The Defect of Weak Approximation for Homogeneous Spaces
نویسنده
چکیده
Let X = H\G be a homogeneous space defined over a number field k, where G is a connected linear k-group satisfying certain conditions, and H is a connected k-subgroup of G. For a finite set S of places of k we define a finite abelian group AS(X) which is the defect of weak approximation for X with respect to S. We describe AS(X) in terms of the Brauer group of X.
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تاریخ انتشار 2006