Results 21 to 30 of about 158,926 (265)

The q-derivative and applications to q-Szász Mirakyan operators

open access: yesCalcolo, 2006
The article is devoted to investigation of so-called \(q\)-Szász Mirakyan operators introduced recently by one of the authors. These operators are defined in the following way. For \(f\in C\left[0,\infty\right)\), \(q\in\left(0,1\right)\) and each natural \(n\) \[ S_n^q\left(f;x\right)\equiv S_n^q\left(f\right)\left(x\right)= E_q\left(-\left[n\right]_q{
Aral, Ali, Gupta, Vijay
openaire   +1 more source

Coefficient inequalities for classes of univalent functions defined by q derivatives

open access: yesBoletim da Sociedade Paranaense de Matemática, 2022
Using the principal of subordination and the qderivative, we  obtain sharp bounds for some classes of univalent functions.
M. K. Aouf, Adela O. Mostafa, N. E. Cho
openaire   +3 more sources

Existence and uniqueness results to positive solutions of integral boundary value problem for fractional q-derivatives

open access: yesAdvances in Difference Equations, 2018
In this paper,we are interested in the existence and uniqueness of positive solutions for integral boundary value problem with fractional q-derivative: Dqαu(t)+f(t,u(t),u(t))+g(t,u(t))=0 ...
Furi Guo, Shugui Kang, Fu Chen
doaj   +1 more source

Derivate e q-derivate

open access: yes, 2021
Il testo propone alcuni esercizi su derivate e q-derivate. La q-derivazione, che appartiene al q-calcolo, diventa quella ordinaria al limite per il parametro q tendente a 1. Le appendici sono dedicate alle derivate ordinarie.
openaire   +11 more sources

A new q-integral identity and estimation of its bounds involving generalized exponentially μ-preinvex functions

open access: yesAdvances in Difference Equations, 2020
In the article, we introduce the generalized exponentially μ-preinvex function, derive a new q-integral identity for second order q-differentiable function, and establish several new q-trapezoidal type integral inequalities for the function whose ...
Muhammad Uzair Awan   +5 more
doaj   +1 more source

A note on convolution of Janowski type functions with q-derivative

open access: yesActa Universitatis Sapientiae, Mathematica, 2023
Abstract The purpose of the present paper is to introduce and study new subclasses of analytic functions which generalize the classes of Janowski functions with q-derivative. We also study certain a convolution conditions, and apply the convolution conditions to get sufficient condition and the neighborhood results related to the ...
openaire   +3 more sources

On quantum trigonometric fractional calculus

open access: yesAlexandria Engineering Journal
In this research work, we introduce an innovative concept known as the q-trigonometric derivative within the framework of the Caputo derivative. Our approach begins by introducing a novel notion of a trigonometric q-derivative and thoroughly examining ...
Lakhlifa Sadek, Ali Algefary
doaj   +1 more source

On the q−derivatives of a new sequence of operators

open access: yesLe Matematiche, 2013
In this paper we obtain moment estimates for a new sequence of q−operators very recently introduced by Aral and Gupta [1]. We obtain degree of approximation by the q−derivatives of these operators. We show that for a fixed q, these operators do not possess simultaneous approximation properties.
Asha Ram Gairola, Girish Dobhal
openaire   +2 more sources

Structural scale q-derivative and the LLG equation in a scenario with fractionality [PDF]

open access: yesEPL (Europhysics Letters), 2017
In the present contribution, we study the Landau-Lifshitz-Gilbert equation with two versions of structural derivatives recently proposed: the scale $q-$derivative in the non-extensive statistical mechanics and the axiomatic metric derivative, which presents Mittag-Leffler functions as eigenfunctions.
Weberszpil, José   +1 more
openaire   +2 more sources

On q-Operators and Summation of Some q-Series

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2010
Using Jackson's q-derivative and the q-Stirling numbers, we establish some transformation theorems leading to the values of some convergent q-series.
Sana Guesmi, Ahmed Fitouhi
doaj   +1 more source

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