Flexible bundles over rigid affine surfaces
| Affiliation auteurs | !!!! Error affiliation !!!! |
| Titre | Flexible bundles over rigid affine surfaces |
| Type de publication | Journal Article |
| Year of Publication | 2015 |
| Auteurs | Dubouloz A |
| Journal | COMMENTARII MATHEMATICI HELVETICI |
| Volume | 90 |
| Pagination | 121-137 |
| Type of Article | Article |
| ISSN | 0010-2571 |
| Mots-clés | Makar-Limanov invariant, rational surfaces, Rigid and flexible varieties, stable rigidity |
| Résumé | We construct a smooth rational affine surface S with finite automorphism group but with the property that the group of automorphisms of the cylinder S x A(2) acts infinitely transitively on the complement of a closed subset of codimension at least two. Such a surface S is in particular rigid but not stably rigid with respect to the Makar-Limanov invariant. |
| DOI | 10.4171/CMH/348 |