Timeline for Proving if fibres are reduced or not.
Current License: CC BY-SA 2.5
5 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Jan 23, 2010 at 23:46 | answer | added | VA. | timeline score: 6 | |
| Jan 23, 2010 at 23:02 | answer | added | Qing Liu | timeline score: 5 | |
| Jan 23, 2010 at 19:53 | comment | added | Jinhyun Park | Sorry for being imprecise. Here $k$-varieties mean, integral $k$-schemes of finite type over $k$, where the middle scheme isn't probably fitting into the case. Do you know any other example where X, Y, Z are all k-varieties? | |
| Jan 23, 2010 at 19:49 | comment | added | Martin Brandenburg | Counterexample: $Spec k \to Spec k[X]/(X^2) \to Spec k$. | |
| Jan 23, 2010 at 19:23 | history | asked | Jinhyun Park | CC BY-SA 2.5 |