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JOURNALS // Izvestiya Vysshikh Uchebnykh Zavedenii. Matematika // Archive

Izv. Vyssh. Uchebn. Zaved. Mat., 2020 Number 12, Pages 22–31 (Mi ivm9632)

This article is cited in 7 papers

On the relationship between the factorization problem in the Wiener algebra and the truncated Wiener–Hopf equation

A. F. Voronin

Sobolev Institute of Mathematics, Siberian Branch, Russian Academy of Sciences, 4 Academician Koptyug Ave., Novosibirsk, 630090 Russia

Abstract: In this paper, the homogeneous vector Riemann boundary value problem (factorization problem) is investigated from a new position — the Riemann problem is reduced to the truncated Wiener–Hopf equation (convolution equation on finite interval). In this paper, we find a connection between the problem of factorization of the matrix-function in the Wiener algebra of order two and the truncated Wiener–Hopf equation. An explicit formula for this relationship is obtained. Note that the matrix-function studied in this paper has not the most General form in Wiener algebra, which is not important in this case. The truncated Wiener–Hopf equation is one of the most studied Fredholm integral equations of the second kind. Therefore, we can expect that the idea of such information will lead to new results in the study of the factorization problem.

Keywords: truncated Wiener–Hopf equation, Wiener algebra, factorization problem, Riemann boundary value problem, matrix-function, partial indices.

UDC: 517.544

Received: 27.01.2020
Revised: 09.03.2020
Accepted: 25.03.2020

DOI: 10.26907/0021-3446-2020-12-22-31


 English version:
Russian Mathematics (Izvestiya VUZ. Matematika), 2020, 64:12, 20–28

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