Results 31 to 40 of about 48,942 (223)

A Caputo fractional derivative-based algorithm for optimization

open access: yesCoRR, 2021
We propose a novel Caputo fractional derivative-based optimization algorithm. Upon defining the Caputo fractional gradient with respect to the Cartesian coordinate, we present a generic Caputo fractional gradient descent (CFGD) method. We prove that the CFGD yields the steepest descent direction of a locally smoothed objective function.
Yeonjong Shin   +2 more
openaire   +2 more sources

On Caputo $k$ -Fractional Derivatives and Associated Inequalities

open access: yesIEEE Access, 2019
This paper studies the k-fractional analogue of the Caputo fractional derivatives, their properties, and applications. A convolution of two functions instead of the product is analyzed by means of Caputo k-fractional derivatives.
Asif Waheed   +5 more
doaj   +1 more source

Caputo-type modification of the Hadamard fractional derivatives [PDF]

open access: yesAdvances in Difference Equations, 2012
Abstract Generalization of fractional differential operators was subjected to an intense debate in the last few years in order to contribute to a deep understanding of the behavior of complex systems with memory effect. In this article, a Caputo-type modification of Hadamard fractional derivatives is introduced. The properties of the modified
Fahd Jarad   +2 more
openaire   +3 more sources

On a New Modification of the Erdélyi–Kober Fractional Derivative

open access: yesFractal and Fractional, 2021
In this paper, we introduce a new Caputo-type modification of the Erdélyi–Kober fractional derivative. We pay attention to how to formulate representations of Erdélyi–Kober fractional integral and derivatives operators.
Zaid Odibat, Dumitru Baleanu
doaj   +1 more source

DIFFERENTIAL EQUATIONS WITH TEMPERED Ψ-CAPUTO FRACTIONAL DERIVATIVE

open access: yesMathematical Modelling and Analysis, 2021
In this paper we define a new type of the fractional derivative, which we call tempered Ψ−Caputo fractional derivative. It is a generalization of the tempered Caputo fractional derivative and of the Ψ−Caputo fractional derivative. The Cauchy problem for fractional differential equations with this type of derivative is discussed and some existence and ...
Medveď, Milan, Brestovanská, Eva
openaire   +4 more sources

Lyapunov Functions to Caputo Fractional Neural Networks with Time-Varying Delays

open access: yesAxioms, 2018
One of the main properties of solutions of nonlinear Caputo fractional neural networks is stability and often the direct Lyapunov method is used to study stability properties (usually these Lyapunov functions do not depend on the time variable).
Ravi Agarwal   +2 more
doaj   +1 more source

Taylor’s Formula for Generalized Weighted Fractional Derivatives with Nonsingular Kernels

open access: yesAxioms, 2022
We prove a new Taylor’s theorem for generalized weighted fractional calculus with nonsingular kernels. The proof is based on the establishment of new relations for nth-weighted generalized fractional integrals and derivatives. As an application, new mean
Houssine Zine   +3 more
doaj   +1 more source

Chaos on the Vallis Model for El Niño with Fractional Operators

open access: yesEntropy, 2016
The Vallis model for El Niño is an important model describing a very interesting physical problem. The aim of this paper is to investigate and compare the models using both integer and non-integer order derivatives.
Badr Saad T. Alkahtani, Abdon Atangana
doaj   +1 more source

Abstract differential equations and Caputo fractional derivative

open access: yesSemigroup Forum, 2022
In this work I consider the abstract Cauchy problems with Caputo fractional time derivative of order $α\in(0,1]$, and discuss the continuity of the respective solutions regarding the parameter $α$. I also present a study about the continuity of the Mittag-Leffler families of operators (for $α\in(0,1]$), induced by sectorial operators.
openaire   +3 more sources

Global Existence and Uniqueness of Solution of Atangana–Baleanu Caputo Fractional Differential Equation with Nonlinear Term and Approximate Solutions

open access: yesInternational Journal of Differential Equations, 2021
In this paper, a class of fractional order differential equation expressed with Atangana–Baleanu Caputo derivative with nonlinear term is discussed.
Meryeme Hassouna   +2 more
doaj   +1 more source

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