The Lin-Ni’s problem for mean convex domains
Résumé
We prove some refined asymptotic estimates for postive blowing up solutions to ∆u+u = n(n−2)u n+2 n−2 on Ω, ∂ν u = 0 on ∂Ω; Ω being a smooth bounded domain of R n , n ≥ 3. In particular, we show that concentration can occur only on boundary points with nonpositive mean curvature when n = 3 or n ≥ 7. As a direct consequence, we prove the validity of the Lin-Ni's conjecture in dimension n = 3 and n ≥ 7 for mean convex domains and with bounded energy. Recent examples by Wang-Wei-Yan [32] show that the bound on the energy is a necessary condition. Frédéric Robert dedicates this work to Clémence Climaque
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