An equivariant pullback structure of trimmable graph C*-algebras

Francesca Arici, Francesco D'Andrea, Piotr M. Hajac +1

We prove that the graph C*-algebra $C^{\ast }(E)$ of a trimmable graph $E$ is $U(1)$-equivariantly isomorphic to a pullback C*-algebra of a subgraph C*-algebra $C^{\ast }(E^{\prime \prime })$ and the C*-alge…