Results 11 to 20 of about 408 (175)

Some k-fractional extension of Grüss-type inequalities via generalized Hilfer–Katugampola derivative [PDF]

open access: yesAdvances in Difference Equations, 2021
In this paper, we prove several inequalities of the Grüss type involving generalized k-fractional Hilfer–Katugampola derivative. In 1935, Grüss demonstrated a fascinating integral inequality, which gives approximation for the product of two functions ...
Samaira Naz   +2 more
doaj   +6 more sources

Fractional Gradient Methods via ψ-Hilfer Derivative

open access: yesFractal and Fractional, 2023
Motivated by the increase in practical applications of fractional calculus, we study the classical gradient method under the perspective of the ψ-Hilfer derivative.
Nelson Vieira   +2 more
doaj   +4 more sources

Anomalous Relaxation in Dielectrics with Hilfer Fractional Derivative [PDF]

open access: yesJournal of Applied Nonlinear Dynamics, 2021
Summary: We introduce a new relaxation function depending on an arbitrary parameter as a solution of a kinetic equation in the same way as the relaxation function introduced empirically by Debye, Cole-Cole, Davidson-Cole and Havriliak-Negami regarding, anomalous relaxation in dielectrics, which are recovered as particular cases.
Gómez Plata, A. R.   +2 more
openaire   +2 more sources

$q$-ANALOGUE OF HILFER-KATUGAMPOLA FRACTIONAL DERIVATIVES AND APPLICATIONS

open access: yesSouth East Asian Journal of Mathematics and Mathematical Sciences, 2023
Anovel qp-variant of the q−Mittag-Leffler functionandaquantum analoguepDα,β a±,qoftheHilfer-Katugampolafractionalderivativearedefined.Then, generalizationsoftheq−Taylor’sformulaandtheq−differentialtransformandits inverseareobtainedusingtheoperator pDα,β a±,q. Additionally, afewpropertiesof thenewlydefinedq-differential transformareestablished. Finally,
Mallah, Ishfaq Ahmad   +2 more
openaire   +2 more sources

On a Differential Equation Involving Hilfer‐Hadamard Fractional Derivative [PDF]

open access: yesAbstract and Applied Analysis, 2012
This paper studies a fractional differential inequality involving a new fractional derivative (Hilfer‐Hadamard type) with a polynomial source term. We obtain an exponent for which there does not exist any global solution for the problem. We also provide an example to show the existence of solutions in a wider space for some exponents.
Qassim, M. D.   +2 more
openaire   +4 more sources

Euler–Lagrange equations for variational problems involving the Riesz–Hilfer fractional derivative

open access: yesJournal of Taibah University for Science, 2020
In this paper, we obtain the Euler-Lagrange equations for different kind of variational problems with the Lagrangian function containing the Riesz-Hilfer fractional derivative.
A. G. Ibrahim, A. A. Elmandouh
doaj   +1 more source

Null Controllability of Hilfer Fractional Stochastic Differential Inclusions

open access: yesFractal and Fractional, 2022
This paper gives the null controllability for nonlocal stochastic differential inclusion with the Hilfer fractional derivative and Clarke subdifferential.
Hamdy M. Ahmed   +3 more
doaj   +1 more source

Existence of Mild Solutions for a Class of Impulsive Hilfer Fractional Coupled Systems

open access: yesAdvances in Mathematical Physics, 2020
The aim of this paper is to give existence results for a class of coupled systems of fractional integrodifferential equations with Hilfer fractional derivative in Banach spaces.
Karim Guida   +2 more
doaj   +1 more source

New Numerical Algorithm to Solve Variable-Order Fractional Integrodifferential Equations in the Sense of Hilfer-Prabhakar Derivative

open access: yesAbstract and Applied Analysis, 2021
In this article, a numerical technique based on the Chebyshev cardinal functions (CCFs) and the Lagrange multiplier technique for the numerical approximation of the variable-order fractional integrodifferential equations are shown.
MohammadHossein Derakhshan
doaj   +1 more source

Impulsive Hilfer fractional differential equations

open access: yesAdvances in Difference Equations, 2018
Existence and controllability results for nonlinear Hilfer fractional differential equations are studied. Sufficient conditions for existence and approximate controllability for Sobolev-type impulsive fractional differential equations are established ...
Hamdy M. Ahmed   +3 more
doaj   +1 more source

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