Semicrossed products of simple C*-algebras
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Let $(\A, α)$ and $(\B, β)$ be C*-dynamical systems and assume that $\A$ is a separable simple C*-algebra and that $α$ and $β$ are *-automorphisms. Then the semicrossed products $\A \times_α \bbZ^{+}$ and $\B \times_β \bbZ^{+}$ are isometrically isomorphic if and only if the dynamical systems $(\A, α)$ and $(\B, β)$ are outer conjugate.
12 pages, accepted for publication in Math. Ann
12 pages, accepted for publication in Math. Ann