voronovskaya type theorem in terms of weighted modulus of smoothness using sixth order central moment and Grüss ...
Trapti Neer, Purshottam Narain Agrawal
doaj   +1 more source

Dunkl-type generalization of the second kind beta operators via ( p , q ) $(p,q)$ -calculus

open access: yesJournal of Inequalities and Applications, 2021
The main purpose of this research article is to construct a Dunkl extension of ( p , q ) $(p,q)$ -variant of Szász–Beta operators of the second kind by applying a new parameter.
Md. Nasiruzzaman   +2 more
doaj   +1 more source

Mixed modulus of continuity in the Lebesgue spaces with Muckenhouptweights and their properties

open access: yesTURKISH JOURNAL OF MATHEMATICS, 2016
Summary: Main properties of the mixed modulus of continuity in the Lebesgue spaces with Muckenhoupt weights are investigated. We use the mixed modulus of continuity to obtain Potapov type direct and inverse estimates of angular trigonometric approximation of functions in these spaces. We prove an equivalence between the mixed modulus of continuity and \
openaire   +5 more sources

Weighted approximation: Korovkin and quantitative type theorems

open access: yesModern Mathematical Methods, 2023
In the present paper, we consider Korovkin and quantitative theorems, which have been treated by various authors to date, under weighted approximation.
Ali Aral
doaj  

Home - About - Disclaimer - Privacy