by Jean Bourgain . par Zoghman Mebkhout . by Gopal Prasad . by Armand Borel and Gopal Prasad . by James A. Carlson and Domingo Toledo . by Michael Benedicks and Michal Misiurewicz . by Elmar Vogt . par Nicholas M. Katz et Gérard LaumonInstitut des hautes études scientifiques1989