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arXiv · 2011.05654

Multiple solutions for asymptotically $q$-linear $(p,q)$-Laplacian problems

Francesca Colasuonno
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Abstract

We investigate the existence and the multiplicity of solutions of the problem $$ \begin{cases} -\Delta_p u-\Delta_q u = g(x, u)\quad & \mbox{in } \Omega,\\ \displaystyle{u=0} & \mbox{on } \partial\Omega, \end{cases} $$ where $\Omega$ is a smooth, bounded domain of $\mathbb R^N$, $1<p<q<\infty$, and the nonlinearity $g$ behaves as $u^{q-1}$ at infinity. We use variational methods and find multiple solutions as minimax critical points of the associated energy functional. Under suitable assumptions on the nonlinearity, we cover also the resonant case.

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Francesca Colasuonno. 2020-11-11. Multiple solutions for asymptotically $q$-linear $(p,q)$-Laplacian problems. https://arxiv.org/abs/2011.05654

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