Topological structure of the Mackey machine for étale groupoids

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• Sergey Neshveyev (University of Oslo)
• Wednesday 16 July 2025, 15:25-15:45
• External.

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TGAW02 - C*-algebras: classification and dynamical constructions

Given an amenable second countable Hausdorff locally compact étale groupoid $\mathcal G$, it is known that every primitive ideal of the corresponding C$^{$-algebra is induced from an isotropy group. For certain classes of groupoids, we refine this result by describing the Jacobson topology on such induced ideals, thus obtaining a description of the ideal structure of $C}(\mathcal G)$. (Joint work with Johannes Christensen.)

This talk is part of the Isaac Newton Institute Seminar Series series.

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