An inverse problem of finding a time-dependent coefficient in a fractional diffusion equation

Durdiev D, Durdiev D (2023)

Publication Type: Journal article

Publication year: 2023

Journal

Turkish Journal of Mathematics Scientific and Technical Research Council of Turkey

Book Volume: 47

Pages Range: 1437-1452

Journal Issue: 5

DOI: 10.55730/1300-0098.3439

Abstract

This article is concerned with the study of unique solvability of an inverse coefficient problem of determining the coefficient at the lower term of a fractional diffusion equation. The direct problem is the initial-boundary problem for this equation with usual initial and homogeneous Dirichlet conditions. To determine the unknown coefficient, an overdetermination condition is given as the Neumann condition at the left end of the spatial interval. The theorems of existence and uniqueness of inverse problem solution are obtained. Furthermore, we propose a numerical algorithm based on a finite-difference scheme to accurately compute the inverse problem of simultaneously determining a time-dependent coefficient in a fractional diffusion equation, together with its solution. A test example using the developed numerical algorithm is presented herein.

Authors with CRIS profile

Dilshod Durdiev Lehrstuhl für Werkstoffsimulation

Involved external institutions

Academy of Sciences Republic of Uzbekistan UZ Uzbekistan (UZ)

How to cite

APA:

Durdiev, D., & Durdiev, D. (2023). An inverse problem of finding a time-dependent coefficient in a fractional diffusion equation. Turkish Journal of Mathematics, 47(5), 1437-1452. https://dx.doi.org/10.55730/1300-0098.3439

MLA:

Durdiev, Durdimurod, and Dilshod Durdiev. "An inverse problem of finding a time-dependent coefficient in a fractional diffusion equation." Turkish Journal of Mathematics 47.5 (2023): 1437-1452.

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