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

Izv. Vyssh. Uchebn. Zaved. Mat., 2022 Number 9, Pages 14–29 (Mi ivm9808)

This article is cited in 4 papers

A boundary value problem with a conormal derivative for the mixed type equation of second kind with a conjugation condition of the Frankl type

B. I. Islomova, A. A. Abdullayevb

a National University of Uzbekistan named after M.Ulugbek, 4 University str., Tashkent, 700174 Republic of Uzbekistan
b Tashkent Institute of Irrigation and Agricultural Mechanization Engineers, 39 Kari Niyazi str., Tashkent, 100000 Republic of Uzbekistan

Abstract: In this paper, using the properties of generalized solutions, both in the hyperbolic part and in the elliptic part of the mixed domain, we study a boundary value problem with a conormal derivative for a mixed type equation of the second kind with Frankl type conditions is investigated. The uniqueness of the solution to the problem under study is proved using the extremum principle, and the existence is proved by the method of integral equations. The theory of singular integral equations, Wiener-Hopf and Fredholm integral equations of the second kind are used to prove the existence of a solution to the problem.

Keywords: equation of the second kind, extremum principle, Wiener-Hopf equation, convolution-type equation, Green's function, uniqueness and existence of a solution.

UDC: 517.956

Received: 14.11.2021
Revised: 10.02.2022
Accepted: 08.04.2022

DOI: 10.26907/0021-3446-2022-9-14-29


 English version:
Russian Mathematics (Izvestiya VUZ. Matematika), 2022, 66:9, 11–25


© Steklov Math. Inst. of RAS, 2024