Abstract In this paper, we study the existence of nodal solutions for the Schrodinger-Poisson systems with concave-convex nonlinearities (0.1) { − Δ u + ϕ u = λ | u… Click to show full abstract
Abstract In this paper, we study the existence of nodal solutions for the Schrodinger-Poisson systems with concave-convex nonlinearities (0.1) { − Δ u + ϕ u = λ | u | p − 2 u + | u | q − 2 u in Ω , − Δ ϕ = u 2 in Ω , u , ϕ = 0 on ∂ Ω , where Ω is a bounded domain with smooth boundary ∂Ω in R 3 , 1 p 2 , 4 q 6 . By constrained variational method and quantitative deformation lemma, we prove that there exists a constant λ ⁎ > 0 such that for any λ λ ⁎ , problem (0.1) has a nodal solution u λ with positive energy.
               
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