Timeline for Semisimplicity of the étale cohomology mod $p$
Current License: CC BY-SA 4.0
4 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Mar 14, 2021 at 21:26 | vote | accept | curious math guy | ||
| Mar 14, 2021 at 21:22 | answer | added | user175951 | timeline score: 7 | |
| Mar 14, 2021 at 21:13 | comment | added | Peter Scholze | Even if $\ell\neq \mathrm{char} k$, there is no reason that $H^i(X_{k^{\mathrm{sep}}},\mathbb F_\ell)$ is semisimple, because of the reduction modulo $\ell$ issue. In fact, I think this representation can be pretty arbitrary. The same ought to happen mod $p$. | |
| Mar 14, 2021 at 20:36 | history | asked | curious math guy | CC BY-SA 4.0 |