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Variétés rationnelles

Horaires : Le vendredi 09 octobre 2015, 16h30-17h30

Lieu : ENS, salle W

Failures of weak approximation in families.

Martin Bright (Leiden)

Given a family of varieties over a number field, we investigate the variation of the Brauer-Manin obstruction within the family. We give sufficient conditions on a family of varieties over P^n for 100% of the family to have a Brauer-Manin obstruction to weak approximation (this is joint work with Tim Browning and Dan Loughran).

 

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