Timeline for Which 3-manifolds have positive rank gradient?
Current License: CC BY-SA 3.0
5 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Nov 16, 2015 at 16:12 | vote | accept | Pablo | ||
| Nov 16, 2015 at 14:32 | answer | added | Ian Agol | timeline score: 7 | |
| Nov 16, 2015 at 11:37 | comment | added | Pablo | @HJRW right! I knew this. So I want to know in which cases the rank gradient is known to be $ > 0$. Is there some exact meaning in "too many possibilities" ? | |
| Nov 16, 2015 at 11:34 | comment | added | HJRW | Well, any virtually fibred 3-manifold must have zero rank-gradient, so that doesn't leave too many possibilities. | |
| Nov 16, 2015 at 8:54 | history | asked | Pablo | CC BY-SA 3.0 |