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Sep 23, 2016 at 14:04 comment added Maxime Fortier Bourque Regarding 2, my understanding is that the quotient map is not necessarily a covering map. If the order of the isometry is not prime, then a priori orbits can have different cardinalities. This can happen for diffeomorphisms, see mathoverflow.net/questions/222567/…
Dec 2, 2014 at 21:31 answer added Igor Rivin timeline score: 1
Dec 2, 2014 at 20:19 comment added Alex Degtyarev If $k=p$ is a prime, you can certainly combine 2 and 3: $K(\Bbb Z_p,1)$ cannot be finite dimensional.
Dec 2, 2014 at 20:13 review First posts
Dec 2, 2014 at 20:19
Dec 2, 2014 at 20:09 history asked Florian CC BY-SA 3.0