On Hausdorff covers for non-Hausdorff groupoids

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• Xin Li (University of Glasgow)
• Friday 04 July 2025, 11:00-11:20
• External.

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TGAW01 - Crossed products and groupoid C*-algebras

Many important examples of C-algebras are constructed from topological groupoids, which arise naturally in a variety of areas such as dynamics, topology, geometry and group theory. While a satisfactory theory of groupoid C-algebras has been developed for groupoids which are Hausdorff, mysterious phenomena and new challenges arise in the setting of non-Hausdorff groupoids. This talk is about a new approach to non-Hausdorff groupoids and their algebras based on Timmermann’s construction of Hausdorff covers (joint work with Brix, Gonzales and Hume).

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

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