Iterating the algebraic étale-Brauer obstruction

Francesca Balestrieri (Oxford)

A question by Poonen asks whether iterating the étale-Brauer set gives a finer obstruction set. We tackle the algebraic version of Poonen's question: we iterate the algebraic étale-Brauer obstruction and show that, in many cases, iteration doesn't yield any new information (as the set that we obtain is precisely the algebraic étale-Brauer set).

Tuesday, November 17th, at 4:00pm in HBH 227

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