Nonlocal planar Schrödinger-Poisson systems in the fractional Sobolev limiting case
arXiv:2305.15274 · doi:10.1016/j.jde.2023.11.018
Abstract
We study the nonlinear Schrödinger equation for the fractional Laplacian strongly coupled with the Poisson equation in dimension two and with , which is the limiting case for the embedding of the fractional Sobolev space . We prove existence of solutions by means of a variational approximating procedure for an auxiliary Choquard equation in which the uniformly approximated sign-changing logarithmic kernel competes with the exponential nonlinearity. Qualitative properties of solutions such as symmetry and decay are also established by exploiting a suitable moving planes technique.