Marco Antei

activity

20082018

most citedNori fundamental gerbe of essentially finite covers and Galois closure of towers of torsors

2 citations · 8 across the 12 of their papers we have counts for

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Showing 2009 · math.AGShow all

2 papers · 2 filters

math.AG2009

On the Abelian Fundamental Group Scheme of a Family of Varities

Marco Antei

Let $S$ be a connected Dedekind scheme and $X$ an $S$ -scheme provided with a section $x$ . We prove that the morphism of fundamental group schemes $π_1(X,x)^{ab}\to π_1(\mathbf{Alb}…

math.AG2009

Galois Closure of Essentially Finite Morphisms

Marco Antei, Michel Emsalem

Let $X$ be a reduced connected $k$ -scheme pointed at a rational point $x \in X (k)$ . By using tannakian techniques we construct the Galois closure of an essentially finite $k$ -morph…