Cartan subalgebras in C*-algebras of Hausdorff etale groupoids

Jonathan H. Brown, Gabriel Nagy, Sarah Reznikoff +2

The reduced $C^{\ast }$-algebra of the interior of the isotropy in any Hausdorff étale groupoid $G$ embeds as a $C^{\ast }$-subalgebra $M$ of the reduced $C^{\ast }$-algebra of $G$. We prove that th…