We consider a semilinear Robin problem driven by the Laplacian plus an indefinite and unbounded potential and a Caratheodory reaction term which is resonant both at zero and ± ∞. Using the Lyapunov–Schmidt reduction method and critical groups (Morse theory), we show that the problem has at least two nontrivial smooth solutions.
Papageorgiou, N.S.*, Vetro, C., Vetro, F. (2019). Pairs of solutions for Robin problems with an indefinite and unbounded potential, resonant at zero and infinity. MANUSCRIPTA MATHEMATICA, 158(3-4), 487-503 [10.1007/s00229-018-1044-x].
Pairs of solutions for Robin problems with an indefinite and unbounded potential, resonant at zero and infinity
Vetro, Calogero;Vetro, Francesca
2019-01-01
Abstract
We consider a semilinear Robin problem driven by the Laplacian plus an indefinite and unbounded potential and a Caratheodory reaction term which is resonant both at zero and ± ∞. Using the Lyapunov–Schmidt reduction method and critical groups (Morse theory), we show that the problem has at least two nontrivial smooth solutions.File in questo prodotto:
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