Caractérisation par l'uniformité des fibres universels sur la Grassmanienne.
Cartier-Dieudonné theory for Chow groups.
Cohomologial dimension of Laumon 1-motives up to isogenies
We prove that the category of Laumon 1-motives up to isogenies over a field of characteristic zero is of cohomological dimension . As a consequence this implies the same result for the category of formal Hodge structures of level (over ).
Cycles évanescents et faisceaux pervers : cas des courbes planes irréductibles