Skip to main content
6 events
when toggle format what by license comment
Nov 5, 2015 at 1:59 vote accept QSR
Nov 1, 2015 at 12:08 answer added Allen Hatcher timeline score: 7
Oct 13, 2015 at 3:43 comment added QSR @AllenHatcher: Thanks, Prof. Hatcher! Is it possible to replace the cube with other polyotpes or polyhedrons $P$ such that the associated vector bundle of the cover $O(3)\to O(3)/Sym(P)$ is not orientable?
Oct 12, 2015 at 15:24 comment added Allen Hatcher This is a closed orientable 3-manifold so its homology groups are determined by its fundamental group, which is the binary octahedral group. There is a very nice book by Montesinos that covers all examples of this type in three dimensions, called "Classical Tessellations and Three-Manifolds".
Oct 12, 2015 at 14:48 comment added Yoav Kallus Possible duplicate of mathoverflow.net/questions/215407/…
Oct 12, 2015 at 14:35 history asked QSR CC BY-SA 3.0