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NAG

Seminar

Brauer-Manin obstructions for sections of the fundamental group

Stix, J (Heidelberg)
Thursday 27 August 2009, 11:00-12:00

Seminar Room 1, Newton Institute

Abstract

We introduce the notion of a Brauer-Manin obstruction for sections of the fundamental group extension of varieties over number fields. This obstruction is then shown in an example to yield a proof for the absence of sections.

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