Listar Matemática por autor "3a5f0dba-3978-49ac-a96c-b0e94f6f63ed"
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Nori fundamental gerbe of essentially finite covers and Galois closure of towers of torsors
Antei, Marco; Biswas, Indranil; Emsalem, Michel; Tonini, Fabio; Zhang, Lei (2019)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 ...