THREE NONTRIVIAL SOLUTIONS FOR PERIODIC PROBLEMS WITH THE p-LAPLACIAN AND A p-SUPERLINEAR NONLINEARITY

被引:7
作者
Gasinski, Leszek [1 ]
Papageorgiou, Nikolaos S. [2 ]
机构
[1] Jagiellonian Univ, Inst Comp Sci, PL-30072 Krakow, Poland
[2] Natl Tech Univ Athens, Dept Math, Athens 15780, Greece
关键词
Scalar p-Laplacian; mountain pass theorem; critical groups; Morse theory; Poincare-Hopf formula; ELLIPTIC PROBLEMS; EQUATIONS; EXISTENCE; RESONANCE; INFINITY; DRIVEN;
D O I
10.3934/cpaa.2009.8.1421
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
We consider a nonlinear periodic problem driven by the scalar p-Laplacian and a nonlinearity that exhibits a p-superlinear growth near +/-infinity, but need not satisfy the Ambrosetti-Rabinowitz condition. Using minimax methods, truncations techniques and Morse theory, we show that the problem has at least three nontrivial solutions, two of which are of fixed sign.
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页码:1421 / 1437
页数:17
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