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The equivariant Brauer groups of commuting free and proper actions are isomorphic

Alexander Kumjian·Iain Raeburn·Dana P. Williams
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Abstract

If $X$ is a locally compact space which admits commuting free and proper actions of locally compact groups $G$ and $H$, then the Brauer groups $\Br_H(G/X)$ and $\Br_G(X/H)$ are naturally isomorphic.

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Alexander Kumjian, Iain Raeburn, Dana P. Williams. 1994-09-27. The equivariant Brauer groups of commuting free and proper actions are isomorphic. https://arxiv.org/abs/funct-an/9409004

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