Lundi 12 Septembre 2011


16h45-17h45 T. Saito (Université de Tokyo)

Discriminant and determinant of a hypersurface of even dimension

The determinant of the cohomology of a smooth hypersurface of even dimension in a projective space defines a quadratic character of the absolute Galois group. The discriminant of a defining polynomial allows us to compute it once we determine the sign involved by testing the formula for the Fermat hypersurfaces. This is a joint work with J-P. Serre.


Les exposés auront lieu dans l'amphithéâtre Léon Motchane, IHÉS
Pour toute information, envoyer un message à abbes @ ihes.fr
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