On stability for a translated obstacle with impedance boundary condition

Jijun Liu, Jinkeun Seo

Research output: Contribution to journalArticlepeer-review

18 Citations (Scopus)


This paper considers an inverse problem of determining the location of a known obstacle and its boundary impedance from one or two incident waves. We firstly derive a concrete formula of the far-field pattern due to a translation of the obstacle and perturbation of its boundary impedance. Based on this formula, we establish Lipschitz stability for the recovery of translation of an obstacle with one incident wave. In the special case of obstacle being a ball, Lipschitz stability for the recovery of both location and its boundary coefficient can be obtained using two incident waves.

Original languageEnglish
Pages (from-to)731-744
Number of pages14
JournalNonlinear Analysis, Theory, Methods and Applications
Issue number5
Publication statusPublished - 2004 Nov

Bibliographical note

Funding Information:
This is a project supported by NSFC (10371018). The first named author thanks Yonsei University for its hospitality during his visiting. The authors also wish to express their thanks to the referees for their helpful suggestions.

All Science Journal Classification (ASJC) codes

  • Analysis
  • Applied Mathematics


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