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

Zh. Vychisl. Mat. Mat. Fiz., 2023 Volume 63, Number 7, Pages 1156–1176 (Mi zvmmf11587)

This article is cited in 1 paper

Partial Differential Equations

On a method for solving a mixed boundary value problem for a parabolic equation using modified sinc-approximation operators

A. Yu. Trynin

Saratov State University, 410012, Saratov, Russia

Abstract: A new method is proposed for obtaining a generalized solution of a mixed boundary value problem for a parabolic equation with boundary conditions of the third kind and a continuous initial condition. Generalized functions are understood in the sense of the sequential approach. As an intermediate approximation, a modified sinc-approximation operator is used. The solution is obtained in the form of a series uniformly converging inside the solution domain.

Key words: mixed boundary value problem, generalized solution, sinc approximations, uniform convergence.

UDC: 517.518.8

Received: 08.12.2022
Revised: 08.12.2022
Accepted: 02.02.2023

DOI: 10.31857/S0044466923050186


 English version:
Computational Mathematics and Mathematical Physics, 2023, 63:7, 1264–1284

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© Steklov Math. Inst. of RAS, 2026