We present a uniqueness theorem for the reduced C*-algebra of a twist E over a Hausdorff
étale groupoid G. We show that the interior IE of the isotropy of E is a twist over the interior IG …

Given a normal subgroup bundle A of the isotropy bundle of a groupoid Σ, we obtain a
twisted action of the quotient groupoid Σ/A on the bundle of group C⁎-algebras determined …

When the reduced twisted-algebra of a non-principal groupoid admits a Cartan subalgebra,
Renault's work on Cartan subalgebras implies the existence of another groupoid description …

In this paper, we initiate the study of higher rank Baumslag-Solitar semigroups and their
related C*-algebras. We focus on two extreme, but interesting, classes-one is related to …

We characterise when a smooth structure on the unit space of a Hausdorff\'etale groupoid
can be extended to a Lie-groupoid structure on the whole groupoid. We introduce Lie twists …

This paper explores the tension between multiple models and rigidity for groupoid $ C^* $-
algebras. We begin by identifying $\Gamma $-Cartan subalgebras $ D $ inside twisted …

Let $\Sigma\rightarrow G $ be a twist over a locally compact Hausdorff\'{e} tale groupoid $ G
$. Given $ f $ in the reduced C $^* $-algebra $ C_r^*(\Sigma; G) $ with open support …

We define and study the external and the internal Zappa-Sz\'{e} p product of twists over
groupoids. We determine when a pair $(\Sigma_ {1},\Sigma_ {2}) $ of twists over a matched …

A twist over a minimal étale groupoid that is topologically nontrivial over the interior of the
isotropy Page 1 A TWIST OVER A MINIMAL ÉTALE GROUPOID THAT IS TOPOLOGICALLY …

Well-known work of Renault shows that if $\mathcal {E} $ is a twist over a second countable,
effective,\'etale groupoid $ G $, then there is a naturally associated Cartan subalgebra of the …