Some inverse problems for convection-diffusion equations

• Main Authors: Pyatkov, S. G., Safonov, E. I., Пятков, С. Г., Сафонов, Е. И.
• Format: Article in Journal/Newspaper
• Language: Chinese
• Published: Издательский центр ЮУрГУ 2014
• Subjects: parabolic system; convection-diffusion; heat-and-mass transfer; inverse problem; control problem; boundary value problem; well-posedness; параболические системы; конвекция-диффузия; тепломассоперенос; обратная задача; задача управления; краевая задача; корректность; УДК 517.958:532/.533; ГРНТИ 27.35; khanty
• Online Access: http://dspace.susu.ac.ru/xmlui/handle/0001.74/5283

S.G. Pyatkov, Yugra State University, Khanty-Mansyisk, Russian Federation,[e-mail],E.I. Safonov, Yugra State University, Khanty-Mansyisk, Russian Federation,[e-mail] We examine the well-posedness questions for some inverse problems in the mathematical models of heat-and-mass transfer and convection-di usion processes. The coe cients and right-hand side of the system are recovered under certain additional overdetermination conditions, which are the integrals of a solution with weights over some collection of domains. We prove an existence and uniqueness theorem, as well as stability estimates. The results are local in time. The main functional spaces used are Sobolev spaces. These results serve as the base for justifying of the convergence of numerical algorithms for inverse problems with pointwise overdetermination, which arise, in particular, in the heatand-mass transfer problems on determining the source function or the parameters of a medium.