Timeline for Lifts of smooth algebras
Current License: CC BY-SA 4.0
4 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Apr 4, 2019 at 6:30 | comment | added | Laurent Moret-Bailly | In general $i_*\mathcal{O}_Y$ is not coherent, only quasicoherent. Next, where do you use the assumptions that $(R,I)$ is henselian and $A$, $B$ are smooth? | |
| Apr 3, 2019 at 21:18 | comment | added | John P. | In the special case when $\text{Spec}(A)$ is an affine space over $R/I$, or a distinguished affine open of a projective space over $R/I$, can one lift the relations directly, to get a surjective lift $A\to B$ on the nose without replacing $\text{Spec}(A)$ with an open neighborhood of $\text{Spec}(A_0)$? I’d just like to be sure | |
| Apr 3, 2019 at 21:08 | vote | accept | John P. | ||
| Apr 3, 2019 at 21:03 | history | answered | Piotr Achinger | CC BY-SA 4.0 |