Results 21 to 30 of about 39,837 (259)

Controlling fractional difference equations using feedback

open access: yesChaos, Solitons & Fractals, 2023
One of the most popular methods of controlling dynamical systems is feedback. It can be used without acquiring detailed knowledge of the underlying system. In this work, we study the stability of fractional-order linear difference equations under feedback. The stability results are derived for an arbitrary feedback time $τ$. We study the cases of $τ=1$
Divya D. Joshi   +2 more
openaire   +2 more sources

Two numerical methods for fractional partial differential equation with nonlocal boundary value problem

open access: yesAdvances in Difference Equations, 2018
The exact solution of fractional telegraph partial differential equation of nonlocal boundary value problem is obtained. The theorem of stability estimates is presented for this equation.
Mahmut Modanlı
doaj   +1 more source

Fractional Differential Equations in Terms of Comparison Results and Lyapunov Stability with Initial Time Difference

open access: yesAbstract and Applied Analysis, 2010
The qualitative behavior of a perturbed fractional-order differential equation with Caputo's derivative that differs in initial position and initial time with respect to the unperturbed fractional-order differential equation with Caputo's derivative has ...
Coşkun Yakar
doaj   +1 more source

Fractional Divided Differences and the Solution of Differential Equations of Fractional Order

open access: yesAdvances in Applied Mathematics, 2000
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
David Elizarraraz, Luis Verde-Star
openaire   +1 more source

Commensurate and Non-Commensurate Fractional-Order Discrete Models of an Electric Individual-Wheel Drive on an Autonomous Platform

open access: yesEntropy, 2020
This paper presents integer and linear time-invariant fractional order (FO) models of a closed-loop electric individual-wheel drive implemented on an autonomous platform. Two discrete-time FO models are tested: non-commensurate and commensurate.
Marcin Bąkała   +4 more
doaj   +1 more source

Modified implicit fractional difference scheme for 2D modified anomalous fractional sub-diffusion equation

open access: yesAdvances in Difference Equations, 2017
In this paper, we solve two-dimensional modified anomalous fractional sub-diffusion equation using modified implicit finite difference approximation. The stability and convergence of the proposed scheme are analyzed by the Fourier series method.
Umair Ali   +2 more
doaj   +1 more source

Nonlinear discrete fractional sum inequalities related to the theory of discrete fractional calculus with applications

open access: yesAdvances in Difference Equations, 2021
By means of ς fractional sum operator, certain discrete fractional nonlinear inequalities are replicated in this text. Considering the methodology of discrete fractional calculus, we establish estimations of Gronwall type inequalities for unknown ...
Zareen A. Khan   +3 more
doaj   +1 more source

Numerical solution for space and time fractional order Burger type equation

open access: yesAlexandria Engineering Journal, 2018
In this paper, we study the fractional differential operators thereby considering the space and time order Burger type equation with initial condition. The extended finite difference method which is based on shifted Grünwald, Caputo and Riemann formulas ...
Asıf Yokus
doaj   +1 more source

Discrete fractional calculus with exponential memory: Propositions, numerical schemes and asymptotic stability

open access: yesNonlinear Analysis, 2023
A new fractional difference with an exponential kernel function is proposed in this study. First, a difference operator is defined by the exponential function.
Guang Yang, Guo-Cheng Wu, Hui Fu
doaj   +3 more sources

Modeling with fractional difference equations

open access: yesJournal of Mathematical Analysis and Applications, 2010
A fractional sum of a function \(f\) is introduced as \[ \Delta _{a}^{-\alpha}f(t)=\frac{1}{\Gamma (\alpha )}\sum_{s=a}^{t-\alpha }(t-s-1)^{(\alpha -1)}f(s), \] where \(a\in R,\) \(\alpha >0\), \(x^{(\alpha )}=\Gamma (x+1)/\Gamma (x-\alpha +1),\) \(f\) is defined for \(s=a\;(\text{mod }1),\) and \(\Delta _{a}^{-\alpha }f\) is defined for \(t=a+\alpha \;
Atıcı, Ferhan M., Şengül, Sevgi
openaire   +2 more sources

Home - About - Disclaimer - Privacy