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In the present work, we investigate a uniqueness of solution of the inverse source problem with non-local conditions for mixed parabolic-hyperbolic type equation with Caputo fractional derivative. Solution of the problem we represent as…

偏微分方程分析 · 数学 2016-01-22 M. S. Salakhitdinov , E. T. Karimov

The paper addresses the formulation and analysis of direct and inverse problems for a Langevin-type fractional differential equation under a non-local condition imposed on the time variable. An additional condition for solving the inverse…

偏微分方程分析 · 数学 2025-07-11 Fayziev Yusuf , Jumaeva Shakhnoza

In this paper, we investigate the inverse problem of determining the right-hand side of a subdiffusion equation with a Caputo time derivative, where the right-hand side depends on both time and certain spatial variables. Similar inverse…

偏微分方程分析 · 数学 2025-05-08 R. R. Ashurov , O. T. Mukhiddinova

The inverse problem of determining the right-hand side of the subdiffusion equation with the fractional Caputo derivative is considered. The right-hand side of the equation has the form $f(x)g(t)$ and the unknown is function $f(x)$. The…

偏微分方程分析 · 数学 2023-02-28 Ravshan Ashurov , Shakarova Marjona

The article investigates an inverse problem of determining the right-hand side of a subdiffusion equation with Caputo fractional derivative whose elliptic part has the most general form and is defined on an N-dimensional torus T N . The…

偏微分方程分析 · 数学 2022-04-04 O. T. Muhiddinova

In this paper, we are interested in the study of a problem with fractional derivatives having boundary conditions of integral types. The problem represents a Caputo type advection-diffusion equation where the fractional order derivative…

数值分析 · 数学 2021-02-23 Saadoune Brahimi , Ahcene Merad , Adem Kilicman

In the Hilbert space $H$, the inverse problem of determining the right-hand side of the abstract subdiffusion equation with the fractional Caputo derivative is considered. For the forward problem, a non-local in time condition $u(0)=u(T)$…

偏微分方程分析 · 数学 2023-08-11 Ravshan Ashurov , Marjona Shakarova

In this work, for an equation of high even order with a fractional derivative in the sense of Caputo, a problem is studied in a rectangular domain with conjugation conditions. A criterion for the uniqueness of a solution is given. The…

偏微分方程分析 · 数学 2021-06-09 B. Yu. Irgashev

This paper is devoted to the study of the inverse problem of determining the right-hand side of the subdiffusion equation with the Caputo derivative with respect to time. In our case, the inverse problem consists in restoring the…

偏微分方程分析 · 数学 2025-05-20 R. R. Ashurov , O. T. Mukhiddinova

In this paper, for a degenerate higher order equation with a fractional derivative in the sense of Caputo, a nonlocal problem with conjugation conditions in a rectangular domain is studied. The solution is constructed in the form of a…

偏微分方程分析 · 数学 2021-06-29 B. Yu. Irgashev

In this paper, we consider forward and inverse problems for subdiffusion equations with time-dependent coefficients. The fractional derivative is taken in the sense of Riemann-Liouville. Using the classical Fourier method, the theorem of…

偏微分方程分析 · 数学 2023-05-02 Ravshan Ashurov , Yusuf Fayziev , Muattar Khudoykulova

In the present paper we consider an inverse source problem for time-fractional mixed parabolic-hyperbolic equation with the Caputo derivative. In case, when hyperbolic part of the considered mixed type equation is wave equation, the…

偏微分方程分析 · 数学 2015-12-08 Pengbin Feng , E. T. Karimov

In this chapter, we mainly review theoretical results on inverse source problems for diffusion equations with the Caputo time-fractional derivatives of order $\alpha\in(0,1)$. Our survey covers the following types of inverse problems: 1.…

偏微分方程分析 · 数学 2019-04-15 Yikan Liu , Zhiyuan Li , Masahiro Yamamoto

The study examines the inverse problem of finding the appropriate right-hand side for the subdiffusion equation with the Caputo fractional derivative in a Hilbert space represented by $H$. The right-hand side of the equation has the form…

偏微分方程分析 · 数学 2023-09-12 Marjona Shakarova

In this work we investigate a boundary problem with non-local conditions for mixed parabolic-hyperbolic type equation with three lines of type-changing with Caputo fractional derivative in the parabolic part. We equivalently reduce…

偏微分方程分析 · 数学 2015-07-07 E. T. Karimov , A. S. Berdyshev , N. A. Rakhmatullaeva

This paper investigates an inverse source problem for a multi-term time-fractional diffusion equation with Caputo derivatives. The source term is separable as \(f(x)g(t)\), with the unknown spatial component \(f(x)\) reconstructed from an…

偏微分方程分析 · 数学 2026-03-03 Ravshan Ashurov , Damir Shamuratov

Inverse problem for multi-term fractional parabolic equation in two dimensional space, involving m + 1 Caputo fractional derivatives in time, is investigated. Presence of nonlocal boundary conditions leads to a non-self-adjoint spectral…

偏微分方程分析 · 数学 2022-02-08 Muhammad Ali , Sara Aziz

In this paper, we investigate the existence and uniqueness of solutions for a fractional boundary value problem supplemented with nonlocal Riemann-Liouville fractional integral and Caputo fractional derivative boundary conditions. Our…

经典分析与常微分方程 · 数学 2018-05-17 Faouzi Haddouchi

In this work, forward and inverse problems for a time-fractional pseudo-parabolic equation $D_t^{\rho} [u(t) + \mu Au(t)] + \sigma(t) Au(t) = r(t)g$ are investigated in a Hilbert space, where $A$ is an unbounded, positive, self-adjoint…

偏微分方程分析 · 数学 2026-05-14 Ravshan Ashurov , Elbek Husanov

In the present work, we discuss a unique solvability of an inverse-source problem with integral transmitting condition for time-fractional mixed type equation in a rectangular domain, where the unknown source term depends on space variable…

偏微分方程分析 · 数学 2016-04-01 Erkinjon Karimov , Nasser Al-Salti , Sebti Kerbal
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