等变Brauer群研究的新进展
Recent advances in the study of the Equivariant Brauer Group
摘要:
在本文中,我们概述了一个最近的建设的陈-韦伊同构的等变Brauer群的$\mathbb R^n$行动的主环面丛,这个同构的目标是一个“降维”的\vCech上同调群。使用后一组,我们演示了如何扩展诱导代数的建设代数与非平凡的束作为他们的频谱。
英文摘要:
In this paper we outline a recent construction of a Chern-Weil isomorphism for the equivariant Brauer group of $\mathbb R^n$ actions on a principal torus bundle, where the target for this isomorphism is a "dimensionally reduced" \vCech cohomology group. Using this latter group, we demonstrate how to extend the induced algebra construction to algebras with a non-trivial bundle as their spectrum.
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