Timeline for Normal generation of Torelli
Current License: CC BY-SA 3.0
4 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Jun 4, 2012 at 21:31 | vote | accept | Igor Rivin | ||
| Jun 4, 2012 at 19:43 | comment | added | Andy Putman | Whoops! Anyway, the automorphism group of a surface group is just the mapping class group of a surface with a single puncture. My paper give generators for the Torelli group of a surface with one boundary component, but this surjects onto the Torelli group of a punctured surface with kernel generated by the Dehn twist about the boundary component. This gives the desired result for punctured surfaces. | |
| Jun 4, 2012 at 19:39 | comment | added | Igor Rivin | @Andy: Thanks! But (in case there is any misunderstanding), my second question is about $\mbox{Aut}$ of the surface group, not the free group... | |
| Jun 4, 2012 at 19:18 | history | answered | Andy Putman | CC BY-SA 3.0 |