2 problems

Let $G$ be a nontrivial compact group acting freely on a unital $C^*$-algebra $A$. Define the join … Equip $A\circledast C(G)$ with the diagonal action of $G$. Type 1 noncommutativ…

Let $A$ be a unital $C^*$-algebra with a free action of $\mathbb{Z}/2\mathbb{Z}$. Its unreduced suspension is … The action extends to $\Sigma A$ by…