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Nori fundamental gerbe of essentially finite covers and Galois closure of towers of torsors
dc.creator | Antei, Marco | |
dc.creator | Biswas, Indranil | |
dc.creator | Emsalem, Michel | |
dc.creator | Tonini, Fabio | |
dc.creator | Zhang, Lei | |
dc.date.accessioned | 2021-11-25T20:58:30Z | |
dc.date.available | 2019-11-14T15:00:58Z | |
dc.date.available | 2021-11-25T20:58:30Z | |
dc.date.issued | 2019 | |
dc.identifier.citation | https://link.springer.com/article/10.1007/s00029-019-0449-z | |
dc.identifier.issn | 1022-1824 | |
dc.identifier.issn | 1420-9020 | |
dc.identifier.uri | https://hdl.handle.net/10669/79845.2 | |
dc.description.abstract | 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. | es_ES |
dc.description.sponsorship | University of Hong Kong/[4053343]/HKU/China | es_ES |
dc.description.sponsorship | Labex CEMPI/[ANR-11-LABX-01]/CEMPI/Francia | es_ES |
dc.description.sponsorship | Universidad de Costa Rica/[820-B7-185]/UCR/Costa Rica | |
dc.language.iso | eng | es_ES |
dc.relation.ispartof | ||
dc.source | Selecta Mathematica, vol.25(18), pp.1-37 | es_ES |
dc.subject | Nori fundamental gerbe | es_ES |
dc.subject | Essentially finite bundle | es_ES |
dc.subject | Essentially finite cover | es_ES |
dc.subject | Algebraic stack | es_ES |
dc.title | Nori fundamental gerbe of essentially finite covers and Galois closure of towers of torsors | es_ES |
dc.type | artículo original | |
dc.date.updated | 2019-11-13T16:14:06Z | |
dc.identifier.doi | 10.1007/s00029-019-0449-z | |
dc.description.procedence | UCR::Vicerrectoría de Docencia::Ciencias Básicas::Facultad de Ciencias::Escuela de Matemática | es_ES |
dc.description.procedence | UCR::Vicerrectoría de Investigación::Unidades de Investigación::Ciencias Básicas::Centro de Investigaciones en Matemáticas Puras y Aplicadas (CIMPA) | es_ES |
dc.identifier.codproyecto | 820-B7-185 |
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