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BIRS Workshop Lecture Videos

Hardy-Sobolev critical equation with boundary singularity: multiplicity and stability of the Pohozaev obstruction. Robert, Frédéric

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Let $\Omega$ be a smooth bounded domain in $\mathbb{R}^n$ ($n\geq 3$) such that $0\in\partial \Omega$. In this talk, we consider issues of non-existence, existence, and multiplicity of variational solutions for the borderline Dirichlet problem, $$ \left\{ \begin{array}{llll} -\Delta u-\gamma \frac{u}{|x|^2}- h(x) u &=& \frac{|u|^{2^\star(s)-2}u}{|x|^s} \ \ &\text{in } \Omega,\\ \hfill u&=&0 &\text{on }\ \partial\Omega, \end{array} \right.\eqno{(E)} $$ where $0

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