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On the discriminant of twisted tensor products

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arxiv 1606.03105 v2 pith:UDYEMJ4M submitted 2016-06-09 math.RA

Jason Gaddis , Ellen Kirkman , W. Frank Moore This is my paper · ORCID
classification math.RA
keywords formulascasediscriminantextensionsproductstensortwistedalgebras
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We provide formulas for computing the discriminant of noncommutative algebras over central subalgebras in the case of Ore extensions and skew group extensions. The formulas follow from a more general result regarding the discriminants of certain twisted tensor products. We employ our formulas to compute automorphism groups for examples in each case.

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