Infinitely many solutions for quasilinear Schrödinger equations under broken symmetry situation

Liang Zhang, Xianhua Tang, Yi Chen

DOI: http://dx.doi.org/10.12775/TMNA.2016.057

Abstract


In this paper, we study the existence of infinitely many solutions for the quasilinear Schrödinger equations $$ \begin{cases} -\Delta u-\Delta(|u|^{\alpha})|u|^{\alpha-2}u=g(x,u)+h(x,u) &\text{for } x\in \Omega,\\ u=0 &\text{for } x\in \partial\Omega, \end{cases} $$ where $\alpha\geq 2$, $g, h\in C(\Omega\times \mathbb{R}, \mathbb{R})$. When $g$ is of superlinear growth at infinity in $u$ and $h$ is not odd in $u$, the existence of infinitely many solutions is proved in spite of the lack of the symmetry of this problem, by using the dual approach and Rabinowitz perturbation method. Our results generalize some known results and are new even in the symmetric situation.

Keywords


Broken symmetry; dual approach; quasilinear Schrödinger equation; Rabinowitz perturbation method

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