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UID:node-3134504@mathematics.huji.ac.il
DTSTAMP:20221205T123000Z
DTSTART:20221205T123000Z
DTEND:20221205T140000Z
SUMMARY:HUJI NT Seminar - Kęstutis Česnavičius
DESCRIPTION:Title: Torsors on the complement of a smooth divisor and the affine Grassmannian\n\nAbstract: A conjecture of Nisnevich predicts that for a smooth variety X over a field, a smooth divisor D\n\nin X, and a totally isotropic reductive X-group scheme G, every generically trivial G-torsor on\n\nX \ D trivializes Zariski locally on X. I will discuss this conjecture and related questions about\n\ntorsors under reductive groups over regular rings, as well as intervening independent questions\n\nabout the affine Grassmannian being the presheaf quotient of the loop group by the positive loop\n\nsubgroup.
LOCATION:The link will be sent to you after registration
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