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JOURNALS // Chelyabinskiy Fiziko-Matematicheskiy Zhurnal // Archive

Chelyab. Fiz.-Mat. Zh., 2023 Volume 8, Issue 2, Pages 238–248 (Mi chfmj326)

This article is cited in 1 paper

Mathematics

Coefficient inverse problem for Whitham type two-dimensional differential equation with impulse effects

T. K. Yuldasheva, T. G. Ergashevb, A. K. Fayziyeva

a Tashkent State University of Economics, Tashkent, Uzbekistan
b National Research University "Tashkent Institute of Irrigation and Agricultural Mechanization Engineers", Tashkent, Uzbekistan

Abstract: In the article the questions of unique solvability and determination of the redefinition coefficient function in the initial inverse problem for two-dimensional Whitham-type partial differential equation with impulse effects are studied. The modified method of characteristics allows partial differential equations of the first order to be represented as ordinary differential equations that describe the change of an unknown function along the line of characteristics. The unique solvability of the two-dimensional inverse problem is proved by the method of successive approximations and contraction mappings. The definition of the unknown coefficient is reduced to solving the Volterra integral equation of the first kind.

Keywords: inverse problem, two-dimensional Whitham type equation, determination of the coefficient function, method of successive approximations, unique solvability.

UDC: 517.955.2

Received: 11.01.2023
Revised: 05.05.2023

Language: English

DOI: 10.47475/2500-0101-2023-18207



© Steklov Math. Inst. of RAS, 2024