Timeline for Covering seifert manifolds
Current License: CC BY-SA 3.0
13 events
| when toggle format | what | by | license | comment | |
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| Jan 20, 2017 at 12:54 | answer | added | Bruno Martelli | timeline score: 1 | |
| S Oct 21, 2013 at 13:09 | history | suggested | CommunityBot | CC BY-SA 3.0 |
Improved grammar.
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| Oct 21, 2013 at 13:07 | review | Suggested edits | |||
| S Oct 21, 2013 at 13:09 | |||||
| Oct 18, 2013 at 7:42 | vote | accept | jhoel | ||
| Oct 8, 2013 at 5:24 | comment | added | ThiKu | A 3-manifold is a Seifert fibration if and only if the center of its fundamental group contains an infinite cyclic subgroup (Casson-Jungreis, Gabai). So you would have to check that this cyclic group is still central in the group extension which is the fundamental group of your original manifold, but this seems not obvious. | |
| Oct 5, 2013 at 18:47 | vote | accept | jhoel | ||
| Oct 18, 2013 at 7:42 | |||||
| Oct 5, 2013 at 17:54 | answer | added | HJRW | timeline score: 3 | |
| Oct 5, 2013 at 13:00 | history | edited | jhoel | CC BY-SA 3.0 |
added 39 characters in body
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| Oct 5, 2013 at 12:58 | comment | added | jhoel | Sorry, M have finite covering orientable that is seifert then M is 3-manifold seifert | |
| Oct 5, 2013 at 12:21 | review | Close votes | |||
| Oct 7, 2013 at 14:53 | |||||
| Oct 5, 2013 at 5:28 | comment | added | Andy Putman | I think you must have scrambled the question. Since every manifold has an orientable double-cover, it appears that right now you are asking if every 3-manifold is seifert-fibered (clearly false). | |
| Oct 5, 2013 at 4:38 | review | First posts | |||
| Oct 5, 2013 at 8:07 | |||||
| Oct 5, 2013 at 4:20 | history | asked | jhoel | CC BY-SA 3.0 |