Séminaire Arithmétique et Géométrie Algébrique
Jordan properties of automorphism groups of complex algebraic varieties
03
déc. 2024
déc. 2024
| Intervenant : | Yuri Zarhin |
| Institution : | Pennsylvania State University |
| Heure : | 14h00 - 15h00 |
| Lieu : | 3L15 |
A classical theorem of Jordan asserts that each finite subgroup of the complex general linear group GL(n) is ``almost commutative": it contains a commutative normal subgroup with index bounded by a universal constant that depends only on n.
We discuss an analogue of this property for the groups of birational (and biregular) automorphisms of complex algebraic varieties.
This is a report on a joint work with Tatiana Bandman (Bar-Ilan).