Timeline for Cohomology analogue for central series of length more than two
Current License: CC BY-SA 2.5
5 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Aug 21, 2010 at 22:14 | vote | accept | Vipul Naik | ||
| Aug 21, 2010 at 22:14 | history | bounty ended | Vipul Naik | ||
| Aug 17, 2010 at 7:54 | comment | added | Torsten Ekedahl | As far as I know the "extension panachée" theory is only presented in the reference to SGA that I gave. I don't know of any reference that extends this to the central extension case. As far as I can see the only terminology I made up is CEXTP (if I recall correctly Grothendieck uses CEXT for central extensions, note that he uses all capital letters to denote the category of somethings). I guess I should also take (not very much) credit for naming the very useful WECIB-principle :-) By the way I think I was too pessimistic of extending the method to general $n$, it seems to more or less extend. | |
| Aug 16, 2010 at 15:03 | comment | added | Vipul Naik | @Torsten: This looks potentially very useful, but I don't have a good background in this area. Could you give some references to expositions on the background ideas here, and also perhaps point out more explicitly which of the terminology you've made up, and which of it was made up by others? Thanks a lot. Thanks for taking the time to think about this. | |
| Aug 15, 2010 at 22:06 | history | answered | Torsten Ekedahl | CC BY-SA 2.5 |