Date: April 18     Time: 14:00-16:00    Venue: Room 29, Quan Zhai, BICMR

Date: April 23, April 26    Time: 14:00-16:00    Venue: Room 77201, Jingchunyuan 78, BICMR

The Manin-Mumford conjecture describes the distribution of torsion points on subvarieties of abelian varieties. It was proven by Raynaud, and more precise versions were given later by Coleman, Buium and others. I will describe these classical works and explain how some fine properties of the l-adic representations associated to the torsion of abelian varieties can be used to give uniform bounds in the Manin-Mumford problem. I will finally discuss effective results on the distribution of special points on powers of modular curves.