TY - JOUR T1 - Existence of Solutions for Schrodinger-Poisson Systems with Sign-changing Weight JO - Journal of Partial Differential Equations VL - 2 SP - 180 EP - 194 PY - 2011 DA - 2011/05 SN - 24 DO - http://doi.org/10.4208/jpde.v24.n2.7 UR - https://global-sci.org/intro/article_detail/jpde/5206.html KW - Schrödinger-Poisson system KW - existence result KW - sign-changing weight AB -

We study the existence of solutions for the Schrödinger-Poisson system $-Δu+u+k(x)φu=α(x)|u|^{p-1}u$, in $R^3$,  $-Δφ=k(x)u^2$, in $R^3$, where 3 ≤ p < 5, α(x) is a sign-changing function such that both the supports of α^+ and α^- may have infinite measure. We show that the problem has at least one nontrivial solution under some assumptions.