p-fractional Kirchhoff equations involving critical nonlinearities

The paper deals with Kirchhoff type equations on the whole space, driven by the p-fractional Laplace operator, involving critical Hardy-Sobolev nonlinearities and nonnegative potentials. We present different variational approaches to overcome the lack of compactness at critical levels, due to the presence of critical terms as well as the possibly degenerate nature of the Kirchhoff problem.