Results 31 to 40 of about 25,622 (147)

On One- and Two-Dimensional α–Stancu–Schurer–Kantorovich Operators and Their Approximation Properties

Mathematics, 2022
The goal of this research article is to introduce a sequence of α–Stancu–Schurer–Kantorovich operators. We calculate moments and central moments and find the order of approximation with the aid of modulus of continuity.
Md. Heshamuddin, Nadeem Rao, Bishnu P. Lamichhane, Adem Kiliçman, Mohammad Ayman-Mursaleen   +4 more
doaj   +1 more source

Non-probabilistic proof of the A_2 theorem, and sharp weighted bounds for the q-variation of singular integrals

, 2012
Any Calderon-Zygmund operator T is pointwise dominated by a convergent sum of positive dyadic operators. We give an elementary self-contained proof of this fact, which is simpler than the probabilistic arguments used for all previous results in this ...
Hytönen, Tuomas P., Lacey, Michael T., Pérez, Carlos   +2 more
core   +1 more source

On Stancu-Type Generalization of Modified p,q-Szász-Mirakjan-Kantorovich Operators

Journal of Function Spaces, 2021
In the present article, we construct p,q-Szász-Mirakjan-Kantorovich-Stancu operators with three parameters λ,α,β. First, the moments and central moments are estimated.
Yong-Mo Hu, Wen-Tao Cheng, Chun-Yan Gui, Wen-Hui Zhang   +3 more
doaj   +1 more source

Weighted Theorems on Fractional Integrals in the Generalized Hölder Spaces via Indices mω and Mω [PDF]

, 2004
Mathematics Subject Classification: 26A16, 26A33, 46E15.There are known various statements on weighted action of one-dimensional and multidimensional fractional integration operators in spaces of continuous functions, such as weighted generalized Hölder ...
Karapetyants, Nikolai, Samko, Natasha
core  

(p,q)-Generalization of Szasz-Mirakyan Operators

, 2015
In this paper, we introduce new modifications of Szasz-Mirakyan operators based on (p,q)-integers. We first give a recurrence relation for the moments of new operators and present explicit formula for the moments and central moments up to order 4.
Acar, Tuncer
core   +1 more source

Further results for the Dunkl Transform and the generalized Ces\`aro operator [PDF]

, 2012
In this paper, we consider Dunkl theory on R^d associated to a finite reflection group. This theory generalizes classical Fourier anal- ysis. First, we give for 1 < p
Abdelkefi, Chokri, Rached, Faten
core  

Restricted Beurling transforms on Campanato spaces

, 2016
Let $\Omega\subset \mathbb{C}$ be a bounded domain with $\mathcal{C}^{1,\omega}$-smooth boundary, where $\omega$ is a Dini-smooth modulus of continuity.
Doubtsov, Evgueni, Vasin, Andrei V.
core   +1 more source

On the approximation of Kantorovich-type Szàsz-Charlier operators

Demonstratio Mathematica
In this study, we introduce the Kantorovich-type modified Szàsz-Charlier operators and examine their approximation properties within the framework of fractional modeling and control theory. These operators are defined using the Korovkin-type theorem, and
Karabıyık Ümit, Ayık Adem
doaj   +1 more source

Modulus on graphs as a generalization of standard graph theoretic quantities

, 2015
This paper presents new results for the modulus of families of walks on a graph---a discrete analog of the modulus of curve families due to Beurling and Ahlfors. Particular attention is paid to the dependence of the modulus on its parameters.
Albin, Nathan, Brunner, Megan, Perez, Roberto, Poggi-Corradini, Pietro, Wiens, Natalie   +4 more
core   +1 more source

Approximation Properties of the Strong Difference Operators

Ibn Al-Haitham Journal for Pure and Applied Sciences, 2017
    In this paper , we study some approximation  properties of the strong difference and study the relation between the strong difference and the weighted modulus of ...
S. K. Al-Saidy, A. A. Hamood
doaj