arXiv:1012.1765 [math.AG]AbstractReferencesReviewsResources
Descent theory for open varieties
David Harari, Alexei N. Skorobogatov
Published 2010-12-08Version 1
We extend the descent theory of Colliot-Th\'el\`ene and Sansuc to arbitrary smooth algebraic varieties by removing the condition that every invertible regular function is constant. This links the Brauer--Manin obstruction for integral points on arithmetic schemes to the obstructions defined by torsors under groups of multiplicative type.
Comments: 28 pages
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