Abstract
In this paper, we use some critical point theorems to discuss the existence of weak solutions for the nonlinear elliptic equations \(- \Delta _{\alpha } u + V(x) u = f(x, u)+g(x)|u|^{q-2}u\) and \(- \Delta _{\alpha } u + V(x) u = f(x, u) +\lambda u\) in \(\Omega \) with \(u=0\) on \(\partial \Omega \), where \(\Omega \) is a bounded domain in \(\mathbb R^n\), \(\Delta _{\alpha }\) is the strongly degenerate operator, the functions \(\alpha =(\alpha _1, \ldots , \alpha _n) : \; \mathbb R^n \rightarrow \mathbb R^n\) satisfies some certain conditions, \(\lambda \) is a parameter, \(q\in (1,2)\), and \( f:\Omega \times \mathbb R\rightarrow \mathbb R\) is a Carathéodory function and g is a function that we will specify later.
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Rahal, B., Hamdani, M.K. Infinitely many solutions for \(\Delta _\alpha \)-Laplaceequations with sign-changing potential. J. Fixed Point Theory Appl. 20, 137 (2018). https://doi.org/10.1007/s11784-018-0617-3
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DOI: https://doi.org/10.1007/s11784-018-0617-3
Keywords
- \(\Delta _\alpha \)-Laplace operator
- critical point theorems
- mountain pass theorem
- fountain theorem
- weak solutions.