22 citations · 52 across the 7 of their papers we have counts for
7 papers
Cycle caractéristique sur une puissance symétrique d'une courbe et déterminant de la cohomologie étale
Fabrice Orgogozo, Joël Riou
Relying on the formalism developed by Alexander Beilinson and Takeshi Saito, we compute the characteristic cycle of an external symmetric power of a tame étale sheaf on a curve. Th…
Constructibilité et modération uniformes en cohomologie étale
Fabrice Orgogozo
Let S be a Noetherian scheme and f:X -> S a proper morphism. By SGA 4 XIV, for any constructible sheaf F of Z/nZ-modules on X, the sheaves of Z/nZ-modules R^if_*F obtained by direc…
Calculabilité de la cohomologie étale modulo l
David A. Madore, Fabrice Orgogozo
Let be an algebraic scheme over an algebraically closed field and a prime number invertible on . According to classical results (due essentially to A. Grothendieck, M…
Travaux de Gabber sur l'uniformisation locale et la cohomologie etale des schemas quasi-excellents. Seminaire a l'Ecole polytechnique 2006--2008
Luc Illusie, Yves Laszlo, Fabrice Orgogozo
This book contains notes of a seminar on Ofer Gabber's work on the etale cohomology and uniformization of quasi-excellent schemes. His main results include (cf. introduction) const…
Sur la p-dimension des corps
Ofer Gabber, Fabrice Orgogozo
Let A be an excellent integral henselian local noetherian ring, k its residue field of characteristic p>0 and K its fraction field. Using an algebraization technique introduced by…
Modifications et cycles évanescents sur une base de dimension supérieure à un
Fabrice Orgogozo
For a given morphism of schemes f:X->S, a sheaf F on X, a geometric point x on X, and s=f(x), the morphism f\_x : X(x) -> S(s) between the strict henselizations doesn't necessarily…