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JOURNALS // Ufimskii Matematicheskii Zhurnal // Archive

Ufimsk. Mat. Zh., 2024 Volume 16, Issue 4, Pages 40–52 (Mi ufa714)

Effective factorization of third order Hölder matrix function in some classes

S. N. Kiyasov

Kazan (Volga Region) Federal University, Kremlevskaya str. 35, 420008, Kazan, Russia

Abstract: We consider a homogeneous linear conjugation problem for a three–dimensional piecewise analytic vector on a simple smooth closed contour partitioning the plane of a complex variable into two regions. To each solution of the problem, we assign a triple of functions which are quotients of limiting values on the contour from the corresponding regions of the components of this solution. We provide identities relating the entries of $H$–continuous matrix function of the linear conjugation problem ensuring the existence of two of its solutions for which the corresponding components of the triples are proportional and the problem itself admits a solution in closed form.

Keywords: matrix function, linear conjugation problem, factorization.

UDC: 517.544

MSC: 30-XX

Received: 03.04.2024


 English version:
Ufa Mathematical Journal, 2024, 16:4, 40–52


© Steklov Math. Inst. of RAS, 2026