Timeline for Toric automorphism of P1 times P1 blown up at four pts
Current License: CC BY-SA 3.0
2 events
| when toggle format | what | by | license | comment | |
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| Sep 17, 2011 at 15:30 | comment | added | Ying Zhang | Nice. Looking back at this example, the strict transform of a nice $P^1$ is "strict" on the top since it passes through one of the points we blow up. It is a nice exercise to write down the total transform and see it on the nose that pulling back keeps the self-intersection number 0. | |
| Sep 16, 2011 at 1:52 | history | answered | Allen Knutson | CC BY-SA 3.0 |