Please use this identifier to cite or link to this item: http://hdl.handle.net/10773/16464
 Title: On the Schrödinger–Poisson system with a general indefinite nonlinearity Author: Lirong HuangRocha, Eugénio M.Jianqing Chen Keywords: Non-autonomous Schrödinger–Poisson systemVariational methodPositive solutions Issue Date: 26-Apr-2016 Publisher: Elsevier Abstract: We study the existence and multiplicity of positive solutions of a class of Schrödinger–Poisson system: [View the MathML source Turn MathJax on] where k∈C(R3) changes sign in R3, lim∣x∣→∞k(x)=k∞<0, and the nonlinearity g behaves like a power at zero and at infinity. We mainly prove the existence of at least two positive solutions in the case that μ>μ1 and near μ1, where μ1 is the first eigenvalue of −Δ+id in H1(R3) with weight function h, whose corresponding positive eigenfunction is denoted by e1. An interesting phenomenon here is that we do not need the condition View the MathML source, which has been shown to be a sufficient condition to the existence of positive solutions for semilinear elliptic equations with indefinite nonlinearity (see e.g. Costa and Tehrani, 2001). Peer review: yes URI: http://hdl.handle.net/10773/16464 DOI: 10.1016/j.nonrwa.2015.09.001 ISSN: 1468-1218 Appears in Collections: CIDMA - ArtigosFAAG - Artigos

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