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Kęstutis Česnavičius: Grothendieck–Serre in the quasi-split unramified case

Time: Thu 2021-12-09 15.30 - 16.30

Location: Institut Mittag-Leffler, Seminar Hall Kuskvillan (alt. Zoom, meeting ID: 921 756 1880)

Lecturer: Kęstutis Česnavičius (Université Paris-Saclay)

Abstract: The Grothendieck–Serre conjecture predicts that every generically trivial torsor under a reductive group scheme G over a regular local ring R is trivial. We will explain how to settle it in the case when G is quasi-split and R is unramified.