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On the theory of the known inverse problems for the heat transfer equation
K. B. Sabitovab, A. R. Zaynullova a Sterlitamak Branch, Bashkir State
University, Sterlitamak, 453103
Russia
b Sterlitamak Branch, Institute for Strategic Studies of the Republic of Bashkortostan, Sterlitamak, 453103 Russia
Abstract:
The inverse problems for finding the initial condition and the
right-hand side were studied for the heat transfer equation. A
solution of the initial boundary value problem for the inhomogeneous
heat transfer equation with sufficient conditions for the
solvability of the problem was constructed in the first place. On
the basis of the solution of the initial boundary value problem, a
criterion for the uniqueness of the solution of the inverse problem
to determine the initial condition was established. The study of the
inverse problem of finding the right-hand side of the component,
which depends on time, is equivalent to reducing to the unique
solvability of the Volterra integral equation of the second kind. In
view of the unique solvability of the given integral equation in the
class of continuous functions, we obtained theorems for the unique
solvability of the inverse problem. The solution of the inverse
problem to determine the factor of the right-hand side, depending on
the spatial coordinate, was constructed as a sum of the series in
the system of eigenfunctions of the corresponding one-dimensional
spectral problem; the criterion of uniqueness was established, and
the existence and stability theorems of the solution of the problem
were proved.
Keywords:
heat transfer equation, inverse problems, spectral method, integral equation, uniqueness, existence, stability.
Received: 27.10.2017
Citation:
K. B. Sabitov, A. R. Zaynullov, “On the theory of the known inverse problems for the heat transfer equation”, Uchenye Zapiski Kazanskogo Universiteta. Seriya Fiziko-Matematicheskie Nauki, 161, no. 2, Kazan University, Kazan, 2019, 274–291
Linking options:
https://www.mathnet.ru/eng/uzku1517 https://www.mathnet.ru/eng/uzku/v161/i2/p274
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