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Inverse extremum problem for a model of endovenous laser ablation

  • Andrey Kovtanyuk ORCID logo EMAIL logo , Alexander Chebotarev and Alena Astrakhantseva

Abstract

An inverse extremum problem (optimal control problem) for a quasi-linear radiative-conductive heat transfer model of endovenous laser ablation is considered. The problem is to find the powers of the source spending on heating the fiber tip and on radiation. As a result, it provides a given temperature distribution in some part of the model domain. The unique solvability of the initial-boundary value problem is proved, on the basis of which the solvability of the optimal control problem is shown. An iterative algorithm for solving the optimal control problem is proposed. Its efficiency is illustrated by a numerical example.

MSC 2010: 35Q79; 49J20

Award Identifier / Grant number: 075-15-2019-1878

Funding statement: This work was supported by the Ministry of Education and Science of the Russian Federation (project 075-15-2019-1878).

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Received: 2020-08-26
Revised: 2020-10-11
Accepted: 2020-10-16
Published Online: 2020-11-19
Published in Print: 2021-06-01

© 2020 Walter de Gruyter GmbH, Berlin/Boston

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