Rescaling principle for isolated essential singularities of quasiregular mappings
arXiv:1211.2977 · doi:10.1090/S0002-9939-2014-12378-1
Abstract
We establish a rescaling theorem for isolated essential singularities of quasiregular mappings. As a consequence we show that the class of closed manifolds receiving a quasiregular mapping from a punctured unit ball with an essential singularity at the origin is exactly the class of closed quasiregularly elliptic manifolds, that is, closed manifolds receiving a non-constant quasiregular mapping from a Euclidean space.
arXiv comment8 pages, added a corollary and references