A remark on an overdetermined problem in riemannian geometry

Giulio Ciraolo, Luigi Vezzoni

Research output: Contribution to conferenceOtherpeer-review

2 Citations (Scopus)


Let (M, g) be a Riemannian manifold with a distinguished point O and assume that the geodesic distance d from O is an isoparametric function. Let Ω ⊂ M be a bounded domain, with O ∈ Ω, and consider the problem Δpu = −1 in Ω with u = 0on∂Ω, where Δp is the p-Laplacian of g. We prove that if the normal derivative ∂νu of u along the boundary of Ω is a function of d satisfying suitable conditions, then Ω must be a geodesic ball. In particular, our result applies to open balls of Rn equipped with a rotationally symmetric metric of the form g = dt2 + ρ2 (t) gS, where gS is the standard metric of the sphere.
Original languageEnglish
Number of pages10
Publication statusPublished - 2016

All Science Journal Classification (ASJC) codes

  • General Mathematics

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