Geoff Goehle

collaborators

4 papers

math.OA2012

Groupoid C*-algebras with Hausdorff Spectrum

Geoff Goehle

Suppose $G$ is a second countable, locally compact Hausdorff groupoid with abelian stabilizer subgroups and a Haar system. We provide necessary and sufficient conditions for the gr…

math.OA2012

Groupoid equivalence and the associated iterated crossed product

Jonathan Henry Brown, Geoff Goehle, Dana P. Williams

Given groupoids $G$ and $H$ and a $(G, H)$ -equivalence $X$ we may form the transformation groupoid $G ⋉ X ⋊ H$ . Given a separable groupoid dynamical system $(A,G\ltimes X\…

math.OA2009

Locally Unitary Groupoid Crossed Products

Geoff Goehle

We define the notion of a principal S-bundle where S is a groupoid group bundle and show that there is a one-to-one correspondence between principal S-bundles and elements of a she…

math.OA2009

The Mackey Machine for Crossed Products by Regular Groupoids. II

Geoff Goehle

We prove that given a regular groupoid $G$ whose isotropy subgroupoid $S$ has a Haar system, along with a dynamical system $(A, G, α)$ , there is an action of $G$ on the spectrum of $…