Critical second-order elliptic equation with zero Dirichlet boundary condition in four dimensions

Autor: Zakaria Boucheche, Hichem Chtioui, Hichem Hajaiej
Jazyk: angličtina
Rok vydání: 2018
Předmět:
Zdroj: Electronic Journal of Differential Equations, Vol 2018, Iss 60,, Pp 1-32 (2018)
Druh dokumentu: article
ISSN: 1072-6691
Popis: We are concerned with the nonlinear critical problem $-\Delta u=K(x)u^{3}$, $u>0$ in $\Omega$, $u=0$ on $\partial\Omega$, where $\Omega$ is a bounded domain of $\mathbb{R}^4$. Under the assumption that $K$ is strictly decreasing in the outward normal direction on $\partial\Omega$ and degenerate at its critical points for an order $\beta \in (1,4)$, we provide a complete description of the lack of compactness of the associated variational problem and we prove an existence result of Bahri-Coron type.
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