The interior transmission eigenvalue problem for absorbing media

Fioralba Cakoni, David Colton, Houssem Haddar

Research output: Contribution to journalArticlepeer-review

20 Scopus citations


In recent years, the transmission eigenvalue problem has been extensively studied for non-absorbing media. In this paper, we initiate the study of this problem for absorbing media. In particular, we show that, in the case of absorbing media, transmission eigenvalues form a discrete set, exist for sufficiently small absorption and for spherically stratified media exist without this assumption. For constant index of refraction, we also obtain regions in the complex plane where the transmission eigenvalues cannot exist and obtain a priori estimates for real transmission eigenvalues.

Original languageEnglish (US)
Article number045005
JournalInverse Problems
Issue number4
StatePublished - Apr 2012
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Theoretical Computer Science
  • Signal Processing
  • Mathematical Physics
  • Computer Science Applications
  • Applied Mathematics


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