2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/157233We present a careful approximation of the geodesics in trees of hyperbolic or relatively hyperbolic groups. As an application we prove a combination theorem for finite graphs of relatively hyperbolic groups, with both Farb's and Gromov's definitions.33 pagesGroup Theory20F65Geodesics in trees of hyperbolic and relatively hyperbolic groupstext