On Hausdorff covers for non-Hausdorff groupoids (Part II)

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• Julian Gonzales (University of Glasgow)
• Friday 04 July 2025, 14:30-15:00
• External.

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TGAW01 - Crossed products and groupoid C*-algebras

Non-Hausdorff groupoids arise naturally in many contexts, however, key tools from the study of Hausdorff groupoids are not always applicable. This talk looks at a Hausdorff cover introduced by Timmermann and describes how it can be used to avoid certain technical difficulties encountered in the study of non-Hausdorff étale groupoids and their C*-algebras. As an application, we will see how questions regarding amenability are reduced to the Hausdorff setting. This is based on joint work with K. A. Brix, J. B. Hume and X. Li.

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

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