Abstract
In this paper, the following new class of problems is studied
where \(\Omega \) is a smooth bounded domain in \({\mathbb {R}}^N\) (\(N\ge 3\)), \(p\in C({\overline{\Omega }})\) such that \(2\le p(x)<N\) for all \(x\in {\overline{\Omega }}\), and a is \(C^1\) real function. Without assuming the \(C^1\) and the well-known Ambrosetti-Rabinowitz conditions on the reaction term f, we prove that problem \({\mathcal {P}}\) has a least-energy sign-changing weak solution. Note that, our approach is based on a variant of the quantitative deformation lemma and some new technical lemmas.
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Missaoui, H. Ground State Sign-Changing Solution for a Large Class of \( p(x) \& q(x)\)-Quasilinear Elliptic Equations with Nonsmooth Nonlinearity. Mediterr. J. Math. 20, 242 (2023). https://doi.org/10.1007/s00009-023-02447-6
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DOI: https://doi.org/10.1007/s00009-023-02447-6
Keywords
- Sign-changing solutions
- Sobolev spaces with variable exponent
- Nehari manifold method
- quantitative deformation Lemma