Please use this identifier to cite or link to this item: http://hdl.handle.net/10773/18697
 Title: Nonlinear periodic problems superlinear at $+infty$ and sublinear at. $-infty$ Author: Aizicovici, S.Papageorgiou, N. S.Staicu, V. Keywords: Asymmetric reactionNonhomogeneous differential opertatorC-conditionCritical groupsHomotopy equivalentmountain pass theorem Issue Date: 2013 Publisher: American Romanian Academy Abstract: We consider a nonlinear periodic problem driven by a nonlinear, nonhomogeneous differential operator with a reaction which exhibits an asymmetric growth at $+\infty$ and at $-\infty$. It is $\left( p-1\right) -$superlinear near $+\infty$ and $\left( p-1\right) -$ sublinear near $-\infty$. A particular case of our problem is that of periodic equations with the scalar $p-$ Laplacian and an asymmetric nonlinearity. Using variational methods and Morse theory, we prove the existence of at least three nontrivial solutions. Peer review: yes URI: http://hdl.handle.net/10773/18697 ISSN: 2182-567X Publisher Version: http://system.lm-ns.org/index.php/lm-ns/article/view/48 Appears in Collections: CIDMA - ArtigosFAAG - Artigos

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