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JOURNALS // Zhurnal Vychislitel'noi Matematiki i Matematicheskoi Fiziki // Archive

Zh. Vychisl. Mat. Mat. Fiz., 2006 Volume 46, Number 5, Pages 813–833 (Mi zvmmf468)

This article is cited in 3 papers

A method for finding coefficients of a quasilinear hyperbolic equation

A. Yu. Shcheglov

Faculty of Computational Mathematics and Cybernetics, Moscow State University, Leninskie gory, Moscow, 119992, Russia

Abstract: The inverse problem of finding the coefficients $q(s)$ and $p(s)$ in the equation $u_{tt}=a^2u_{xx}+q(u)u_t-p(u)u_x$ is investigated. As overdetermination required in the inverse setting, two additional conditions are set: a boundary condition and a condition with a fixed value of the timelike variable. An iteration method for solving the inverse problem is proposed based on an equivalent system of integral equations of the second kind. A uniqueness theorem and an existence theorem in a small domain are proved for the inverse problem to substantiate the convergence of the algorithm.

Key words: quasilinear hyperbolic equation, inverse problem for two coefficients, iteration method.

UDC: 519.633.9

Received: 08.10.2004


 English version:
Computational Mathematics and Mathematical Physics, 2006, 46:5, 776–795

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