A review on variable-order fractional differential equations: mathematical foundations, physical models, numerical methods and applications

HG Sun, A Chang, Y Zhang, W Chen - Fractional Calculus and …, 2019 - degruyter.com
Variable-order (VO) fractional differential equations (FDEs) with a time (t), space (x) or other
variables dependent order have been successfully applied to investigate time and/or space …

Applications of variable-order fractional operators: a review

S Patnaik, JP Hollkamp… - Proceedings of the …, 2020 - royalsocietypublishing.org
Variable-order fractional operators were conceived and mathematically formalized only in
recent years. The possibility of formulating evolutionary governing equations has led to the …

[图书][B] Fractional derivative modeling in mechanics and engineering

W Chen, HG Sun, X Li - 2022 - Springer
Classic Newtonian mechanics assumes that space and time are continuous everywhere.
The basic physical quantities (eg speed, acceleration and force) can be described by an …

[图书][B] Fractional calculus with applications in mechanics: vibrations and diffusion processes

TM Atanackovic, S Pilipovic, B Stankovic, D Zorica - 2014 - books.google.com
This book contains mathematical preliminaries in which basic definitions of fractional
derivatives and spaces are presented. The central part of the book contains various …

Variable-order fractional differential operators in anomalous diffusion modeling

HG Sun, W Chen, YQ Chen - Physica A: Statistical Mechanics and its …, 2009 - Elsevier
The purpose of this paper is to offer a unified discussion of variable-order differential
operators in anomalous diffusion modeling. The characteristics of the new models, in …

A comparative study of constant-order and variable-order fractional models in characterizing memory property of systems

HG Sun, W Chen, H Wei, YQ Chen - The european physical journal …, 2011 - Springer
How to characterize the memory property of systems is a challenging issue in the modeling
and analysis of complex systems. This study makes a comparative investigation of integer …

Numerical simulation for two-dimensional variable-order fractional nonlinear cable equation

AH Bhrawy, MA Zaky - Nonlinear Dynamics, 2015 - Springer
The cable equation plays a central role in many areas of electrophysiology and in modeling
neuronal dynamics. This paper reports an accurate spectral collocation method for solving …

Second-order approximations for variable order fractional derivatives: algorithms and applications

X Zhao, Z Sun, GE Karniadakis - Journal of Computational Physics, 2015 - Elsevier
Fractional calculus allows variable-order of fractional operators, which can be exploited in
diverse physical and biological applications where rates of change of the quantity of interest …

Numerical schemes with high spatial accuracy for a variable-order anomalous subdiffusion equation

CM Chen, F Liu, V Anh, I Turner - SIAM Journal on Scientific Computing, 2010 - SIAM
In this paper, we consider a variable-order anomalous subdiffusion equation. A numerical
scheme with first order temporal accuracy and fourth order spatial accuracy for the equation …

[图书][B] Fractional calculus with applications in mechanics: wave propagation, impact and variational principles

TM Atanackovic, S Pilipovic, B Stankovic, D Zorica - 2014 - books.google.com
The books Fractional Calculus with Applications in Mechanics: Vibrations and Diffusion
Processes and Fractional Calculus with Applications in Mechanics: Wave Propagation …