About the convergence of a family of initial boundary value problems for a fractional diffusion equation of robin type

Isolda E. Cardoso, Sabrina D. Roscani and Domingo A. Tarzia

Applied Mathematics and Computation, 2022, vol. 433, issue C

Abstract: We consider a family of initial boundary value problems governed by a fractional diffusion equation with Caputo derivative in time, where the parameter is the Newton heat transfer coefficient linked to the Robin condition on the boundary. For each problem we prove existence and uniqueness of solution by a Fourier approach. This will enable us to also prove the convergence of the family of solutions to the solution of the limit problem, which is obtained by replacing the Robin boundary condition with a Dirichlet boundary condition.

Keywords: Fractional diffusion equation; Robin condition; Fourier approach; Asymptotic behavior; SOLA solutions (search for similar items in EconPapers)
Date: 2022
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Persistent link: https://EconPapers.repec.org/RePEc:eee:apmaco:v:433:y:2022:i:c:s0096300322004490

DOI: 10.1016/j.amc.2022.127375

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