Timeline for Group cohomology without G-modules (a.k.a. what does this bar construction compute?)
Current License: CC BY-SA 3.0
4 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Mar 6, 2014 at 0:07 | comment | added | Zhen Lin | $F U$ is a comonad, not a monad. Monads yield cosimplicial resolutions. | |
| Mar 5, 2014 at 21:51 | history | edited | Mariano Suárez-Álvarez | CC BY-SA 3.0 |
added 218 characters in body
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| Mar 5, 2014 at 21:47 | comment | added | Mariano Suárez-Álvarez | This was (in his context) observed first, I guess, by Hochschild. One of his first two or three papers on his cohomology theory proves, among other things, that Hochschild cohomology can be obtained by derivating the $\operatorname{Der}$ functor, up to a shift and a twist, just as above. | |
| Mar 5, 2014 at 21:46 | history | answered | Mariano Suárez-Álvarez | CC BY-SA 3.0 |