Topological boundaries of covariant representations

Massoud Amini, Sajad Zavar

We associate a boundary ${\mathcal{B}}_{\pi ,u}$ to each covariant representation $(\pi ,u,H)$ of $C^{\ast }$-dynamical system $(G,A,\alpha )$ and study the action of $G$ on ${\mathcal{B}}_{\pi ,u}$ and its…