A twist over a minimal étale groupoid that is topologically nontrivial over the interior of the isotropy

Abstract

We present an example of a twist over a minimal Hausdorff étale groupoid such that the restriction of the twist to the interior of the isotropy is not topologically trivial; that is, the restricted twist is not induced by a continuous 2-cocycle.

arXiv commentThis version matches the version in the Proceedings of the American Mathematical Society. 15 pages

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