Déformations équivariantes des courbes stables I : Étude cohomologique
| dc.creator | Maugeais, Sylvain | |
| dc.date | 2003-10-09 | |
| dc.date.accessioned | 2026-07-07T05:01:46Z | |
| dc.date.available | 2026-07-07T05:01:46Z | |
| dc.description | Let $k$ be a field, $C\to \Spec k$ be a stable curve and let $G$ be a finite group acting faithfully on the curve $C\to \Spec k$. In this article, we compute the vector space $\Ext^1_G(Ω_{C/k}, Ø_C)$, the sheaf $Ω_{C/k}$ being the sheaf of relative differentials. This vector space is naturally isomorphic to the set of first order $G$-equivariant deformations of $C$. The computation we do here will be used in a future article. | |
| dc.description | 31 pages, french | |
| dc.identifier | https://arxiv.org/abs/math/0310137 | |
| dc.identifier | http://arxiv.org/abs/math/0310137 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/68799 | |
| dc.subject | Algebraic Geometry | |
| dc.subject | Number Theory | |
| dc.subject | 14H30 | |
| dc.title | Déformations équivariantes des courbes stables I : Étude cohomologique | |
| dc.type | text |