نتایج جستجو برای: variable order fractional calculus

تعداد نتایج: 1228236  

Journal: :Journal of Mathematical Sciences 2021

The Riccati differential equation with a fractional derivative of variable order is considered. A in the original implies hereditary property medium, i.e., dependence current state dynamic system on its previous states. software called Numerical Solution Fractional-Differential Equation (briefly NSFDRE) created; it allows one to compute numerical solution Cauchy problem for order. algorithm imp...

Journal: :Numerical Mathematics-theory Methods and Applications 2022

In this paper, we propose a fast second-order approximation to the variable-order (VO) Caputo fractional derivative, which is developed based on $L2$-$1_\sigma$ formula and exponential-sum-approximation technique. The evaluation method can achieve accuracy further reduce computational cost acting memory for VO derivative. This algorithm applied construct relevant temporal spatial fourth-order s...

2013
M. De la Sen

This paper establishes some closed formulas for RiemannLiouville impulsive fractional integral calculus and also for RiemannLiouville and Caputo impulsive fractional derivatives. Keywords—RimannLiouville fractional calculus, Caputo fractional derivative, Dirac delta, Distributional derivatives, Highorder distributional derivatives.

2016
Sandeep Singh Sheoran Pradeep Kundu

In the present article, a comprehensive review of relevant literature is presented to highlight the role of fractional calculus in the field of thermoelasticity. This review is devoted to the generalizations of the classical heat conduction equation and formulation of associated theories of fractional thermoelasticity. The recently developed fractional order thermoelastic models are described w...

2013
Fawang Liu

Fractional differential equations have attracted considerable interest because of their ability to model anomalous transport phenomena. Fractional nonlinear reaction-diffusion models have found numerous applications in patten formation in biology, chemistry, physics and Engineering. Obtaining analytical solutions of fractional nonlinear reaction-diffusion models is difficult, generally numerica...

Journal: :computational methods for differential equations 0
mohammad-reza azizi azarbaijan shahid madani university ali khani azarbaijan shahid madani university

the aim of this paper is to present a new numerical method for solving the bagley-torvik equation. this equation has an important role in fractional calculus. the fractional derivatives are described based on the caputo sense. some properties of the sinc functions required for our subsequentdevelopment are given and are utilized to reduce the computation of solution of the bagley-torvik equatio...

2017
Qi Zhang Baoye Song Huadong Zhao Jiansheng Zhang

This paper is concerned with the discretization of the fractional-order differentiator and integrator, which is the foundation of the digital realization of fractional order controller. Firstly, the parameterized Al-Alaoui transform is presented as a general generating function with one variable parameter, which can be adjusted to obtain the commonly used generating functions (e.g. Euler operat...

2008
Ivan Nourdin

In this paper, we prove a central limit theorem for a sequence of multiple Skorohod integrals using the techniques of Malliavin calculus. The convergence is stable, and the limit is a conditionally Gaussian random variable. Some applications to sequences of multiple stochastic integrals, and renormalized weighted quadratic variation of the fractional Brownian motion are discussed.

2015
Duan- yuan Bai yang Wang Ji Zou

The fractional order calculus theory and its modeling methods have been applied widely in control field. And design of fractional order control systems become hot point of recent years. This paper establishes fractional order systems which parameters are obtained by Bode’s ideal transfer function method to get the desired frequency response. Apply this method a new control structure of fraction...

Journal: :Journal of energy storage 2022

Due to the increasing importance of lithium-ion batteries in electric vehicle and renewable energy applications, battery aging is a subject intense research. Although many laboratory experiments are performed under well-controlled static conditions, stored operated varying conditions temperature state charge their real-life performance, so that suitable model for predicting effects calendar wit...

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