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This article is cited in 4 scientific papers (total in 4 papers)
Mathematical physics
Inverse problems for the diffusion-drift model of charging of an inhomogeneous polar dielectric
R. V. Brizitskiia, N. N. Maksimovab, A. G. Maslovskayab a Institute of Applied Mathematics, Far Eastern Branch, Russian Academy of Sciences, 690041, Vladivostok, Russia
b Amur State University, 675000, Blagoveshchensk, Amur oblast, Russia
Abstract:
The problems of reconstructing the unknown parameters of the model of electron-induced charging of an inhomogeneous polar dielectric from additional information about the volume charge density distribution and the electric field strength are studied. Within the optimization approach, these inverse problems are reduced to control problems and their solvability is proved. For extremum problems, optimality systems are derived and, based on their analysis, local uniqueness of the solution of one of the considered problems is proved. Taking into account the introduced characteristic of the inhomogeneity of the dielectric, auxiliary results on the solvability and properties of solutions of the boundary value problem, obtained earlier for the model of charging of a homogeneous dielectric, are corrected.
Key words:
electron drift-diffusion model, model of charging of an inhomogeneous polar dielectric, global solvability, local uniqueness, maximum principle, inverse problem, control problem, optimality system.
Received: 12.02.2023 Revised: 12.02.2023 Accepted: 29.03.2023
Citation:
R. V. Brizitskii, N. N. Maksimova, A. G. Maslovskaya, “Inverse problems for the diffusion-drift model of charging of an inhomogeneous polar dielectric”, Zh. Vychisl. Mat. Mat. Fiz., 63:9 (2023), 1537–1552; Comput. Math. Math. Phys., 63:9 (2023), 1685–1699
Linking options:
https://www.mathnet.ru/eng/zvmmf11619 https://www.mathnet.ru/eng/zvmmf/v63/i9/p1537
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