Timeline for flatness and restrictions to DVR
Current License: CC BY-SA 3.0
3 events
| when toggle format | what | by | license | comment | |
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| Nov 22, 2017 at 16:28 | comment | added | Jason Starr | The answer is basically the same as the answer to the following MathOverflow question: mathoverflow.net/questions/282655/… | |
| Nov 22, 2017 at 16:27 | comment | added | Jason Starr | No, that is not true. Consider the case where $T$ is $\text{Spec}\ \mathbb{C}[\epsilon]/\langle \epsilon^2 \rangle$ and $\mathcal{F}$ is the ideal sheaf generated by $\epsilon$. If you assume that $T$ is reduced, then the Valuative Criterion of Flatness gives a positive answer. | |
| Nov 22, 2017 at 16:24 | history | asked | user111251 | CC BY-SA 3.0 |