Workshop on Deformation of Galois Covers


Monday 14th January

  9:30 -- 10:00  coffee
10:00 -- 11:00  M. Raynaud, Variation du groupe fondamental des courbes propres en caractéristique p>0. Abstract
11:30 -- 12:30  C. Gasbarri, Intrinsic heights of vector bundles and representations of the fundamental group scheme of an arithmetic surface.  Abstract

15:00 -- 16:00  N. Suwa, Kummer-Artin-Schreier-Witt theory and Cartier theory. Abstract
16:00 -- 17:00  coffee
17:00 -- 18:00  T. Sekiguchi, An attempt to compactify the unified Kummer-Artin-Schreier-Witt theory. Abstract

Tuesday 15th January

  9:30 -- 10:00  coffee
10:00 -- 11:00  S. Wewers, Deformation of curves with group scheme action. Abstract
11:30 -- 12:30  M. Romagny, Reduction of the group of a (wildly ramified) Galois cover, and application to moduli. Abstract

15:00 -- 16:00  S. Maugeais, Déformation équivariante et courbes hyperelliptiques. Abstract
16:00 -- 16:30  coffee
16:30 -- 17:30  I. Bouw, Reduction of the Hurwitz space of metacyclic covers. Abstract
18:00 -- 19:00  C. Lehr, Reduction of Curves and an Analog to a Theorem of Deuring. Abstract
19:30 --             Reception

Wednesday 16th January

  9:30 -- 10:00  coffee
10:00 -- 11:00  E. Riboulet, Computation of some moduli spaces of covers and explicit S_n and A_n regular Q(T) extensions with totally real fibers.  Abstract
11:30 -- 12:30  A. Mézard, Changement de base dans les familles de revêtements de courbes.  Abstract

14:00 -- 15:00  N. Borne, Cohomologie des G-faisceaux en caractéristique positive.   Abstract
15:00 -- 15:30  coffee
15:30 -- 16:30  G. Pagot, F_p-espaces vectoriels de formes différentielles logarithmiques et relèvement d'actions de (Z/pZ)^n.   Abstract