Nori fundamental gerbe of essentially finite covers and Galois closure of towers of torsors

 

שמור ב:
מידע ביבליוגרפי
Autores: Antei, Marco, Biswas, Indranil, Emsalem, Michel, Tonini, Fabio, Zhang, Lei
פורמט: artículo original
Fecha de Publicación:2019
תיאור: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 X over a field k. This is done by describing the Nori fundamental gerbe of an essentially finite cover of X. A similar result is also obtained for the S -fundamental gerbe.
País:Kérwá
מוסד:Universidad de Costa Rica
Repositorio:Kérwá
שפה:Inglés
OAI Identifier:oai:kerwa.ucr.ac.cr:10669/79845.2
גישה מקוונת:https://link.springer.com/article/10.1007/s00029-019-0449-z
https://hdl.handle.net/10669/79845.2
מילת מפתח:Nori fundamental gerbe
Essentially finite bundle
Essentially finite cover
Algebraic stack

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