Timeline for Cohomologies of double covers
Current License: CC BY-SA 3.0
6 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Nov 16, 2016 at 3:33 | comment | added | user42024 | Yes, it is. E.g. you can see that from the same spectral sequence and the fact that higher cohomologies of a finite group ($\mathbb Z/2\mathbb Z$ in your case) in an $\mathbb R$-vector space are 0 | |
| Nov 15, 2016 at 19:20 | comment | added | Basics | Thanks for your quick answer but is it still true when the coeffiecient ring is $\mathbb Z$, not $\mathbb R$? | |
| Nov 15, 2016 at 19:13 | comment | added | abx | The last sentence is not true, as you can see from the Hochschild-Serre spectral sequence. | |
| Nov 15, 2016 at 19:09 | history | undeleted | Giulio | ||
| Nov 15, 2016 at 19:09 | history | deleted | Giulio | via Vote | |
| Nov 15, 2016 at 19:09 | history | answered | Giulio | CC BY-SA 3.0 |