Timeline for Etale cohomology of rigidification
Current License: CC BY-SA 3.0
5 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Aug 28, 2017 at 7:02 | comment | added | Laurent Moret-Bailly | Consider the case where the closed fiber is empty (but $X$ isn't). | |
| Aug 26, 2017 at 8:29 | comment | added | user42024 | @nfdc23 Oh. Or I could take something like $\mathbb Q_p(\mu_p)\langle x\rangle[t]/(t^p-px-1)$ which if it were $\mathbb Z_p(\mu_p)\langle x \rangle$ would give an inseperable extension of $\mathbb F_p[x]$ on the reduction modulo the maximal ideal of $\mathbb Z_p(\mu_p)$ | |
| Aug 26, 2017 at 7:53 | comment | added | user42024 | Ah, I see. For rigidification I can lift the Artin-Schreier covers of the reduction. | |
| Aug 26, 2017 at 0:40 | comment | added | nfdc23 | Have you thought about even the most basic case of the affine line over $O_K$ with $i=1$ and $n=p$ (connected cyclic finite etale covers of $p$-power degree over the analytic closed unit ball and the affine line) for $K \supset \mathbf{Q}_p(\zeta_p)$? | |
| Aug 25, 2017 at 23:31 | history | asked | user42024 | CC BY-SA 3.0 |