Results 31 to 40 of about 1,447 (262)

Weighted approximation by q-Ibragimov-Gadjiev operators [PDF]

open access: yes, 2020
The present paper deals with a q-generalization of Ibragimov-Gadjiev operators which were constructed by Ibragimov and Gadjiev in 1970. We studied convergence properties on the interval [0;infinity) and obtain rate of convergence in terms of weighted ...
Herdem, Serap   +3 more
core   +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

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

Approximation by sampling Kantorovich series in weighted spaces of functions [PDF]

open access: yes, 2022
This paper studies the convergence of the so-called sampling Kantorovich operators for functions belonging to weighted spaces of continuous functions. This setting allows us to establish uniform convergence results for functions that are not necessarily ...
TUNCER ACAR   +11 more
core   +2 more sources

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   +4 more sources

MODULUS OF CONTINUITY FOR BESSEL TYPE POTENIIAL OVER LORENTZ SPACE [PDF]

open access: yes
The generalized Bessel potentials are constructed using convolutions of the generalized Bessel-McDonald kernels with functions belonging to a basic rearrangement invariant space.
Alkhalil N.H.
core   +1 more source

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  

Rate of Weighted Statistical Convergence for Generalized Blending-Type Bernstein-Kantorovich Operators [PDF]

open access: yes, 2022
An alternative approach, known today as the Bernstein polynomials, to the Weierstrass uniform approximation theorem was provided by Bernstein. These basis polynomials have attained increasing momentum, especially in operator theory, integral equations ...
Ekrem Aljimi   +2 more
core   +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

Approximation of functions of two variables by certain linear positive operators [PDF]

open access: yes, 2007
Bascanbaz-Tunca, Gulen/0000-0003-3216-1661;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.
Taşdelen, Fatma   +2 more
core   +1 more source

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