Seminar by De-Qi Zhang (National University of Singapore)

[Fabio Perroni]

UNIVERSITA’ DEGLI STUDI DI TRIESTE
DIPARTIMENTO DI MATEMATICA E GEOSCIENZE

SEMINAR ANNOUNCEMENT

Wednesday, December 11th, 2019, at 14:00.

Prof. De-Qi Zhang (National University of Singapore) will speak on "Jordan property for automorphism groups of projective varieties.”.

Abstract. A century ago, Camille Jordan proved that the complex general linear group GL_n(C) has the Jordan property: there is a Jordan constant C_n such that every finite subgroup H < GL_n(C) has an abelian subgroup H1 of index [H:H1] < C_n. 
We show that every connected algebraic group G (which is not necessarily linear) has the Jordan property with the Jordan constant depending only on dim G, and that the full automorphism group Aut(X) of every projective variety X has the Jordan property.
We will also mention recent results on the Jordan property of birational groups of algebraic varieties and automorphism groups of complex manifolds.

Venue: Lecture Room 5A  (Sezione di Matematica e Informatica, H2 building, Via Valerio 12/1, 5th floor).

Everybody interested is much welcome to attend.
Best regards,
Fabio Perroni