Results 41 to 50 of about 499 (123)

Complete asymptotic expansions related to conjecture on a Voronovskaja-type theorem

open access: yesJournal of Mathematical Analysis and Applications, 2018
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Ioan Gavrea, Mircea Ivan
openaire   +2 more sources

q-Parametric Bleimann Butzer and Hahn Operators

open access: yesJournal of Inequalities and Applications, 2008
We introduce a new q-parametric generalization of Bleimann, Butzer, and Hahn operators in C1+x*[0,∞). We study some properties of q-BBH operators and establish the rate of convergence for q-BBH operators.
P. Sabancıgil, N. I. Mahmudov
doaj   +1 more source

Parametric Extension of a Certain Family of Summation-Integral Type Operators

open access: yesCumhuriyet Science Journal, 2023
In this paper, we introduce a parametric extension of a certain family of summation-integral type operators on the interval [0,∞). Firstly, we obtain test functions and central moments. Secondly, we investigate weighted approximation properties for these
İsmet Yüksel, Nadire Fulda Odabaşı
doaj   +1 more source

Convergence and Voronovskaja-type theorems for derivatives of generalized Baskakov operators

open access: yesCentral European Journal of Mathematics, 2008
The authors prove some theorems the convergence of the first derivatives of generalized Baskakov operators for functions of one and two variables in polynomial and exponential weight spaces. Some Voronovskaja-type theorems are also presented.
Wafi Abdul, Khatoon Salma
openaire   +2 more sources

The approximation of bivariate functions by modified bivariate operators and GBS operators associated

open access: yesJournal of Numerical Analysis and Approximation Theory, 2012
In this paper we demonstrate a Voronovskaja-type theorem and approximation theorem for a class of modified operators and Generalized Boolean Sum (GBS) associated operators obtained (see (3)) from given operators.
Ovidiu T. Pop
doaj   +2 more sources

Dunkl generalization of q-Szász-Mirakjan Kantorovich operators which preserve some test functions

open access: yesJournal of Inequalities and Applications, 2016
In this paper we introduce q-Szász-Mirakjan-Kantorovich operators generated by a Dunkl generalization of the exponential function and we propose two different modifications of the q-Szász-Mirakjan-Kantorovich operators which preserve some test functions.
Mohammad Mursaleen   +2 more
doaj   +1 more source

Simultaneous approximation by neural network operators with applications to Voronovskaja formulas

open access: yesMathematische Nachrichten, Volume 298, Issue 3, Page 871-885, March 2025.
Abstract In this paper, we considered the problem of the simultaneous approximation of a function and its derivatives by means of the well‐known neural network (NN) operators activated by the sigmoidal function. Other than a uniform convergence theorem for the derivatives of NN operators, we also provide a quantitative estimate for the order of ...
Marco Cantarini, Danilo Costarelli
wiley   +1 more source

A Voronovskaja-Type Theorem for a Kind of Durrmeyer-Bernstein-Stancu Operators

open access: yesGazi University Journal of Science, 2019
In this paper, we study on a Durrmeyer variant of Bernstein-Stancu operators.  We give a Voronovskaja-type theorem for these type operators. 
DINLEMEZ KANTAR, Ulku, ERGELEN, Gizem
openaire   +4 more sources

Some approximation properties of ( p , q ) $(p,q)$ -Bernstein operators

open access: yesJournal of Inequalities and Applications, 2016
This paper is concerned with the ( p , q ) $(p,q)$ -analog of Bernstein operators. It is proved that, when the function is convex, the ( p , q ) $(p,q)$ -Bernstein operators are monotonic decreasing, as in the classical case.
Shin Min Kang   +4 more
doaj   +1 more source

Stancu type q-Bernstein operators with shifted knots

open access: yesJournal of Inequalities and Applications, 2020
In the present paper, Stancu type generalizations of the q-analog of Lupaş Bernstein operators with shifted knots are introduced. Some approximation results and rate of convergence for these operators are investigated.
M. Mursaleen   +3 more
doaj   +1 more source

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