Results 11 to 20 of about 7,340,674 (138)

Weighted Korovkin-Type Theorem and Some Properties of Szász–Mirakjan Operators Preserving Exponential Functions via Power Series Statistical Convergence

open access: yesJournal of Function Spaces
In this article, we establish a weighted Korovkin-type approximation theorem within the framework of power series statistical convergence and provide a systematic extension of classical Korovkin theory to weighted function spaces.
Dilek Söylemez
doaj   +2 more sources

A Korovkin Type Approximation Theorem and Its Applications [PDF]

open access: yesAbstract and Applied Analysis, 2014
We present a Korovkin type approximation theorem for a sequence of positive linear operators defined on the space of all real valued continuous and periodic functions via A-statistical approximation, for the rate of the third order Ditzian-Totik modulus ...
Malik Saad Al-Muhja
doaj   +2 more sources

Korovkin-Type Theorems for Modular Ψ-A-Statistical Convergence [PDF]

open access: yesJournal of Function Spaces, 2015
We deal with a new type of statistical convergence for double sequences, called Ψ-A-statistical convergence, and we prove a Korovkin-type approximation theorem with respect to this type of convergence in modular spaces.
Carlo Bardaro   +4 more
doaj   +2 more sources

Relative Alpha Convergence and Its Applications in Approximation Theory

open access: yesJournal of Mathematics
In this paper, we introduce refined notions related to convergence for sequences of functions. These include relative alpha convergence and relative continuity at a point with respect to a scale function, as localized and strict parametric variants of ...
Alper Erdem, Sevda Yıldız
doaj   +2 more sources

KOROVKIN THEOREM VIA STATISTICAL e-MODULAR CONVERGENCE OF DOUBLE SEQUENCES [PDF]

open access: yesSakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2018
In the present paper, we obtain an abstract version of the Korovkin type theorem via the concept of statistical e-convergence in modular spaces for double sequences of positive linear operators.
Sevda Yıldız
doaj   +2 more sources

On Various Modes of Convergence and Notions of Exhaustiveness With Korovkin-Type Theorems

open access: yesJournal of Mathematics
In this paper, we introduce refined notions related to convergence and exhaustiveness for sequences of functions defined between metric spaces. These include rigid uniform alpha convergence as a strengthened variant of alpha convergence, along with ...
Alper Erdem, Tuncay Tunç
doaj   +2 more sources

A Korovkin-type theorem for set-valued Hausdorff continuous functions

open access: yesLe Matematiche, 1987
In this paper, we give a generalization of a Korovkin-type theorem for set-valued Hausdorff continuous functions (cf. [1] and [2]), by means of upper and lower envelopes.
Michele Campiti
doaj   +1 more source

Korovkin type approximation theorem for functions of two variables via statistical summability (C, 1)

open access: yesActa Scientiarum: Technology, 2015
The concept of statistical summability (C, 1) has recently been introduced by Moricz (2002). In this paper, we use this notion of summability to prove the Korovkin type approximation theorem for functions of two variables. Finally we construct an example
Mohammad Mursaleen   +1 more
doaj   +2 more sources

Fuzzy Korovkin type Theorems via deferred Cesaro and deferred Euler equi-statistical convergence

open access: yesJournal of Numerical Analysis and Approximation Theory, 2023
We establish a fuzzy Korovkin type approximation theorem by using \(eq-stat^{D}_{CE}\)(deferred Ces\'{a}ro and deferred Euler equi-statistical) convergence proposed by Saini et al. for continuous functions over \([a,b]\).
Purshottam Agrawal, Behar Baxhaku
doaj   +1 more source

Convergence of λ-Bernstein operators based on (p, q)-integers

open access: yesJournal of Inequalities and Applications, 2020
In the present paper, we construct a new class of positive linear λ-Bernstein operators based on (p, q)-integers. We obtain a Korovkin type approximation theorem, study the rate of convergence of these operators by using the conception of K-functional ...
Qing-Bo Cai, Wen-Tao Cheng
doaj   +1 more source

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