Quantitative stability estimates for a two-phase Serrin-type overdetermined problem

Lorenzo Cavallina, Giorgio Poggesi, Toshiaki Yachimura

Research output: Contribution to journalArticlepeer-review


In this paper, we deal with an overdetermined problem of Serrin-type with respect to a two-phase elliptic operator in divergence form with piecewise constant coefficients. In particular, we consider the case where the two-phase overdetermined problem is close to the one-phase setting. First, we show quantitative stability estimates for the two-phase problem via a one-phase stability result. Furthermore, we prove non-existence for the corresponding inner problem by the aforementioned two-phase stability result.

Original languageEnglish
Article number112919
JournalNonlinear Analysis, Theory, Methods and Applications
Publication statusPublished - 2022 Sept


  • Overdetermined problem
  • Serrin's problem
  • Stability
  • Transmission condition
  • Two-phase

ASJC Scopus subject areas

  • Analysis
  • Applied Mathematics


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