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This paper provides well-posedness results and stochastic representations for the solutions to equations involving both the right- and the left-sided generalized operators of Caputo type. As a special case, these results show the interplay…

概率论 · 数学 2017-01-19 Ma. Elena Hernández-Hernández , Vassili N. Kolokoltsov

In this paper, we consider the backward problem for fractional in time evolution equations $\partial_t^\alpha u(t)= A u(t)$ with the Caputo derivative of order $0<\alpha \le 1$, where $A$ is a self-adjoint and bounded above operator on a…

偏微分方程分析 · 数学 2022-11-30 S. E. Chorfi , L. Maniar , M. Yamamoto

In this work we look at the original fractional calculus of variations problem in a somewhat different way. As a simple consequence, we show that a fractional generalization of a classical problem has a solution without any restrictions on…

最优化与控制 · 数学 2019-08-27 Rui A. C. Ferreira

In the present paper, we investigate the fractional analog of the Sturm-Liouville problem on a metric graph using a combination of left Riemann-Liouville and right Caputo fractional derivatives. This combination creates a symmetric and…

偏微分方程分析 · 数学 2025-04-29 A. A. Turemuratova , R. Ch. Kulaev , Z. A. Sobirov

An investigation of classical fields with fractional derivatives is presented using the fractional Hamiltonian formulation. The fractional Hamilton's equations are obtained for two classical field examples. The formulation presented and the…

综合物理 · 物理学 2011-07-11 A. A. Diab , R. S. Hijjawi , J. H. Asad , J. M. Khalifeh

This work studies exact solvability of a class of fractional reaction-diffusion equation with the Riemann-Liouville fractional derivatives on the half-line in terms of the similarity solutions. We derived the conditions for the equation to…

统计力学 · 物理学 2024-03-12 C. -L. Ho

We propose a new spectral method, based on two classes of hat functions, for solving systems of fractional differential equations. The fractional derivative is considered in the Caputo sense. Properties of the basis functions, Caputo…

数值分析 · 数学 2021-04-19 Somayeh Nemati , Delfim F. M. Torres

We consider an evolution equation involving the fractional powers, of order $s \in (0,1)$, of a symmetric and uniformly elliptic second order operator and Caputo fractional time derivative of order $\gamma \in (1,2]$. Since it has been…

偏微分方程分析 · 数学 2019-01-04 Enrique Otarola , Abner J. Salgado

Time-dependent fractional-derivative problems $D_t^\delta u + Au = f$ are considered, where $D_t^\delta$ is a Caputo fractional derivative of order $\delta\in (0,1)\cup (1,2)$ and~$A$ is a classical elliptic operator, and appropriate…

偏微分方程分析 · 数学 2016-12-26 Martin Stynes

In this article, we utilize \emph{q}--fractional Caputo initial value problems of order $0<\alpha\leq 1$ to derive a \emph{q}--analogue for Gronwall--type inequality. Some particular cases are derived where \emph{q}--Mittag--Leffler…

动力系统 · 数学 2016-09-20 Thabet Abdeljawad , Jehad Alzabut

Here we define a Caputo like discrete fractional difference and we compare it to the earlier defined Riemann-Liouville fractional discrete analog. Then we produce discrete fractional Taylor formulae for the first time, and we estimate their…

经典分析与常微分方程 · 数学 2009-11-18 George A. Anastassiou

The following material was created with the idea of being used for an introductory fractional calculus course. A recapitulation of the history of fractional calculus is presented, as well as the different attempts at fractional derivatives…

综合数学 · 数学 2021-12-24 A. Torres-Hernandez , F. Brambila-Paz

Historically the fractional calculus concept works an extended idea based on the question asked by Guillaume de L'H\^opital to Gottfried Wilhelm Leibniz in 1695 about the notation ${d^nf}/{dx^n}$ for the derivative operator "What if…

数学物理 · 物理学 2025-07-08 J. J. A. de Oliveira , C. F. L. Godinho

In this paper we consider a Caputo type fractional derivative with respect to another function. Some properties, like the semigroup law, a relationship between the fractional derivative and the fractional integral, Taylor's Theorem,…

经典分析与常微分方程 · 数学 2016-10-12 Ricardo Almeida

In this work, we introduce a new fractional derivative that modifies the conventional Riemann-Liouville operator to obtain a set of fractional Einstein field equations within a 2+1 dimensional spacetime by assuming a static and circularly…

广义相对论与量子宇宙学 · 物理学 2025-05-20 E. Contreras , A. Di Teodoro , M. Mena

We consider three classes of linear differential equations on distribution functions, with a fractional order $\alpha\in [0,1].$ The integer case $\alpha =1$ corresponds to the three classical extreme families. In general, we show that…

概率论 · 数学 2019-08-05 Lotfi Boudabsa , Thomas Simon , Pierre Vallois

In this work, a new relationship is established between the solutions of higher fractional differential equations and a Wright-type transformation. Solutions could be interpreted as expected values of functions in a random time process. As…

数值分析 · 数学 2024-04-02 M. Nacianceno , T. Oraby , H. Rodrigo , Y. Sepulveda , J. Sifuentes , E. Suazo , T. Stuck , J. Williams

We study some inverse problems for time-fractional Schr\"odinger equations involving the Caputo derivative of fractional order $\alpha \in (0,1)$. We prove refined uniqueness results from sets of positive Lebesgue measure for various…

偏微分方程分析 · 数学 2025-11-13 S. E. Chorfi , F. Et-tahri , L. Maniar , M. Yamamoto

We Investigate two types of dual identities for Caputo fractional differences. The first type relates nabla and delta type fractional sums and differences. The second type represented by the Q-operator relates left and right fractional sums…

动力系统 · 数学 2013-01-11 Thabet Abdeljawad

We study fractional differential equations of Riemann-Liouville and Caputo type in Hilbert spaces. Using exponentially weighted spaces of functions defined on $\mathbb{R}$, we define fractional operators by means of a functional calculus…