Polarized Pushouts for Finite Fields
| dc.creator | Keel, Sean | |
| dc.date | 2002-04-19 | |
| dc.date | 2003-03-06 | |
| dc.date.accessioned | 2026-07-07T04:47:56Z | |
| dc.date.available | 2026-07-07T04:47:56Z | |
| dc.description | Let p: Y--> X be a surjection between schemes projective over the algebraic closure of a finite field. Let L be a line bundle on X such that p^*(L) is globally generated. I give a natural necessary and sufficient condition under which some positive tensor power of L is globally generated. I apply this to give a sufficient condition for semi-ampleness of nef line bundles on the moduli space of stable pointed curves, in positive characteristic. | |
| dc.description | Final Version. To appear in K60 volume of Communications in Algebra | |
| dc.identifier | https://arxiv.org/abs/math/0204243 | |
| dc.identifier | http://arxiv.org/abs/math/0204243 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/63860 | |
| dc.subject | Algebraic Geometry | |
| dc.title | Polarized Pushouts for Finite Fields | |
| dc.type | text |