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In this article, the existence and uniqueness about the solution for a class of stochastic fractional-order differential equation systems are investigated, where the fractional derivative is described in Caputo sense. The fractional…

数值分析 · 数学 2016-11-24 Guang-an Zou , Bo Wang

We investigate the solutions for a time dependent potential by considering two scenarios for the fractional Schr\"odinger equation. The first scenario analyzes the influence of the time dependent potential in the absence of the kinetic…

综合物理 · 物理学 2023-06-14 EC Gabrick , E Sayari , ASM de Castro , J Trobia , AM Batista , EK Lenzi

We prove an existence result for the fractional Kelvin-Voigt's model involving Caputo's derivative on time-dependent cracked domains. We first show the existence of a solution to a regularized version of this problem. Then, we use a…

偏微分方程分析 · 数学 2025-10-06 Maicol Caponi , Francesco Sapio

In this paper, we consider the extended stochastic Navier-Stokes equations with Caputo derivative driven by fractional Brownian motion. We firstly derive the pathwise spatial and temporal regularity of the generalized Ornstein-Uhlenbeck…

数值分析 · 数学 2017-09-18 Guang-an Zou , Guangying Lv , Jiang-Lun Wu

In this paper, we introduce the nabla fractional derivative and fractional integral on time scales in the Riemann-Liouville sense. We also introduce the nabla fractional derivative in Gr\"unwald-Letnikov sense. Some of the basic properties…

综合数学 · 数学 2021-12-28 Bikash Gogoi , Utpal Kumar Saha , Bipan Hazarika , Delfim F. M. Torres , Hijaz Ahmad

We prove existence and uniqueness of mild solutions to Sobolev type fractional nonlocal dynamic equations in Banach spaces. The Sobolev nonlocal condition is considered in terms of a Riemann-Liouville fractional derivative. A Lagrange…

最优化与控制 · 数学 2015-01-09 Amar Debbouche , Delfim F. M. Torres

This manuscript is dedicated to prove a new inequality that involves an important case of Leibniz rule regarding Riemann-Liouville and Caputo fractional derivatives of order $\alpha\in(0,1)$. In the context of partial differential…

偏微分方程分析 · 数学 2019-01-30 Paulo M. de Carvalho Neto , Renato Fehlberg Junior

In this work, we investigate a linear differential equation involving Caputo-Fabrizio fractional derivative of order $1<\beta\leq 2$. Under some assumptions the considered equation is reduced to an integer order differential equation and…

偏微分方程分析 · 数学 2021-01-05 Nasser Al-Salti , Erkinjon Karimov , Kishin Sadarangani

While it is known that one can consider the Cauchy problem for evolution equations with Caputo derivatives, the situation for the initial value problems for the Riemann-Liouville derivatives is less understood. In this paper we propose new…

偏微分方程分析 · 数学 2022-06-28 Erkinjon Karimov , Michael Ruzhansky , Niyaz Tokmagambetov

The problem of existence of solutions to nabla differential equations and nabla differential inclusions on time scales is considered. Under a special form of the set-valued constraint map, sufficient conditions for the existence of at least…

经典分析与常微分方程 · 数学 2012-07-23 Ewa Girejko , Delfim F. M. Torres

In this paper, we reformulate certain nabla fractional difference equations which had been investigated by other researchers. The previous results seem to be incomplete. By using Contraction Mapping Theorem, we establish conditions under…

经典分析与常微分方程 · 数学 2018-03-09 Raziye Mert , Allan Peterson , Thabet Abdeljawad , Lynn Erbe

In this paper, we prove sharp blow-up and global existence results for a time fractional diffusion-wave equation with a nonlinear memory term in a bounded domain, where the fractional derivative in time is taken in the sense of Caputo type.…

偏微分方程分析 · 数学 2022-11-04 Quanguo Zhang

The diffusion system with time-fractional order derivative is of great importance mathematically due to the nonlocal property of the fractional order derivative, which can be applied to model the physical phenomena with memory effects. We…

偏微分方程分析 · 数学 2021-03-24 Mengmeng Zhang , Jijun Liu

An adaptive finite difference scheme for variable-order fractional-time subdiffusion equations in the Caputo form is studied. The fractional time derivative is discretized by the L1 procedure but using nonhomogeneous timesteps. The size of…

数值分析 · 数学 2024-09-20 Joaquín Quintana-Murillo , Santos Bravo Yuste

We introduce a discrete-time fractional calculus of variations on the time scales $\mathbb{Z}$ and $(h\mathbb{Z})_a$. First and second order necessary optimality conditions are established. Some numerical examples illustrating the use of…

经典分析与常微分方程 · 数学 2012-02-15 Nuno R. O. Bastos

The main purpose of this paper is to study the special fractional-order Chen-Lee system, using the Caputo fractional derivatives. For this fractional model we investigate the existence and uniqueness of solution of initial value problem,…

动力系统 · 数学 2024-08-16 Mihai Ivan

We investigate Optimal Control Problems (OCP) for fractional systems involving fractional-time derivatives on time scales. The fractional-time derivatives and integrals are considered, on time scales, in the Riemann--Liouville sense. By…

最优化与控制 · 数学 2019-09-24 Gaber M. Bahaa , Delfim F. M. Torres

An implicit finite difference method with non-uniform timesteps for solving the fractional diffusion equation in the Caputo form is proposed. The method allows one to build adaptive methods where the size of the timesteps is adjusted to the…

数值分析 · 数学 2024-06-28 Santos B. Yuste , Joaquín Quintana-Murillo

In this work, we study the inverse problem of determining a potential coefficient in an abstract wave equation that includes a lower-order term. The equation incorporates a time-fractional derivative in the Caputo sense, as well as a…

偏微分方程分析 · 数学 2025-07-10 D. K. Durdiev , H. H. Turdiev , A. A. Rahmonov

In this article, we study the continuous and discrete fractional persistence problem which looks for the persistence of properties of a given classical ($\alpha=1$) differential equation in the fractional case (here using fractional…

数值分析 · 数学 2016-10-12 Jacky Cresson , Anna Szafrańska