Time: 14:00-15:45, Wednesday, June 4 2025
Venue：TBD
Speaker: Philippe Gille, Institut Camille Jordan (Lyon)
Biography: Philippe Gille is now a senior CNRS researcher at Institut Camille Jordan (Lyon). He obtained his PhD in Mathematics from the University of Orsay in 1994. He was awarded the G. de B. Robinson Award in 2015 for the paper "Octonions algebras over rings are not determined by their norms" published in the Canadian Bulletin of Mathematics.
Title：Loop torsors and local-global principles
Abstract: Loop torsors arise from finite abelian subgroups of algebraic groups and are of special interest over Laurent polynomial rings and over localizations of a henselian regular ring. In a joint work with Parimala, we use this topic to investigate local-global principles for torsors over a semi-global field.
