The bigger Brauer group and twisted sheaves - Mathematics > Algebraic GeometryReport as inadecuate




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Abstract: Given an algebraic stack with quasiaffine diagonal, we show that eachG m-gerbe comes from a central separable algebra. In other words, Taylor-sbigger Brauer group equals the etale cohomology in degree two with coefficientsin G m. This gives new results also for schemes. We use the method of twistedsheaves explored by de Jong and Lieblich.



Author: Jochen Heinloth, Stefan Schroeer

Source: https://arxiv.org/







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