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JOURNALS // Zhurnal Vychislitel'noi Matematiki i Matematicheskoi Fiziki // Archive

Zh. Vychisl. Mat. Mat. Fiz., 2025, Volume 65, Number 6, Pages 842–849 (Mi zvmmf11988)

General numerical methods

On the difference solution of one nonlocal boundary value problem for the fractional order diffusion equation

A. K. Bazzaevab

a North Ossetian State University after Kosta Levanovich Khetagurov, Vladikavkaz, Russia
b Vladikavkaz Institute of Management

Abstract: This work investigates a problem for a fractional diffusion equation with nonclassical boundary conditions. A family of weighted difference schemes is studied for the considered problem. An algorithm for finding a numerical solution is provided. Using the maximum principle for the difference problem, an a priori estimate is derived, which implies the stability of the difference schemes and the convergence of the numerical solution to the exact solution in the C-norm.

Key words: Caputo fractional derivative, fractional diffusion equation, boundary value problem, maximum principle, a priori estimate, approximation, stability of difference schemes, convergence of difference schemes, nonlocal boundary value problem.

UDC: 519.63

Received: 03.05.2024
Accepted: 27.03.2025

DOI: 10.31857/S0044466925060018


 English version:
Computational Mathematics and Mathematical Physics, 2025, 65:6, 1173–1180

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© Steklov Math. Inst. of RAS, 2026