Аскеров, І. М.І. М.Аскеров2026-06-302026-06-302022-04-26Аскеров, І. М. (2022). On a determination of the boundary function in the initial-boundary value problem for the second order hyperbolic equation. Bulletin of Taras Shevchenko National University of Kyiv. Physics and Mathematics(1), 56–60. https://doi.org/10.17721/1812-5409.2022/1.710.17721/1812-5409.2022/1.7https://ir.library.knu.ua/handle/15071834/25929In the paper the problem of determination of the boundary function is studied in the initial boundary value problem described by the second order hyperbolic equation. With the help of the additional condition, the functional is constructed, and the problem under consideration is reduced to the optimal control problem. The differential of the function is calculated, a necessary and sufficient condition for optimality is proved. Pages of the article in the issue: 56 - 60 Language of the article: Englishenhyperbolic equationinverse problemoptimal controloptimality conditionгіперболічне рівнянняобернена задачаоптимальне керуванняумова оптимальностіСтаття