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JOURNALS // Vestnik Sankt-Peterburgskogo Universiteta. Seriya 10. Prikladnaya Matematika. Informatika. Protsessy Upravleniya // Archive

Vestnik S.-Petersburg Univ. Ser. 10. Prikl. Mat. Inform. Prots. Upr., 2019 Volume 15, Issue 3, Pages 323–336 (Mi vspui411)

This article is cited in 20 papers

Applied mathematics

About one approach to solving the inverse problem for parabolic equation

A. P. Zhabkoa, K. B. Nurtazinab, V. V. Provotorovc

a St. Petersburg State University, 7-9, Universitetskaya nab., St. Petersburg, 199034, Russian Federation
b L. N. Gumilyov Eurasian National University, 2, ul. Satpaeva, Nur-Sultan, 010008, Republic Kazakhstan
c Voronezh State University, 1, Universitetskaya pl., Voronezh, 394006, Russian Federation

Abstract: Consider the problem of determining the coefficients in the differential equation of parabolic types and boundary conditions on the known sections of the solutions of the initial-boundary value problem. Used spectral approach based on spectral properties of the elliptic operator of the initial-boundary value problem and the methods of solving the inverse spectral problem of restoring the Sturm–Liouville operator on two sequences of the eigenvalues, that corresponding to two sets of boundary conditions. In the work presented sufficient conditions of determination of two sequences of the eigenvalues by two sets of boundary conditions and terms of the uniqueness of the solution of the inverse problem The paper considers the case where the initial-boundary value problem contains the specifics — the interval of change contains variable include a finite number of the points, where the differential equation is meaningless and replaced conditions agreement.

Keywords: parabolic system, inverse problem, the eigenvalues of boundary value problems, the poles of the analytical continuation of the Green's function.

UDC: 517.956.47

MSC: 74G55

Received: May 15, 2019
Accepted: June 6, 2019

Language: English

DOI: 10.21638/11701/spbu10.2019.303



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