A Robin problem for a class of quasilinear operators and a related minimizing problem
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2004-10
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Nonlinear Analysis: Theory, Methods & Applications
Resumo
In this paper we establish the existence of multiple radial solutions for a class of quasilinear operators with nonlinear boundary Robin conditions. Besides other conditions, we consider the nonlinearities having a behavior at -∞ at least like a linearity of slope less than first eigenvalue λ1(R). The technical approach is by variational methods, which is mainly based on a version of Mountain Pass Theorem due to Ghoussoub and Preiss.
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Robin conditions, Radial solutions, Variational characterization