An Inverse Source Problem for the Generalized Subdiffusion Equation with Nonclassical Boundary Conditions

An initial-boundary-value problem is considered for the one-dimensional diffusion equation with a general convolutional derivative in time and nonclassical boundary conditions. We are concerned with the inverse source problem of recovery of a space-dependent source term from given final time data. G...

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Main Author: Emilia Bazhlekova
Format: Article
Language:English
Published: MDPI AG 2021-06-01
Series:Fractal and Fractional
Subjects:
Online Access:https://www.mdpi.com/2504-3110/5/3/63
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author Emilia Bazhlekova
author_facet Emilia Bazhlekova
author_sort Emilia Bazhlekova
collection DOAJ
description An initial-boundary-value problem is considered for the one-dimensional diffusion equation with a general convolutional derivative in time and nonclassical boundary conditions. We are concerned with the inverse source problem of recovery of a space-dependent source term from given final time data. Generalized eigenfunction expansions are used with respect to a biorthogonal pair of bases. Existence, uniqueness and stability estimates in Sobolev spaces are established.
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spelling doaj.art-f57454681d9b4578b08c0156945750f12023-11-22T02:30:22ZengMDPI AGFractal and Fractional2504-31102021-06-01536310.3390/fractalfract5030063An Inverse Source Problem for the Generalized Subdiffusion Equation with Nonclassical Boundary ConditionsEmilia Bazhlekova0Institute of Mathematics and Informatics, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 8, 1113 Sofia, BulgariaAn initial-boundary-value problem is considered for the one-dimensional diffusion equation with a general convolutional derivative in time and nonclassical boundary conditions. We are concerned with the inverse source problem of recovery of a space-dependent source term from given final time data. Generalized eigenfunction expansions are used with respect to a biorthogonal pair of bases. Existence, uniqueness and stability estimates in Sobolev spaces are established.https://www.mdpi.com/2504-3110/5/3/63subdiffusion equationinverse source problemRiesz basisMittag–Leffler functionStieltjes function
spellingShingle Emilia Bazhlekova
An Inverse Source Problem for the Generalized Subdiffusion Equation with Nonclassical Boundary Conditions
Fractal and Fractional
subdiffusion equation
inverse source problem
Riesz basis
Mittag–Leffler function
Stieltjes function
title An Inverse Source Problem for the Generalized Subdiffusion Equation with Nonclassical Boundary Conditions
title_full An Inverse Source Problem for the Generalized Subdiffusion Equation with Nonclassical Boundary Conditions
title_fullStr An Inverse Source Problem for the Generalized Subdiffusion Equation with Nonclassical Boundary Conditions
title_full_unstemmed An Inverse Source Problem for the Generalized Subdiffusion Equation with Nonclassical Boundary Conditions
title_short An Inverse Source Problem for the Generalized Subdiffusion Equation with Nonclassical Boundary Conditions
title_sort inverse source problem for the generalized subdiffusion equation with nonclassical boundary conditions
topic subdiffusion equation
inverse source problem
Riesz basis
Mittag–Leffler function
Stieltjes function
url https://www.mdpi.com/2504-3110/5/3/63
work_keys_str_mv AT emiliabazhlekova aninversesourceproblemforthegeneralizedsubdiffusionequationwithnonclassicalboundaryconditions
AT emiliabazhlekova inversesourceproblemforthegeneralizedsubdiffusionequationwithnonclassicalboundaryconditions