Geodesic
On existence of nodal solution to elliptic equations with convex-concave nonlinearities
Ufa mathematical journal, Tome 5 (2013) no. 2, pp. 18-30 Cet article a éte moissonné depuis la source Math-Net.Ru

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In a bounded connected domain $\Omega \subset \mathbb{R}^N$, $N \geqslant 1$, with a smooth boundary, we consider the Dirichlet boundary value problem for elliptic equation with a convex-concave nonlinearity \begin{equation*} \begin{cases} -\Delta u = \lambda |u|^{q-2} u + |u|^{\gamma-2} u, \quad x \in \Omega \\ u|_{\partial \Omega} = 0, \end{cases} \end{equation*} where $1 q 2 \gamma 2^*$. As a main result, we prove the existence of a nodal solution to this equation on the nonlocal interval $\lambda \in (-\infty, \lambda_0^*)$, where $\lambda_0^*$ is determined by the variational principle of nonlinear spectral analysis via fibering method.
Keywords: convex-concave nonlinearity, fibering method.
Mots-clés : nodal solution 
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V. E. Bobkov. On existence of nodal solution to elliptic equations with convex-concave nonlinearities. Ufa mathematical journal, Tome 5 (2013) no. 2, pp. 18-30. http://geodesic.mathdoc.fr/item/UFA_2013_5_2_a2/

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