Timeline for Equivariant singular cohomology
Current License: CC BY-SA 2.5
5 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Feb 8, 2010 at 12:01 | vote | accept | Kevin H. Lin | ||
| Dec 23, 2009 at 3:23 | comment | added | Kevin H. Lin | Oops, yes, I meant the chain. Ok, I'll try to take a peek at the paper. | |
| Dec 23, 2009 at 3:17 | comment | added | Kevin McGerty | An abstract chain just has to have a $G$ action, not the ambient space. The idea I guess is that a chain in the Borel construction can be pulled back to $X\times EG$ and then I can approximate $EG$ by a smooth finite-dimensional manifold $E$ containing the pulled-back chain. Embed $X\times E$ in $\mathbb R^\infty$ and you have geometric chain (or rather its graph). Anyway the paper is nicely written if I remember, so probably it's better to read what they said! | |
| Dec 23, 2009 at 3:09 | comment | added | Kevin H. Lin | Yeah, I was guessing that it might be something along those lines. But then how do you put a free action of $G$ on $\mathbb{R}^n$? And then you still have to show that the result is independent of this choice? | |
| Dec 23, 2009 at 3:02 | history | answered | Kevin McGerty | CC BY-SA 2.5 |