Timeline for Group cohomology with $Z_2$ coefficient
Current License: CC BY-SA 3.0
7 events
| when toggle format | what | by | license | comment | |
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| Apr 13, 2017 at 12:58 | history | edited | CommunityBot |
replaced http://mathoverflow.net/ with https://mathoverflow.net/
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| Oct 17, 2011 at 8:05 | comment | added | Chris Gerig | (flip the M and M' entries around actually; but I guess the typo is evident) | |
| Oct 16, 2011 at 3:42 | history | edited | Chris Gerig | CC BY-SA 3.0 |
added 275 characters in body
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| Oct 16, 2011 at 3:26 | vote | accept | Xiao-Gang Wen | ||
| Oct 16, 2011 at 1:24 | comment | added | Chris Gerig | .... No, it relates $H^*(G_1\times G_2,M\otimes M')$ to $H^*(G_1,M)$ and $H^*(G_2,M')$. Take $G_2=0$ and $M=\mathbb{Z}_2$ and $M'=\mathbb{Z}$. | |
| Oct 16, 2011 at 0:34 | comment | added | Xiao-Gang Wen | Dear Chris: Kunneth formula relates $H^*[G_1\times G_2, M]$ to $H^*[G_1, M]$ and $H^*[G_2, M]$. I do not know how Kunneth formula relates $H^*[G, Z_2]$ to $H^*[G, Z]$. | |
| Oct 16, 2011 at 0:20 | history | answered | Chris Gerig | CC BY-SA 3.0 |