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Conference Papers Year : 2020

The C*-algebra of a twisted groupoid extension


This written version of a talk given in July 2020 at the Western Sydney Abend seminar and based on the joint work [6] gives a decomposition of the C*-algebra of a locally compact groupoid with Haar system, possibly endowed with a twist, in presence of a normal subgroupoid. The natural expression of this result uses Fell bundles over groupoids. When the normal subgroupoid and the twist over it are abelian, one obtains another twisted groupoid C*-algebra.
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hal-03116954 , version 1 (20-01-2021)


  • HAL Id : hal-03116954 , version 1


Jean N Renault. The C*-algebra of a twisted groupoid extension. Western Sydney Abend Seminar, Jul 2020, Sydney, Australia. ⟨hal-03116954⟩
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