In this paper  Ciliberto proposes a conjecture in order to characterize special linear systems of IPn through multiple base points. In this note we give a counterexample to this conjecture by showing that there is a substantial difference between the speciality of linear systems on IP 2 and those of IP3.
|Numero di pagine||7|
|Rivista||Advances in Geometry|
|Stato di pubblicazione||Published - 2004|
All Science Journal Classification (ASJC) codes
- Geometry and Topology