Timeline for when is the restriction $H^2(G,\mathbb{C}^*)\to H^2(K,\mathbb{C}^*)$ surjective?
Current License: CC BY-SA 3.0
4 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Dec 8, 2015 at 7:39 | comment | added | Steve | @Prometheus I will be thankful to you if can tell me what is that algorithm by which I can check that 2-cocyclw on $K$ is image of 2-cocycle on $G$. | |
| Aug 3, 2014 at 1:12 | comment | added | Mariano Suárez-Álvarez | When G is abelian or, more generally, when K is normal, somrthing can be said by looking at the Leray Hochschild Serre spextral sequence. | |
| Aug 3, 2014 at 0:30 | review | First posts | |||
| Aug 3, 2014 at 0:52 | |||||
| Aug 3, 2014 at 0:25 | history | asked | Ofir | CC BY-SA 3.0 |