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This paper deals with fractional differential equations, with dependence on a Caputo fractional derivative of real order. The goal is to show, based on concrete examples and experimental data from several experiments, that fractional…

综合数学 · 数学 2016-11-03 Ricardo Almeida , Nuno R. O. Bastos , M. Teresa T. Monteiro

This paper studies global solvability of the Cauchy problem for a generalized time-fractional Kuramoto-Sivashinsky equation in the Shwartz space, which is a complete topological space generated by a family of semi-norms. The main approach…

偏微分方程分析 · 数学 2026-04-10 R. R. Ashurov , Z. A. Sobirov , R. B. Norkulova

We consider fractional differential equations of order $\alpha \in (0,1)$ for functions of one independent variable $t\in (0,\infty)$ with the Riemann-Liouville and Caputo-Dzhrbashyan fractional derivatives. A precise estimate for the order…

经典分析与常微分方程 · 数学 2008-11-22 Anatoly N. Kochubei

For the linear partial differential equation $P(\partial_x,\partial_t)u=f(x,t)$, where $x\in\mathbb{R}^n,\;t\in\mathbb{R}^1$, with $P(\partial_x,\partial_t)$ is $\prod^m_{i=1}(\frac{\partial}{\partial{t}}-a_iP(\partial_x))$ or…

偏微分方程分析 · 数学 2011-02-04 Guangqing Bi , Yuekai Bi

In this paper, we investigate existence and uniqueness of solutions for Darboux type problem for fuzzy fractional order differential equation. We used Caputo-Katogampola fuzzy fractional derivative for proving our results. Schauder's fixed…

综合数学 · 数学 2023-10-12 Nagwa A. Saeed , Deepak B. Pachpatte

We consider an inverse source problem in the two-time-scale mobile-immobile fractional diffusion model from partial interior observation. Theoretically, we combine the fractional Duhamel's principle with the weak vanishing property to…

数值分析 · 数学 2026-04-02 Zhiwei Yang , Yikan Liu

A finite difference numerical method is investigated for fractional order diffusion problems in one space dimension. For this, a mathematical model is developed to incorporate homogeneous Dirichlet and Neumann type boundary conditions. The…

数值分析 · 数学 2014-11-07 Béla J. Szekeres , Ferenc Izsák

We study Cauchy problems of fractional differential equations in both space and time variables by expressing the solution in terms of ``stochastic composition" of the solutions to two simpler problems. These Cauchy sub-problems respectively…

概率论 · 数学 2024-11-13 Fabrizio Cinque , Enzo Orsingher

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 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

In the present work, by taking advantage of a so-called practical limitation of fractional derivatives, namely, the absence of a simple chain and Leibniz's rules, we proposed a generalized fractional calculus of variation where the…

最优化与控制 · 数学 2019-09-02 M. J. Lazo , G. S. F. Frederico , P. M. Carvalho-Neto

We consider a singular fractional differential equation involving generalized Katugampola derivative and obtain the existence and uniqueness of its solution. A scheme for uniformly approximating solution is constructed by using Picard…

经典分析与常微分方程 · 数学 2018-08-10 Sandeep Pandurang Bhairat

The partial differential equation of Gaussian diffusion is generalized by using the time-fractional derivative of distributed order between 0 and 1, in both the Riemann-Liouville (R-L) and the Caputo (C) sense. For a general distribution of…

统计力学 · 物理学 2008-05-27 Francesco Mainardi , Antonio Mura , Gianni Pagnini , Rudolf Gorenflo

This paper is concerned with the inverse problem on determining an orbit of the moving source in a fractional diffusion(-wave) equations in a connected bounded domain of $\mathbb R^d$ or in the whole space $\mathbb R^d$. Based on a newly…

偏微分方程分析 · 数学 2020-02-06 Guanghui Hu , Yikan Liu , Masahiro Yamamoto

In the paper, a linear differential equation with variable coefficients and a Caputo fractional derivative is considered. For this equation, a Cauchy problem is studied, when an initial condition is given at an intermediate point that does…

最优化与控制 · 数学 2020-09-01 Mikhail Gomoyunov

We prove a Noether type symmetry theorem to fractional problems of the calculus of variations with classical and Riemann-Liouville derivatives. As result, we obtain constants of motion (in the classical sense) that are valid along the mixed…

最优化与控制 · 数学 2013-02-12 Gastao S. F. Frederico , Delfim F. M. Torres

A simple yet effective numerical method using orthogonal hybrid functions consisting of piecewise constant orthogonal sample-and-hold functions and piecewise linear orthogonal triangular functions is proposed to solve numerically fractional…

数值分析 · 数学 2018-02-01 Seshu Kumar Damarla , Madhusree Kundu

In this paper we propose an algorithm for the numerical solution of arbitrary differential equations of fractional order. The algorithm is obtained by using the following decomposition of the differential equation into a system of…

数值分析 · 数学 2025-10-20 Leszczynski Jacek , Ciesielski Mariusz

A fractional Hamiltonian formalism is introduced for the recent combined fractional calculus of variations. The Hamilton-Jacobi partial differential equation is generalized to be applicable for systems containing combined Caputo fractional…

数学物理 · 物理学 2012-06-19 Agnieszka B. Malinowska , Delfim F. M. Torres

Fractional derivative can be defined as a fractional power of derivative. The commutator (i/h)[H, ], which is used in the Heisenberg equation, is a derivation on a set of observables. A derivation is a map that satisfies the Leibnitz rule.…

量子物理 · 物理学 2009-11-13 Vasily E. Tarasov