Crystallographic groups and flat manifolds from surface braid groups

Daciberg Lima Gonçalves, John Guaschi, Oscar Ocampo +1

Let $M$ be a compact surface without boundary, and $n\ge 2$. We analyse the quotient group $B_n(M)/{\Gamma }_2(P_n(M))$ of the surface braid group $B_n(M)$ by the commutator subgroup $Γ…