| HAL : hal-00001286, version 1 |
| arXiv : math.AG/0403215 |
| Fiche détaillée | Récupérer au format |
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| Locally nilpotent derivations on affine surfaces with a $\C^*$-action |
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| Hubert Flenner 1Mikhail Zaidenberg 2 |
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| (12/03/2004) |
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| We give a classification of normal affine surfaces admitting an algebraic group action with an open orbit. In particular an explicit algebraic description of the affine coordinate rings and the defining equations of such varieties is given. By our methods we recover many known results, e.g. the classification of normal affine surfaces with a `big' open orbit of Gizatullin and Popov or some of the classification results of Danilov-Gizatullin, Bertin and others. |
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| 1 : | Fakultät für Mathematik (Fakultät für Mathematik) |
| Ruhr-Universität Bochum | |
| 2 : | Institut Fourier (IF) |
| CNRS : UMR5582 – Université Joseph Fourier - Grenoble I | |
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| Domaine | : | Mathématiques/Géométrie algébrique |
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| $\C^*$-action – $\C_+$-action – graded algebra – affine surface – cyclic quotient singularity |
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| Liste des fichiers attachés à ce document : | ||||||||||
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| hal-00001286, version 1 | |
| http://hal.archives-ouvertes.fr/hal-00001286 | |
| oai:hal.archives-ouvertes.fr:hal-00001286 | |
| Contributeur : Mikhail Zaidenberg | |
| Soumis le : Vendredi 12 Mars 2004, 18:39:41 | |
| Dernière modification le : Vendredi 12 Mars 2004, 20:33:57 | |