Results 91 to 100 of about 58,917 (294)

On qualitative analysis of an ecological dynamics with time delay

open access: yesAsian Journal of Control, EarlyView.
Abstract In this paper, we study a fractional‐order predator–prey system with time delay, where the dynamics are logistic with prey population commensurate to the carrying capacity. Mainly, by linearizing the system around the equilibrium point, we first analyze the stability and then prove the existence of Hopf bifurcation.
Canan Celik, Kubra Degerli
wiley   +1 more source

A Simple and Effective Second-Order Numerical Algorithm for Tempered Fractional Differential Equation With Time Caputo-Tempered Fractional Derivative

open access: yesAdvances in Mathematical Physics
This paper presents an efficient numerical scheme for the space–time tempered fractional convection–diffusion equation, where the time derivative is the Caputo-tempered fractional derivative and the space derivatives are the normalized left and right ...
Dechao Gao   +3 more
doaj   +1 more source

On Coupled Systems of Time-Fractional Differential Problems by Using a New Fractional Derivative

open access: yesJournal of Function Spaces, 2016
The existence of solutions for a coupled system of time-fractional differential equations including continuous functions and the Caputo-Fabrizio fractional derivative is examined.
Ahmed Alsaedi   +3 more
doaj   +1 more source

Psi-Caputo Logistic Population Growth Model

open access: yesJournal of Mathematics, 2021
This article studies modeling of a population growth by logistic equation when the population carrying capacity K tends to infinity. Results are obtained using fractional calculus theories.
Muath Awadalla   +2 more
doaj   +1 more source

Uniqueness for weak solutions of parabolic equations with a fractional time derivative

open access: yes, 2018
We prove uniqueness for weak solutions to abstract parabolic equations with the fractional Marchaud or Caputo time derivative. We consider weak solutions in time for divergence form equations when the fractional derivative is transferred to the test ...
Allen, Mark
core   +1 more source

The Effect of the Caputo Fractional Derivative on Polynomiography

open access: yesMathematics Interdisciplinary Research, 2023
‎This paper presents the visualization process of finding the roots of a complex polynomial‎ - ‎which is called polynomiography‎ - ‎by the Caputo fractional derivative‎. ‎In this work‎, ‎we substitute the variable-order Caputo fractional derivative for classic derivative in Newton's iterative method‎. ‎To investigate the proposed root-finding method‎, ‎
openaire   +2 more sources

Interval‐valued Caputo–Fabrizio fractional derivative in continuous programming

open access: yesAsian Journal of Control, EarlyView.
Abstract This study investigates a novel class of variational programming problems characterized by fractional interval values, formulated under the Caputo–Fabrizio fractional derivative with an exponential kernel. Invex and generalized invex functions are used to discuss the Mond–Weir‐type dual problem for the considered variational problem.
Krishna Kummari   +2 more
wiley   +1 more source

Necessary and sufficient conditions for the fractional calculus of variations with Caputo derivatives

open access: yes, 2010
We prove optimality conditions for different variational functionals containing left and right Caputo fractional derivatives. A sufficient condition of minimization under an appropriate convexity assumption is given.
Agrawal   +31 more
core   +1 more source

Fractional variational principles with delay within caputo derivatives

open access: yesReports on Mathematical Physics, 2010
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Jarad, Fahd   +2 more
openaire   +2 more sources

Home - About - Disclaimer - Privacy