Abstract
We establish the existence of weak solution to the following class of fractional elliptic systems
where \(s \in (0,1)\), the potentials a, b are bounded from below and may change sign. The nonlinear term \(F \in C^1(\mathbb {R}^N \times \mathbb {R} ^2,\mathbb {R})\) can be asymptotically linear or superlinear at infinity. It interacts with the eigenvalues of the linearized problem. In the proofs we apply variational methods by considering both the resonant and nonresonant case. We notice that our results are new even in the local case \(s=1\).
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José Carlos de Albuquerque is partially supported by CAPES/Brazil. Marcelo F. Furtado is partially supported by CNPq/Brazil and FAPDF/Brazil. Edcarlos D. Silva is partially supported by CNPq grants 429955/2018-9.
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Albuquerque, J.C.d., Furtado, M.F. & Silva, E.D. Fractional elliptic systems with noncoercive potentials. Z. Angew. Math. Phys. 72, 187 (2021). https://doi.org/10.1007/s00033-021-01613-8
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DOI: https://doi.org/10.1007/s00033-021-01613-8
Keywords
- Variational methods
- Fractional Laplacian
- Elliptic systems
- Superlinear and asymptotically elliptic systems
- Linking theorems