Séminaires : Séminaire Théorie des Nombres

 Equipe(s) : fa, tn, tga, Responsables : Marc Hindry, Bruno Kahn, Wieslawa Niziol, Cathy Swaenepoel Email des responsables : cathy.swaenepoel@imj-prg.fr Salle : Adresse : Description http://www.imj-prg.fr/tn/STN/stnj.html

 Orateur(s) E. Ghate - , Titre On the local semi-simplicity of ordinary modular Galois representations Date 05/04/2004 Horaire 14:00 à 16:00 Diffusion Résume Let $f$ be a $p$-ordinary primitive cusp form of weight at least 2. Then the restriction to a decomposition group at $p$ of the two dimensional $p$-adic Galois representation attached to $f$ is upper-triangular. When $f$ has complex multiplication it is not hard to see that it is even diagonal. In this talk we will provide some evidence which shows that the converse also holds. This is joint work with Vinayak Vatsal. Salle Adresse