4 mai 2021

Johannes Anschütz (Université de Bonn)
Extending all torsor on the punctured Spec A_inf

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Lieu : Séminaire en ligne

Résumé : In this talk I want to present some key aspects of the proof that torsors
under parahoric group schemes on the punctured spectrum of Fontaine’s
ring A_inf extend to the whole spectrum. To motivate this question an
application to the v-stack of G-isocrystals on perfect rings will be given.

Extending all torsor on the punctured Spec A_inf  Version PDF