Results 11 to 20 of about 6,540 (265)

Collocation Method for Optimal Control of a Fractional Distributed System

open access: yesFractal and Fractional, 2022
In this paper, a collocation method based on the Jacobi polynomial is proposed for a class of optimal-control problems of a fractional distributed system. By using the Lagrange multiplier technique and fractional variational principle, the stated problem
Wen Cao, Yufeng Xu
doaj   +1 more source

Numerical Solution of Caputo-Fabrizio Time Fractional Distributed Order Reaction-diffusion Equation via Quasi Wavelet based Numerical Method [PDF]

open access: yesJournal of Applied and Computational Mechanics, 2020
In this paper, we derive a novel numerical method to find out the numerical solution of fractional partial differential equations (PDEs) involving Caputo-Fabrizio (C-F) fractional derivatives. We first find out the approximation formula of C-F derivative
Sachin Kumar   +1 more
doaj   +1 more source

Fractional diffusion equation with distributed-order Caputo derivative [PDF]

open access: yesJournal of Integral Equations and Applications, 2019
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Kubica, Adam, Ryszewska, Katarzyna
openaire   +2 more sources

Fractional diffusion equation with distributed-order material derivative. Stochastic foundations [PDF]

open access: yesJournal of Physics A: Mathematical and Theoretical, 2017
In this paper we present stochastic foundations of fractional dynamics driven by fractional material derivative of distributed order-type. Before stating our main result we present the stochastic scenario which underlies the dynamics given by fractional material derivative.
Magdziarz, M., Teuerle, M.
openaire   +3 more sources

Recovery of a distributed order fractional derivative in an unknown medium

open access: yesCommunications in Mathematical Sciences, 2023
In this work, we study an inverse problem of recovering information about the weight in distributed-order time-fractional diffusion from the observation at one single point on the domain boundary. In the absence of an explicit knowledge of the medium, we prove that the one-point observation can uniquely determine the support bound of the weight.
Jin, B, Kian, Y
openaire   +3 more sources

Time-fractional telegraph equation of distributed order in higher dimensions with Hilfer fractional derivatives

open access: yesElectronic Research Archive, 2022
<abstract><p>In this paper, we consider the time-fractional telegraph equation of distributed order in higher spatial dimensions, where the time derivative is in the sense of Hilfer, thus interpolating between the Riemann-Liouville and the Caputo fractional derivatives.
Vieira, Nelson   +2 more
openaire   +4 more sources

Analytical Solutions of the Diffusion–Wave Equation of Groundwater Flow with Distributed-Order of Atangana–Baleanu Fractional Derivative

open access: yesApplied Sciences, 2021
A generalized mathematical model of the radial groundwater flow to or from a well is studied using the time-fractional derivative with Mittag-Lefler kernel.
Nehad Ali Shah   +4 more
doaj   +1 more source

Remarks on fractional derivatives of distributions*

open access: yesTbilisi Mathematical Journal, 2017
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Li, Chenkuan, Li, Changpin
openaire   +3 more sources

A computational approach for a system of coupled distributed-order fractional Klein–Gordon–Schrödinger equations

open access: yesResults in Physics, 2023
In this study, a system of coupled distributed-order fractional Klein–Gordon–Schrödinger equations is introduced. The distributed-order fractional derivative is generated based on the Caputo fractional differentiation.
M.H. Heydari
doaj   +1 more source

p-Moment Mittag–Leffler Stability of Riemann–Liouville Fractional Differential Equations with Random Impulses

open access: yesMathematics, 2020
Fractional differential equations with impulses arise in modeling real world phenomena where the state changes instantaneously at some moments. Often, these instantaneous changes occur at random moments.
Ravi Agarwal   +3 more
doaj   +1 more source

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