An Efficient Nonstandard Finite Difference Scheme for Chaotic Fractional-Order Chen System

In this paper, an efficient nonstandard finite difference scheme for the numerical solution of chaotic fractional-order Chen system is developed. In the new method, an appropriate nonlocal framework in conjunction with the Grünwald-Letnikov approximation are applied for the discretization...

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Main Authors: Beijia Wang, Liang Li, Yaowu Wang
Format: Article
Language:English
Published: IEEE 2020-01-01
Series:IEEE Access
Subjects:
Online Access:https://ieeexplore.ieee.org/document/9097844/
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author Beijia Wang
Liang Li
Yaowu Wang
author_facet Beijia Wang
Liang Li
Yaowu Wang
author_sort Beijia Wang
collection DOAJ
description In this paper, an efficient nonstandard finite difference scheme for the numerical solution of chaotic fractional-order Chen system is developed. In the new method, an appropriate nonlocal framework in conjunction with the Grünwald-Letnikov approximation are applied for the discretization of fractional differential system. By constructing the discretization with the nonstandard finite difference scheme, high resolution of the system can be obtained, and the numerical instabilities of the nonlinear fractional-order Chen chaotic system can be also addressed to some extent. In addition, a new fractional derivative of the Caputo type is employed in the context of fractional-order Chen system to further decrease the computational complexity in the long-term treatment of fractional model. Numerical simulations demonstrate the applicability, accuracy and efficiency of the developed method.
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spelling doaj.art-b70bbd9999534f5b963d26e88f156ef32022-12-22T03:12:33ZengIEEEIEEE Access2169-35362020-01-018984109842110.1109/ACCESS.2020.29962719097844An Efficient Nonstandard Finite Difference Scheme for Chaotic Fractional-Order Chen SystemBeijia Wang0Liang Li1https://orcid.org/0000-0002-2273-0966Yaowu Wang2Key Laboratory of Structures Dynamic Behavior and Control, Ministry of Education, Harbin Institute of Technology, Harbin, ChinaKey Laboratory of Structures Dynamic Behavior and Control, Ministry of Education, Harbin Institute of Technology, Harbin, ChinaKey Laboratory of Structures Dynamic Behavior and Control, Ministry of Education, Harbin Institute of Technology, Harbin, ChinaIn this paper, an efficient nonstandard finite difference scheme for the numerical solution of chaotic fractional-order Chen system is developed. In the new method, an appropriate nonlocal framework in conjunction with the Grünwald-Letnikov approximation are applied for the discretization of fractional differential system. By constructing the discretization with the nonstandard finite difference scheme, high resolution of the system can be obtained, and the numerical instabilities of the nonlinear fractional-order Chen chaotic system can be also addressed to some extent. In addition, a new fractional derivative of the Caputo type is employed in the context of fractional-order Chen system to further decrease the computational complexity in the long-term treatment of fractional model. Numerical simulations demonstrate the applicability, accuracy and efficiency of the developed method.https://ieeexplore.ieee.org/document/9097844/Fractional differential equationschaotic systemnonstandard finite differencefractional derivativechangeable memory
spellingShingle Beijia Wang
Liang Li
Yaowu Wang
An Efficient Nonstandard Finite Difference Scheme for Chaotic Fractional-Order Chen System
IEEE Access
Fractional differential equations
chaotic system
nonstandard finite difference
fractional derivative
changeable memory
title An Efficient Nonstandard Finite Difference Scheme for Chaotic Fractional-Order Chen System
title_full An Efficient Nonstandard Finite Difference Scheme for Chaotic Fractional-Order Chen System
title_fullStr An Efficient Nonstandard Finite Difference Scheme for Chaotic Fractional-Order Chen System
title_full_unstemmed An Efficient Nonstandard Finite Difference Scheme for Chaotic Fractional-Order Chen System
title_short An Efficient Nonstandard Finite Difference Scheme for Chaotic Fractional-Order Chen System
title_sort efficient nonstandard finite difference scheme for chaotic fractional order chen system
topic Fractional differential equations
chaotic system
nonstandard finite difference
fractional derivative
changeable memory
url https://ieeexplore.ieee.org/document/9097844/
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