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Pré-Publication, Document De Travail Année : 2021

Blow-up of solutions of critical elliptic equation in three dimensions

Résumé

We describe the asymptotic behavior of positive solutions $u_\epsilon$ of the equation $-\Delta u + au = 3\,u^{5-\epsilon}$ in $\Omega\subset\mathbb{R}^3$ with a homogeneous Dirichlet boundary condition. The function $a$ is assumed to be critical in the sense of Hebey and Vaugon and the functions $u_\epsilon$ are assumed to be an optimizing sequence for the Sobolev inequality. Under a natural nondegeneracy assumption we derive the exact rate of the blow-up and the location of the concentration point, thereby proving a conjecture of Br\'ezis and Peletier (1989). Similar results are also obtained for solutions of the equation $-\Delta u + (a+\epsilon V) u = 3\,u^5$ in $\Omega$.
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Dates et versions

hal-03505332 , version 1 (30-12-2021)

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Rupert L. Frank, Tobias König, Hynek Kovařík. Blow-up of solutions of critical elliptic equation in three dimensions. 2021. ⟨hal-03505332⟩
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