Results 41 to 50 of about 497 (121)

Approximation properties of multivariate exponential sampling series

open access: yesKarpatsʹkì Matematičnì Publìkacìï, 2021
In this paper, we generalize the family of exponential sampling series for functions of $n$ variables and study their pointwise and uniform convergence as well as the rate of convergence for the functions belonging to space of $\log$-uniformly continuous
S. Kurşun   +3 more
doaj   +1 more source

Local and global results for modified Sz\'{a}sz - Mirakjan operators

open access: yes, 2016
In this paper, we study a natural modification of Sz\'{a}sz - Mirakjan operators. It is shown by discussing many important established results for Sz\'{a}sz - Mirakjan operators.
null null   +2 more
core   +1 more source

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

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

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

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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