Automorphism groups of Koras-Russell threefolds of the second kind
| Affiliation auteurs | Affiliation ok |
| Titre | Automorphism groups of Koras-Russell threefolds of the second kind |
| Type de publication | Journal Article |
| Year of Publication | 2016 |
| Auteurs | Petitjean C |
| Journal | BEITRAGE ZUR ALGEBRA UND GEOMETRIE-CONTRIBUTIONS TO ALGEBRA AND GEOMETRY |
| Volume | 57 |
| Pagination | 599-605 |
| Date Published | SEP |
| Type of Article | Article |
| ISSN | 0138-4821 |
| Mots-clés | Automorphism groups of affine varieties, Koras-Russell threefolds |
| Résumé | We determine the automorphism groups of Koras-Russell threefolds of the second kind. In particular we show that these groups are semi-direct products of two subgroups, one given by the multiplicative group and the other isomorphic to a polynomial ring in two variables with the addition law. We also show that these groups are generated by algebraic subgroups isomorphic to G(m) and G(a). |
| DOI | 10.1007/s13366-016-0282-x |