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

Zh. Vychisl. Mat. Mat. Fiz., 2026 Volume 66, Number 1, Pages 28–39 (Mi zvmmf12122)

Partial Differential Equations

Restoration of the oscillation function for the source support in the wave equation

A. B. Bakushinskiia, A. S. Leonovb

a Federal Research Center "Computer Science and Control" of Russian Academy of Sciences, Moscow
b National Engineering Physics Institute "MEPhI", Moscow

Abstract: We consider the inverse problem of determining the oscillation function in the support of a “thin” finite oscillation source in the wave equation based on wave field measurements in a distant plane. By applying the Fourier transform, the problem is reduced to a parametric set of one-dimensional Volterra-like integral equations of the first kind. Conditions for the uniqueness of a solution are established. A numerical algorithm for solving this inverse problem is proposed and investigated. The capabilities and features of the algorithm are illustrated by numerical experiments.

Key words: wave equation, oscillation functions of source support, inverse problem, regularization algorithm.

UDC: 519.633

Received: 09.09.2025
Revised: 09.09.2025
Accepted: 10.10.2025

DOI: 10.7868/S3034533226010045


 English version:
Computational Mathematics and Mathematical Physics, 2026, 66:1, 24–36

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© Steklov Math. Inst. of RAS, 2026