Article Contents
Article Contents

# Symmetries and blow-up phenomena for a Dirichlet problem with a large parameter

• \noindent For the Dirichlet problem $-\Delta u+\lambda V(x) u=u^p$ in $\Omega \subset \mathbb R^N$, $N\geq 3$, in the regime $\lambda \to +\infty$ we aim to give a description of the blow-up mechanism. For solutions with symmetries an uniform bound on the invariant" Morse index provides a localization of the blow-up orbits in terms of c.p.'s of a suitable modified potential. The main difficulty here is related to the presence of fixed points for the underlying group action.
Mathematics Subject Classification: Primary: 35J60, 35B25, 35B44; Secondary: 35J25.

 Citation:

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