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 Vestn. Samar. Gos. Tekhn. Univ., Ser. Fiz.-Mat. Nauki [J. Samara State Tech. Univ., Ser. Phys. Math. Sci.]: Year: Volume: Issue: Page: Find

 Vestn. Samar. Gos. Tekhn. Univ., Ser. Fiz.-Mat. Nauki [J. Samara State Tech. Univ., Ser. Phys. Math. Sci.], 2019, Volume 23, Number 2, Pages 229–245 (Mi vsgtu1707)

Differential Equations and Mathematical Physics

Solvability of a nonlocal problem for a hyperbolic equation with degenerate integral conditions

L. S. Pulkina, V. A. Kirichek

Samara National Research University, Samara, 443086, Russian Federation

Abstract: In this paper, we consider a nonlocal problem with integral conditions for hyperbolic equation. Close attention focuses on degenerate integral conditions, namely, on the second kind integral conditions which degenerate into the first kind conditions at some points. Such kind of nonlocal conditions inevitably involves some specific difficulties when we try to show solvability of the problem. These difficulties can be overcome by a method suggested in our paper. The essence of this method is the reduction of the problem with degenerate conditions to the problem with dynamical conditions. This technique enables to define effectively a generalized solution to the problem, to obtain a priori estimates and to prove the existence of a unique generalized solution to the problem.

Keywords: hyperbolic equation, nonlocal problem, 1st and 2d kind integral conditions,degenerate nonlocal conditions, dynamical boundary conditions, generalized solution, Sobolev space

DOI: https://doi.org/10.14498/vsgtu1707

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Bibliographic databases:

UDC: 517.956.3
MSC: 35L15, 35L99, 35D30
Received: May 24, 2019
Revised: June 8, 2019
Accepted: June 10, 2019
First online: June 23, 2019

Citation: L. S. Pulkina, V. A. Kirichek, “Solvability of a nonlocal problem for a hyperbolic equation with degenerate integral conditions”, Vestn. Samar. Gos. Tekhn. Univ., Ser. Fiz.-Mat. Nauki [J. Samara State Tech. Univ., Ser. Phys. Math. Sci.], 23:2 (2019), 229–245

Citation in format AMSBIB
\Bibitem{PulKir19} \by L.~S.~Pulkina, V.~A.~Kirichek \paper Solvability of a nonlocal problem for a hyperbolic equation with degenerate integral conditions \jour Vestn. Samar. Gos. Tekhn. Univ., Ser. Fiz.-Mat. Nauki [J. Samara State Tech. Univ., Ser. Phys. Math. Sci.] \yr 2019 \vol 23 \issue 2 \pages 229--245 \mathnet{http://mi.mathnet.ru/vsgtu1707} \crossref{https://doi.org/10.14498/vsgtu1707}