Quasiregular ellipticity of open and generalized manifolds

Pekka Pankka, Kai Rajala, Jang-Mei Wu

We study the existence of geometrically controlled branched covering maps from ${\mathbb{R}}^3$ to open $3$-manifolds or to decomposition spaces ${\mathbb{S}}^3/G$, and from $\mathbb S^3…