Timeline for When is a Massey product the image of a Bockstein operator?
Current License: CC BY-SA 3.0
7 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Feb 6, 2012 at 9:01 | vote | accept | Mark Grant | ||
| Jun 18, 2011 at 8:12 | comment | added | Mark Grant | @SGP: Thanks, I read about dimension shifting soon after posting the question! So the question trivially has a positive answer. If you want to post as an answer I'd be happy to accept it (although Fernando's answer is also an interesting take). | |
| Jun 18, 2011 at 8:05 | comment | added | Mark Grant | @SGP: Yes it is. | |
| Jun 17, 2011 at 22:18 | comment | added | SGP | Also, if $Q \hookrightarrow M$ is an embedding into an injective $G$-module, then $H^i(G,N) = H^{i+1}(G,Q)$ for all $i > 0$; here $N$ is the quotient $M/Q$; this is called dimension-shifting..see Serre's Local Fields book or any other standard reference. | |
| Jun 17, 2011 at 22:13 | comment | added | SGP | If $Q$ has trivial $G$-action, isn't $H^1(G,Q) = Hom(G,Q)$? | |
| Jun 17, 2011 at 13:54 | answer | added | Fernando Muro | timeline score: 4 | |
| Jun 17, 2011 at 10:37 | history | asked | Mark Grant | CC BY-SA 3.0 |