Ground state solutions of Schrödinger–Poisson systems with asymptotically constant potential

This paper is focused on the following Schrödinger–Poisson system [Formula: see text] where [Formula: see text] is weakly differentiable and tends asymptotically to a constant and [Formula: see text]. By introducing some new tricks, we prove that the above system admits a ground state solution under some mild assumptions on V and f. Our results generalize and improve the existing ones in the literature.