Nonnormal del Pezzo surfaces
| dc.creator | Reid, Miles | |
| dc.date | 1994-04-05 | |
| dc.date.accessioned | 2026-07-07T09:06:03Z | |
| dc.date.available | 2026-07-07T09:06:03Z | |
| dc.description | This paper studies reduced, connected, Gorenstein surfaces with ample -K, assumed to be reducible or nonnormal. The normalisation is a union of one or more standard surfaces (scrolls and Veronese surfaces), marked with a conic as double locus. The question is how to glue these together to get a Gorenstein scheme. In characteristic 0, the results amount to a classification of projective surfaces in the style of the 1880s. However, the methods involve a study of the dualising sheaf of a nonnormal variety in terms of Rosenlicht differentials, and there is a subtle pathology in characteristic p due to Mori and S. Goto. | |
| dc.description | amsTeX 2.1 (amsppt format), submitted to Math Proceedings, RIMS | |
| dc.identifier | https://arxiv.org/abs/alg-geom/9404002 | |
| dc.identifier | http://arxiv.org/abs/alg-geom/9404002 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/149882 | |
| dc.subject | Algebraic Geometry | |
| dc.title | Nonnormal del Pezzo surfaces | |
| dc.type | text |