On Unramified Brauer Groups of Torsors over Tori

On Unramified Brauer Groups of Torsors over Tori cover
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Abstract

In this paper we introduce a method to obtain algebraic information using arithmetic one in the study of tori and their principal homogeneous spaces. In particular, using some results of the authors with Ting-Yu Lee, we determine the unramified Brauer groups of some norm one tori, and their torsors.

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Eva Bayer-Fluckiger, Raman Parimala, On Unramified Brauer Groups of Torsors over Tori. Doc. Math. 25 (2020), pp. 1263–1284

DOI 10.4171/DM/776