Results 21 to 30 of about 2,203 (175)

Genuine q-Stancu-Bernstein–Durrmeyer Operators

open access: yesSymmetry, 2023
In the present paper, we introduce the genuine q-Stancu-Bernstein–Durrmeyer operators Znq,α(f;x). We calculate the moments of these operators, Znq,α(tj;x) for j=0,1,2, which follows a symmetric pattern. We also calculate the second order central moment Znq,α((t−x)2;x).
openaire   +1 more source

Stancu type q-Bernstein operators with shifted knots [PDF]

open access: yesJournal of Inequalities and Applications, 2020
AbstractIn the present paper, Stancu type generalizations of theq-analog of Lupaş Bernstein operators with shifted knots are introduced. Some approximation results and rate of convergence for these operators are investigated. A Voronovskaja type theorem and local approximation results for the mentioned operators are studied.
M. ‎Mursaleen   +3 more
openaire   +2 more sources

Approximation by generalized Bernstein–Stancu operators

open access: yesTURKISH JOURNAL OF MATHEMATICS, 2019
Summary: In this paper, we investigate approximation properties of the Stancu type generalization of the \(\alpha \)-Bernstein operator. We obtain a recurrence relation for moments and the rate of convergence by means of moduli of continuity. Also, we present Voronovskaya and Grüss-Voronovskaya type asymptotic results for these operators.
Nursel ÇETİN, Voichiţa Adriana RADU
openaire   +2 more sources

Kantorovich variant of Stancu operators

open access: yesFilomat, 2022
Stancu type operators play a crucial role in convergence estimates. The present article concerns the convergence estimates for certain Stancu type Kantorovich operators. We first establish some direct formulas giving the local approximation theorem, Voronovskaja type asymptotic formula, bound for the second central moment with some ...
Vijay Gupta, A Anjali
openaire   +1 more source

The modified Bernstein-Stancu operators

open access: yesGeneral Mathematics, 2021
Abstract This paper is dealing with a class of operators fixing exponential functions. We study its convergence and an asymptotic formula is obtained. Finally, a comparison is stated, that shows that in a certain particular cases the new sequence approximates better than the classical ones.
openaire   +1 more source

On a three-body confinement force in hadron spectroscopy [PDF]

open access: yes, 2001
Recently it has been argued that a three-body colour confinement interaction can affect the stability condition of a three-quark system and the spectrum of a tetraquark described by any constituent quark model.
B. Desplanques   +17 more
core   +2 more sources

A Stancu type extension of the Campiti-Metafune operator

open access: yesJournal of Numerical Analysis and Approximation Theory
We consider an extension of the Campiti-Metafune operator using a Stancu type technique. We study some  properties of the new obtained operator.
Teodora Cătinaș
doaj   +1 more source

Stability of pentaquarks with a two- plus three-body chromoelectric interaction

open access: yes, 2017
We study the stability of pentaquarks within a schematic model based on SU(3) color symmetry, by taking into account algebraic arguments leading to a chromoelectric interaction containing two- and three-body parts. It has already been proven that such an
Stancu, Fl.
core   +1 more source

Crucial Dependence of ``Precarious'' and ``Autonomous'' phi^4s Upon the Normal-ordering Mass [PDF]

open access: yes, 1999
Using the Gaussian wave-functional approach with the normal-ordering renormalization prescription, we show that for the (3+1)-dimensional massive lambda phi^4 theory, ``precarious'' and ``autonomous'' phi^4s can exist if and only if the normal-ordering ...
Chang S. J.   +10 more
core   +2 more sources

Approximation Properties by $q$-Durrmeyer-Stancu Operators

open access: yesAnalysis in Theory and Applications, 2013
In this paper, we are dealing with $q$-Bernstein-Durrmeyer-Stancu operators. Firstly, we have estimated moments of these operators. Then we have discussed some approximation properties and asymptotic formulas. We have obtained better estimations by using King type approach and given statistical convergence for the operators.
Mohapatra, Ram, İÇÖZ, GÜRHAN
openaire   +2 more sources

Home - About - Disclaimer - Privacy