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Showing 1 to 4 of 4 for “"brauer group"”.
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The Schur Subgroup of The Brauer Group
Made available in DSpace on 2014-12-14T13:09:26Z (GMT). No. of bitstreams: 1 7524379.pdf: 3475220 bytes, checksum: febfd64411d586ca56308400360efba9 (MD5) Previous issue date: 1975
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A Bayesian approach to computing Brauer groups of cubic surfaces
We present an algorithm for computing the Brauer groups of cubic surfaces. The algorithm takes as input an equation for a cubic surface X and a confidence threshold 0.5 < r < 1 and outputs a candidate for the Brauer group of X and a confidence level > r for the result. The algorithm runs by …
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Cohomologically proper stacks over Zp̳ : algebra, geometry and representation theory
… of the classifying stack of a reductive group, compute the ring of prismatic characteristic classes at non-torsion primes and give some new examples of the Hodge-to-de Rham degeneration for stacks in characteristic 0. We also study some descent properties of certain Brauer group classes …
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Moduli of twisted sheaves and generalized Azumaya algebras
… spaces to study a classical question about the Brauer group of a function field K, known as the "period-index problem": for which classes o in Br(K) of order n does there exist a division algebra D of rank n2 with [D] = [alpha]? We give an answer to this question when K is the function field of …