Zobrazeno 1 - 10
of 24
pro vyhledávání: '"Orgogozo, Fabrice"'
Autor:
Orgogozo, Fabrice, Riou, Joël
Relying on the formalism developed by Alexander Beilinson and Takeshi Saito, we compute the characteristic cycle of an external symmetric power of a tame \'etale sheaf on a curve. This generalizes a result of G\'erard Laumon in characteristic 0 and l
Externí odkaz:
http://arxiv.org/abs/2312.07776
Autor:
Orgogozo, Fabrice
Publikováno v:
Compositio Math. 155 (2019) 711-757
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 direct image (for the etale topology) are also constructible: there is a st
Externí odkaz:
http://arxiv.org/abs/1703.10850
Autor:
Orgogozo, Fabrice
Dans le premier chapitre, on démontre divers résultats sur le plus grand quotient du groupe fondamental étale premier aux caractéristiques, parmi lesquels la formule de Künneth et l'invariance par changement de corps séparablement clos pour les
Externí odkaz:
http://tel.archives-ouvertes.fr/tel-00004093
http://tel.archives-ouvertes.fr/docs/00/04/58/90/PDF/tel-00004093.pdf
http://tel.archives-ouvertes.fr/docs/00/04/58/90/PDF/tel-00004093.pdf
Autor:
Madore, David A., Orgogozo, Fabrice
Publikováno v:
Algebra Number Theory 9 (2015) 1647-1739
Let $X$ be an algebraic scheme over an algebraically closed field and $\ell$ a prime number invertible on $X$. According to classical results (due essentially to A. Grothendieck, M. Artin and P. Deligne), the \'etale cohomology groups $\mathrm{H}^i(X
Externí odkaz:
http://arxiv.org/abs/1304.5376
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) constructibility theorems (for abelian or non-abelian coefficients), vanish
Externí odkaz:
http://arxiv.org/abs/1207.3648
Autor:
Gabber, Ofer, Orgogozo, Fabrice
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 the first named author, and the one-dimension case already proved by K
Externí odkaz:
http://arxiv.org/abs/0706.0671
Autor:
Orgogozo, Fabrice
Publikováno v:
International Mathematics Research Notices 2006 (2006) Article ID 25315, 38 pages
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 behave (with respect to F) like a proper morphism. However, we know i
Externí odkaz:
http://arxiv.org/abs/math/0507475
Autor:
Orgogozo, Fabrice
In this paper, we prove that the conductor formula of Bloch implies the conjecture of Deligne on Milnor numbers of isolated singularities. In particular, thanks to the work of Bloch on his conjecture, our result implies that this so-called Deligne-Mi
Externí odkaz:
http://arxiv.org/abs/math/0210046
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Autor:
Orgogozo, Fabrice
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 direct image (for the etale topology) are also constructible: there is a st
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e7aeb06cbf5a6f040dcd08f882f18018