Nonself-adjoint semicrossed products by abelian semigroups

Adam Hanley Fuller

Let $\mathcal{S}$ be the semigroup $\mathcal{S}=\sum^{\oplus k}_{i=1}\Sc{S}_i$, where for each $i\in I$, ${\mathcal{S}}_i$ is a countable subsemigroup of the additive semigroup $\B{R…