Results 21 to 30 of about 606,824 (183)

Nonlinear operator extensions of Korovkin's theorems

open access: yesPositivity, 2023
Abstract In this paper we extend Korovkin's theorem to the context of sequences of weakly nonlinear and monotone operators defined on certain Banach function spaces. Several examples illustrating the theory are included. Date: August 29, 2023. 2000 Mathematics Subject Classification. 41A35, 41A36, 41A63.
Gal, Sorin G., Niculescu, Constantin P.
openaire   +3 more sources

Abstract Korovkin type theorems on modular spaces by $\mathscr{A}$-summability [PDF]

open access: yesMathematica Bohemica, 2018
Our aim is to change classical test functions of Korovkin theorem on modular spaces by using $\mathscr{A}$-summability.
Emre Taş
doaj   +1 more source

Approximation properties of modified Jain-Gamma operators

open access: yesKarpatsʹkì Matematičnì Publìkacìï, 2021
In the present paper, we study some approximation properties of a modified Jain-Gamma operator. Using Korovkin type theorem, we first give approximation properties of such operator.
S. Erdogan, A. Olgun
doaj   +1 more source

Higher order Kantorovich-type Szász–Mirakjan operators

open access: yesJournal of Inequalities and Applications, 2022
In this paper, we define new higher order Kantorovich-type Szász–Mirakjan operators, we give some approximation properties of these operators in terms of various moduli of continuity. We prove a local approximation theorem, a Korovkin-type theorem, and a
Pembe Sabancigil   +2 more
doaj   +1 more source

On Relaxing the Identity Operator in Korovkin Theorem via Statistical Convergence

open access: yesTurkish journal of mathematics & computer science, 2023
An operator version of the Korovkin theorem has recently been obtained by D. Popa. With the motivation of this result, we have extended it by using a more powerful convergence which also includes ordinary convergence. We have also presented an example to
T. Yurdakadim, E. Tas
semanticscholar   +1 more source

Some variations of the Bohman-Korovkin theorem

open access: yesMathematical and Computer Modelling, 2009
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Ö. G. Atlihan, H. Ince, C. Orhan
semanticscholar   +4 more sources

A new type of Szász–Mirakjan operators based on q-integers

open access: yesJournal of Inequalities and Applications, 2023
In this article, by using the notion of quantum calculus, we define a new type Szász–Mirakjan operators based on the q-integers. We derive a recurrence formula and calculate the moments Φ n , q ( t m ; x ) $\Phi _{n,q}(t^{m};x)$ for m = 0 , 1 , 2 $m=0,1 ...
Pembe Sabancigil   +2 more
doaj   +1 more source

On a discrete Korovkin theorem

open access: yesJournal of Approximation Theory, 1990
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
G. Anastassiou
semanticscholar   +3 more sources

On a Family of Parameter‐Based Bernstein Type Operators with Shape‐Preserving Properties

open access: yesJournal of Mathematics, Volume 2023, Issue 1, 2023., 2023
This article aims to introduce a new linear positive operator with a parameter. Our focus lies in analyzing the distinct characteristics and inherent properties exhibited by this operator. Additionally, we provide a proof of the convergence rate and present a revised version of the Voronovskaja theorem specifically tailored for this newly defined ...
Bahareh Nouri   +2 more
wiley   +1 more source

The Approximation of a Modified Baskakov Operator

open access: yesJournal of Mathematics, Volume 2023, Issue 1, 2023., 2023
Because of their simple form and high quality, linear arithmetical operators, particularly linear positive operators, are very popular. The number of in‐depth studies on linear operator approximation is extensive, and the majority of the published material falls into four categories: types and structures of operators, approximation of operators, order ...
Ma Yingdian, Wang Weimeng, Naeem Jan
wiley   +1 more source

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