Timeline for Technique to prove basepoint-freeness
Current License: CC BY-SA 2.5
8 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Sep 4, 2010 at 10:52 | comment | added | Henri | Yes, you could have a look at it here : www.math.jussieu.fr/~mourouga/note_abondant.pdf (its both in french and in english, don't worry!) | |
| Sep 4, 2010 at 10:51 | comment | added | Henri | For example, as I mentionned it, a nef and big divisor $D$ is semiample if and only if its graded ring of sections $R(X,D)=\bigoplus_{m\in \mathbb N} H^0(X,mD)$ is finitely generated. | |
| Sep 4, 2010 at 10:49 | comment | added | Moon | Anyway, thank you for answer. By the way, what is the result of Mourougane and Russo? Do you mean the theorem 2.3.9 in PAG? | |
| Sep 4, 2010 at 10:46 | comment | added | Moon | You are right, nefness + bigness does not guarantee semi-ampleness. My question is following: Is there any sufficient condition to get semi-ampleness? With which conditions we get semi-ample property? | |
| Sep 4, 2010 at 10:32 | history | undeleted | Henri | ||
| Sep 4, 2010 at 10:32 | history | edited | Henri | CC BY-SA 2.5 |
added 432 characters in body
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| Sep 3, 2010 at 13:30 | history | deleted | Henri | ||
| Sep 3, 2010 at 13:17 | history | answered | Henri | CC BY-SA 2.5 |