2 citations · 4 across the 5 of their papers we have counts for
7 papers
Nori fundamental gerbe of essentially finite covers and Galois closure of towers of torsors
M. Antei, I. Biswas, M. Emsalem +2
We prove the existence of a Galois closure for towers of torsors under finite group schemes over a proper, geometrically connected and geometrically reduced algebraic stack ove…
Towers of torsors over a field
Marco Antei, Indranil Biswas, Michel Emsalem
Let be a projective, connected and smooth scheme defined over an algebraically closed field . In this paper we prove that a tower of finite torsors (i.e., under the action o…
Models of torsors and the fundamental group scheme
Marco Antei, Michel Emsalem
Given a relative faithfully flat pointed scheme over the spectrum of a discrete valuation ring this paper is motivated by the study of the natural morphism from the funda…
Twisting by a torsor
Michel Emsalem
Twisting by a G-torsor an object endowed with an action of a group G is a classical tool. For instance one finds in the paragraph 5.3 of the book "cohomologie galoisienne" by Serre…
Lifting Galois sections along torsors
Niels Borne, Michel Emsalem, Jakob Stix
The cuspidalization conjecture, which is a consequence of Grothendieck's section conjecture, asserts that for any smooth hyperbolic curve over a finitely generated field of…
Galois Closure of Essentially Finite Morphisms
Marco Antei, Michel Emsalem
Let be a reduced connected -scheme pointed at a rational point . By using tannakian techniques we construct the Galois closure of an essentially finite -morph…