Ground state solution of Fractional Schrödinger-Poisson-Slater equation: Double critical case

The fractional Schrödinger-Poisson-Slater equation can be derived from the Thomas-Fermi-Dirac-von Weizsäcker theory of charge screening in graphene. In this paper, we make an effort to study the behavior of bounded sequences in radial fractional Coulomb-Sobolev space under certain conditions, and then apply it to study the existence of Nehari-Pohožaev type ground state solutions for the fractional Schrödinger-Poisson-Slater equation with lower and upper critical exponents.