Crystallographic quotients of Artin braid groups and torus bundles over flat $3$-manifolds

Oscar Ocampo

For $n\ge 3$, let ${\overline{B}}_n=B_n/[P_n,P_n]$ be the crystallographic quotient of the Artin braid group, with translation subgroup ${\overline{P}}_n=P_n/[P_n,P_n]\cong {\mathbb{Z}}^N$,…