2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/99521We consider a multi-particle generalization of linear edge-reinforced random walk (ERRW). We observe that in absence of exchangeability, new techniques are needed in order to study the multi-particle model. We describe an unusual coupling construction associated with the two-point edge-reinforced process on Z and prove a form of recurrence: the two particles meet infinitely often a.s.12 pagesProbability60K37, 60K35text