期刊
NODEA-NONLINEAR DIFFERENTIAL EQUATIONS AND APPLICATIONS
卷 29, 期 4, 页码 -出版社
SPRINGER INT PUBL AG
DOI: 10.1007/s00030-022-00777-0
关键词
Fractional p-Laplacian; Critical point theory; Morse theory
资金
- research project Evolutive and Stationary Partial Differential Equations with a Focus on Biomathematics - Fondazione di Sardegna (2019)
- grant: Nonlinear Differential Problems via Variational, Topological and Set-valued Methods [PRIN-2017AYM8XW]
This study investigates a Dirichlet problem driven by the degenerate fractional p-Laplacian and involving a nonlinear reaction. The research shows that under certain conditions, there are five nontrivial solutions for the problem, including two positive solutions, two negative solutions, and one nodal solution.
We deal with a Dirichlet problem driven by the degenerate fractional p-Laplacian and involving a nonlinear reaction which satisfies, among other hypotheses, a (p - 1)-linear growth at infinity with nonresonance above the first eigenvalue. The energy functional governing the problem is thus noncoercive. We focus on the behavior of the reaction near the origin, assuming that it has a (p - 1)-sublinear growth at zero, vanishes at three points, and satisfies a reverse Ambrosetti-Rabinowitz condition. Under such assumptions, by means of critical point theory and Morse theory, and using suitably truncated reactions, we show the existence of five nontrivial solutions: two positive, two negative, and one nodal.
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