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Improved asymptotic analysis for dynamical probe method.

Authors :
Ji, Yong-Gwan
Kim, Kyoungsun
Nakamura, Gen
Source :
Journal of Inverse & Ill-Posed Problems. Aug2016, Vol. 24 Issue 4, p489-498. 10p.
Publication Year :
2016

Abstract

We concerned with the asymptotic analysis for the dynamical probe method which is a reconstruction scheme to identify an anomaly inside a heat conductor from the Neumann-to-Dirichlet map. In this paper an inclusion was considered as an anomaly and we succeeded giving an improved asymptotic behavior of the indicator function defined in terms of the Neumann-to-Dirichlet map to identify not only the location of the inclusion but also some of its physical properties simultaneously. The two major improvements made for analyzing the asymptotic behavior of the indicator function are as follows. Firstly, we can know the distance to the boundary of unknown inclusion as we probe it from its outside. This improvement can avoid overshooting the boundary points as much as possible if we probe it from outside the inclusion numerically. Secondly, we can know the value of heat conductivity of inclusion as we probe close to the inclusion even without touching it. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
09280219
Volume :
24
Issue :
4
Database :
Academic Search Index
Journal :
Journal of Inverse & Ill-Posed Problems
Publication Type :
Academic Journal
Accession number :
117108362
Full Text :
https://doi.org/10.1515/jiip-2016-0028