2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/209664Suppose a group $G$ is quasi-isometric to a free product of a finite set $S$ of finitely generated abelian groups; let $S'$ denote the set of ranks of the free abelian parts of the groups in $S$. Then $G$ is commensurable with the free product of $\Z$ with a $\Z^n$ for each $n$ occurring in $S'$.2 pages plus referencesGroup TheoryGeometric Topologytext