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We obtain necessary optimality conditions for variational problems with a Lagrangian depending on a Caputo fractional derivative, a fractional and an indefinite integral. Main results give fractional Euler-Lagrange type equations and…

最优化与控制 · 数学 2011-11-11 Ricardo Almeida , Shakoor Pooseh , Delfim F. M. Torres

This paper considers the initial-boundary value problem for the heat equation with a dynamic type boundary condition. Under some regularity, consistency and orthogonality conditions, the existence, uniqueness and continuous dependence upon…

数学物理 · 物理学 2013-06-21 Nazim B. Kerimov , Mansur I. Ismailov

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

This paper is devoted to describing a linear diffusion problem involving fractional-in-time derivatives and self-adjoint integro-differential space operators posed in bounded domains. One main concern of our paper is to deal with singular…

偏微分方程分析 · 数学 2023-04-11 Hardy Chan , Juan Luis Vázquez , David Gómez-Castro

The aim of this study to investigate the existence of solutions for the following nonlocal integral boundary value problem of Caputo type fractional differential inclusions. To achieve our goals, we take advantage of fixed point theorems…

经典分析与常微分方程 · 数学 2018-07-17 Hüseyin Işık

We consider the terminal value problem (or called final value problem, initial inverse problem, backward in time problem) of determining the initial value, in a general class of time-fractional wave equations with Caputo derivative, from a…

偏微分方程分析 · 数学 2019-10-15 Nguyen Huy Tuan , Tomás Caraballo , Tran Bao Ngoc , Yong Zhou

This paper presents necessary and sufficient optimality conditions for problems of the fractional calculus of variations with a Lagrangian depending on the free end-points. The fractional derivatives are defined in the sense of Caputo.

最优化与控制 · 数学 2010-04-20 Agnieszka B. Malinowska , Delfim F. M. Torres

This manuscript investigates the existence and uniqueness of solutions to the first order fractional anti-periodic boundary value problem involving Caputo-Katugampola (CK) derivative. A variety of tools for analysis this paper through the…

综合数学 · 数学 2019-11-21 Saleh S. Redhwan , Sadikali L. Shaikh , Mohammed S. Abdo

We investigate a first boundary value problem for a second-order partial differential equation involving the Prabhakar fractional derivative in time. Using structural properties of the Prabhakar kernel and generalized Mittag-Leffler…

偏微分方程分析 · 数学 2026-05-20 Erkinjon Karimov , Doniyor Usmonov , Maftuna Mirzaeva

We present a new numerical tool to solve partial differential equations involving Caputo derivatives of fractional variable order. Three Caputo-type fractional operators are considered, and for each one of them an approximation formula is…

经典分析与常微分方程 · 数学 2015-12-08 Dina Tavares , Ricardo Almeida , Delfim F. M. Torres

In this paper, some initial-boundary-value problems for the time-fractional diffusion equation are first considered in open bounded n-dimensional domains. In particular, the maximum principle well-known for the PDEs of elliptic and…

偏微分方程分析 · 数学 2012-05-08 Yuri Luchko

In this paper, we deal with a Cauchy problem for a nonlinear fractional differential equation with the Caputo derivative of order $\alpha \in (0, 1)$. As initial data, we consider a pair consisting of an initial point, which does not…

最优化与控制 · 数学 2022-08-23 Mikhail I. Gomoyunov

In this paper, we consider a boundary value problem (BVP) for a fourth order nonlinear functional integro-differential equation. We establish the existence and uniqueness of solution and construct a numerical method for solving it. We prove…

数值分析 · 数学 2021-11-29 Dang Quang A , Pham Huy Dien , Dang Quang Long

An initial-boundary value problem for a time-fractional subdiffusion equation with an arbitrary order elliptic differential operator is considered. Uniqueness and existence of the classical solution of the posed problem are proved by the…

综合数学 · 数学 2020-06-16 Ravshan Ashurov , Oqila Muhiddinova

We prove conditions for existence of analytical solutions for boundary value problems with the Hilfer fractional derivative, generalizing the commonly used Riemann-Liouville and Caputo operators. The boundary values, referred to in this…

数值分析 · 数学 2026-01-21 Niels Goedegebure , Kateryna Marynets

The paper considers an inverse source problem for a one-dimensional time-fractional heat equation with the generalized impedance boundary condition. The inverse problem is the time dependent source parameter identification together with the…

偏微分方程分析 · 数学 2016-09-06 M. Cicek , M. I. Ismailov

This paper considerers the problem of computing the value of a solution of the heat equation at a given point inside a bounded domain after the initial time. It is assumed that the initial value of the solution inside the domain (possibly…

偏微分方程分析 · 数学 2010-02-02 Masaru Ikehata

This paper investigates a nonlocal boundary value problem for a multi-parametric integral-differential equation involving the Caputo-Prabhakar type operator in a bounded rectangular domain. The nonlocal conditions are given as partial…

偏微分方程分析 · 数学 2026-05-26 Erkinjon Karimov , Doniyor Usmonov , Khurshidjon Turdiev

Almost nothing is known about the layer structure of solutions to singularly perturbed Caputo fractional boundary value problems. We discuss simple convection-diffusion and reaction-diffusion problems.

数值分析 · 数学 2022-09-08 Hans-Görg Roos

We consider the well-posedness of the initial-boundary value problem for a time-fractional partial differential equation with the fractional order lying in (1,2]. For the case of time-dependent coefficients, it is difficult to give an…

偏微分方程分析 · 数学 2025-05-23 Xinchi Huang , Masahiro Yamamoto