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arXiv · 1006.5128

Groupoid Quantales: a non étale setting

Alessandra Palmigiano·Riccardo Re
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Abstract

It is well known that if G is an étale topological groupoid then its topology can be recovered as the sup-lattice generated by G-sets, i.e. by the images of local bisections. This topology has a natural structure of unital involutive quantale. We present the analogous construction for any non étale groupoid with sober unit space G_0. We associate a canonical unital involutive quantale with any inverse semigroup of G-sets which is also a sheaf over G_0. We introduce axiomatically the class of quantales so obtained, and revert the construction mentioned above by proving a representability theorem for this class of quantales, under a natural spatiality condition.

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Alessandra Palmigiano, Riccardo Re. 2010-06-26. Groupoid Quantales: a non étale setting. https://arxiv.org/abs/1006.5128

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