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

Izv. Vyssh. Uchebn. Zaved. Mat., 2025 Number 4, Pages 32–37 (Mi ivm10079)

Efficient factorization in some classes of second-order Holder matrix-functions

S. N. Kiyasov

Kazan Federal University, 18 Kremlyovskaya str., Kazan, 420008 Russia

Abstract: A homogeneous linear conjugate problem on a closed contour for a two-dimensional piecewise analytic vector is considered. Each solution of the problem is given a pair of functions, which are relations of limit values on the contour of the corresponding components of this solution. The relations connecting the elements of the $H$-continuous matrix-functions of the problem, providing the existence of its two solutions, for which the corresponding components of the pair differ by rational multipliers, and the problem itself admits a solution in closed form, are specified.

Keywords: matrix-function, linear conjugation problem, factorization.

UDC: 517.544

Received: 26.03.2024
Revised: 26.03.2024
Accepted: 26.06.2024

DOI: 10.26907/0021-3446-2025-4-32-37


 English version:
Russian Mathematics (Izvestiya VUZ. Matematika), 2025, 69:4, 27–32


© Steklov Math. Inst. of RAS, 2026