Timeline for Cohomologically trivial stacks
Current License: CC BY-SA 3.0
6 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Nov 20, 2012 at 13:17 | vote | accept | Lennart Meier | ||
| Nov 20, 2012 at 13:16 | comment | added | Jason Starr | @Sam: As Angelo points out below, you should replace "reductive" by "linearly reductive" or some other tameness condition. As is discussed, for instance, in the appendices of Mumford's "Geometric Invariant Theory", the functor of invariants is not exact for all reductive groups. | |
| Nov 20, 2012 at 7:15 | answer | added | Angelo | timeline score: 13 | |
| Nov 20, 2012 at 3:05 | answer | added | Akhil Mathew | timeline score: 4 | |
| Nov 19, 2012 at 22:57 | comment | added | Sam Gunningham | More generally, the quotient of an affine scheme by a reductive group has this property (as the functor of invariants is exact). | |
| Nov 19, 2012 at 16:16 | history | asked | Lennart Meier | CC BY-SA 3.0 |