Results 21 to 30 of about 1,439 (263)

On modulus of continuity of differentiation operator on weighted Sobolev classes [PDF]

open access: yesJournal of Inequalities and Applications, 2015
In this paper we investigate the modulus of continuity of differential operator of order $k$, $k\in\mathbb{N}$, on the classes of functions defined on half-line that have positive non-increasing continuous majorants of functions and their higher derivatives.
Babenko, Vladislav F, Kovalenko, Oleg V
openaire   +2 more sources

Approximation on a class of Phillips operators generated by q-analogue

open access: yesJournal of Inequalities and Applications, 2020
The main purpose of this article is to introduce a new generalization of q-Phillips operators generated by Dunkl exponential function. We establish some approximation results for these operators. We also determine the order of approximation, and the rate
Abdullah Alotaibi
doaj   +1 more source

Approximation by bivariate generalized sampling series in weighted spaces of functions

open access: yes, 2023
<p>In this paper, we study weighted approximation by bivariate generalized sampling series. Considering polynomially weighted spaces of bivariate functions we obtain pointwise and uniform convergence of the series.
Acar, Tuncer, Turgay, Metin
core   +1 more source

On the Generalized Baskakov Durrmeyer Operators

open access: yesSakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2019
The main object of this paper is to construct Baskakov Durrmeyer type operators such that their construction depends on a function ρ. Using the weighted modulus of continuity, we show the uniform convergence of the operators. Moreover we obtain pointwise
Gülsüm Ulusoy
doaj   +1 more source

Dunkl generalization of Phillips operators and approximation in weighted spaces [PDF]

open access: yes, 2020
The purpose of this article is to introduce a modification of Phillips operators on the interval [12,∞) via a Dunkl generalization. We further define the Stancu type generalization of these operators as S∗n,υ(f;x)=n2eυ(nχn(x))∑∞ℓ=0(nχn(x))ℓγυ(ℓ)∫∞0e−ntnℓ+
Kilicman, Adem   +3 more
core   +1 more source

Remark on weighted approximation properties of generalized Picard operators [PDF]

open access: yes, 2013
Bascanbaz-Tunca, Gulen/0000-0003-3216-1661In this article, we still hold the study of the generalized Picard operators P-lambda,P-beta (f; q) depending on nonisotropic beta-distance given in [3]. By continuing to deal with the nonisotropic weighted L-p,L-
Yilmaz, Basar   +5 more
core   +1 more source

WEIGHTED GREEN FUNCTIONS FOR COMPLEX HESSIAN OPERATORS

open access: yes, 2023
International audienceLet 1 ≤ m ≤ n be two fixed integers. Let Ω be a bounded m-hyperconvex domain in C^n and A ⊂ Ω×]0, +∞[ a finite set of weighted poles.
Zeriahi, Ahmed, El Aini, Hadhami
core   +1 more source

Approximation by $p$-Faber-Laurent rational functions in the weighted Lebesgue spaces [PDF]

open access: yes, 2004
summary:Let $L\subset C$ be a regular Jordan curve. In this work, the approximation properties of the $p$-Faber-Laurent rational series expansions in the $\omega $ weighted Lebesgue spaces $L^p(L,\omega )$ are studied.
Israfilov, Daniyal M.
core   +1 more source

Approximation by Szász-Jakimovski-Leviatan-Type Operators via Aid of Appell Polynomials

open access: yesJournal of Function Spaces, 2020
The main purpose of the present article is to construct a newly Szász-Jakimovski-Leviatan-type positive linear operators in the Dunkl analogue by the aid of Appell polynomials.
Md. Nasiruzzaman, A. F. Aljohani
doaj   +1 more source

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