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Cossa xe... a Hopf-Galois extension?

Daan Van De Weem
Schedule: 
Friday, June 18, 2021 - 11:00 to 12:00
Location: 
Online
Abstract: 

A Hopf-Galois extension of an algebra is a dual notion to a principal bundle on a space. In this talk I will give an introduction to the theory by talking about what a Hopf algebra is, and also why Galois theory is not just about field extensions. The talk will mostly be (co)commutative, for those who aren't noncommutative geometers yet.

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