Add to ORKGWe give necessary and sufficient conditions for a finite morphism of schemes of characteristic p > 0 to be dominated by a torsor under a finite group scheme. We show that schemes satisfying this property constitute the category of covers for the fundamental group scheme
Let X be any scheme defined over a Dedekind scheme S with a given section x ∈ X (S). We prove the ex...
Let $X$ be a fine and saturated log scheme, and let $G$ be a commutative finite flat group scheme ov...
Let X/S be a quasi-projective morphism over an affine base. We develop in this article a technique f...
We give necessary and sufficient conditions for a finite flat morphism of schemes of character-istic...
We show that a tower of torsors under affine group schemes can be dominated by a torsor. Moreover, i...
We show that a tower of torsors under affine group schemes can be dominated by a torsor. Moreover, i...
We show that a tower of torsors under affine group schemes can be dominated by a torsor. Moreover, i...
in French, 19 pages. Minor modificationsLet $S$ be a Dedekind scheme, $X$ a $S$-scheme of finite typ...
Let X be a projective, connected and smooth scheme defined over an algebraically closed field k. In ...
We prove the existence of a Galois closure for towers of torsors under finite group schemes over a p...
En aquest treball presentem la construcció del grup fonamental étale per esquemes connexos. Usant el...
This is the author accepted manuscript. The final version is available from Project Euclid via the U...
Let X be any scheme defined over a Dedekind scheme S with a given section x ∈ X(S). We prove the exi...
Suppose that $O=\Bbb F_q[\pi ]$ is a polynomial ring and $R$ is a commutative unitary $O$-algebra. T...
Let R be a complete dvr with perfect residue field k of characteristic p > 0. Let {G(lambda))lambda ...
Let X be any scheme defined over a Dedekind scheme S with a given section x ∈ X (S). We prove the ex...
Let $X$ be a fine and saturated log scheme, and let $G$ be a commutative finite flat group scheme ov...
Let X/S be a quasi-projective morphism over an affine base. We develop in this article a technique f...
We give necessary and sufficient conditions for a finite flat morphism of schemes of character-istic...
We show that a tower of torsors under affine group schemes can be dominated by a torsor. Moreover, i...
We show that a tower of torsors under affine group schemes can be dominated by a torsor. Moreover, i...
We show that a tower of torsors under affine group schemes can be dominated by a torsor. Moreover, i...
in French, 19 pages. Minor modificationsLet $S$ be a Dedekind scheme, $X$ a $S$-scheme of finite typ...
Let X be a projective, connected and smooth scheme defined over an algebraically closed field k. In ...
We prove the existence of a Galois closure for towers of torsors under finite group schemes over a p...
En aquest treball presentem la construcció del grup fonamental étale per esquemes connexos. Usant el...
This is the author accepted manuscript. The final version is available from Project Euclid via the U...
Let X be any scheme defined over a Dedekind scheme S with a given section x ∈ X(S). We prove the exi...
Suppose that $O=\Bbb F_q[\pi ]$ is a polynomial ring and $R$ is a commutative unitary $O$-algebra. T...
Let R be a complete dvr with perfect residue field k of characteristic p > 0. Let {G(lambda))lambda ...
Let X be any scheme defined over a Dedekind scheme S with a given section x ∈ X (S). We prove the ex...
Let $X$ be a fine and saturated log scheme, and let $G$ be a commutative finite flat group scheme ov...
Let X/S be a quasi-projective morphism over an affine base. We develop in this article a technique f...