Rigidity of extremal quasiregularly elliptic manifolds

Rami Luisto, Pekka Pankka

We show that for a closed $n$-manifold $N$ admitting a quasiregular mapping from the Euclidean $n$-space the following are equivalent: (1) order of growth of ${\pi }_1(N)$ is $n$, (2) $…