Properties of solutions to semilinear elliptic problem with Hardy potential (Q1989443)

This paper concerns the Neumann problem of a semilinear elliptic equation with Hardy potential and with Sobolev critical nonlinearity. The authors obtain infinitely many positive radial solutions with singularity at the origin. They also prove the existence, regularity and symmetry of least energy solutions. Furthermore, the authors also discuss the connections of their results with some existing results on related problems in the literature.