Special effect varieties and (-1)-curves
| dc.creator | Bocci, Cristiano | |
| dc.date | 2004-10-25 | |
| dc.date.accessioned | 2026-07-07T05:13:41Z | |
| dc.date.available | 2026-07-07T05:13:41Z | |
| dc.description | Here we introduce the concept of special effect curve which permits to study, from a different point of view, special linear systems in P^2, i.e. linear system with general multiple base points whose effective dimension is strictly greater than the expected one. In particular we study two different kinds of special effect: the α-special effect is defined by requiring some numerical conditions, while the definition of h^1-special effect concerns cohomology groups. We state two new conjectures for the characterization of special linear systems and we prove they are equivalent to the Segre and the Harbourne-Hirschowitz ones. | |
| dc.description | LATEX, 15 pages | |
| dc.identifier | https://arxiv.org/abs/math/0410527 | |
| dc.identifier | http://arxiv.org/abs/math/0410527 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/72996 | |
| dc.subject | Algebraic Geometry | |
| dc.subject | 14C20 (Primary). 14N05, 14H20, 41A05 (Secondary) | |
| dc.title | Special effect varieties and (-1)-curves | |
| dc.type | text |