Algebraic Barth-Lefschetz theorems
| dc.creator | Badescu, Lucian | |
| dc.date | 1995-05-08 | |
| dc.date.accessioned | 2026-07-07T09:06:29Z | |
| dc.date.available | 2026-07-07T09:06:29Z | |
| dc.description | Using results of Hironaka-Matsumura and Faltings, we prove a strong version of the well known Fulton-Hansen connectivity theorem for weighted projective spaces. As a consequence we get the following result. If $Y$ is an irreducible subvariety of the $n$-dimensional projective space (over a field of arbitrary characteristic), then the diagonal embedding $Δ_Y$ is $G_3$ in $Y\times Y$. This fact implies a generalized version (with a characteristic-free proof) of a result of Ogus (in char. zero) and Speiser (in positive characteristic). | |
| dc.description | 18 pages, to appear in Nagoya Mathematical Journal. AMSTeX v. 2.1 | |
| dc.identifier | https://arxiv.org/abs/alg-geom/9505010 | |
| dc.identifier | http://arxiv.org/abs/alg-geom/9505010 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/150026 | |
| dc.subject | Algebraic Geometry | |
| dc.title | Algebraic Barth-Lefschetz theorems | |
| dc.type | text |