Slow quasiregular mappings and universal coverings
Pankka, Pekka
Duke Math. J., Tome 141 (2008) no. 1, p. 293-320 / Harvested from Project Euclid
We define slow quasiregular mappings and study cohomology and universal coverings of closed manifolds receiving slow quasiregular mappings. We show that closed manifolds receiving a slow quasiregular mapping from a punctured ball have the de Rham cohomology type of either $\mathbb{S}^n$ or $\mathbb{S}^{n-1}\times \mathbb{S}^1$ . We also show that in the case of manifolds of the cohomology type of $\mathbb{S}^{n-1}\times \mathbb{S}^1$ , the universal covering of the manifold has exactly two ends, and the lift of the slow mapping into the universal covering has a removable singularity at the point of punctuation. We also obtain exact growth bounds and a global homeomorphism–type theorem for slow quasiregular mappings into the manifolds of the cohomology type $\mathbb{S}^{n-1}\times \mathbb{S}^1$
Publié le : 2008-02-01
Classification:  30C65,  53C21,  58A12
@article{1200601793,
     author = {Pankka, Pekka},
     title = {Slow quasiregular mappings and universal coverings},
     journal = {Duke Math. J.},
     volume = {141},
     number = {1},
     year = {2008},
     pages = { 293-320},
     language = {en},
     url = {http://dml.mathdoc.fr/item/1200601793}
}
Pankka, Pekka. Slow quasiregular mappings and universal coverings. Duke Math. J., Tome 141 (2008) no. 1, pp.  293-320. http://gdmltest.u-ga.fr/item/1200601793/