2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/134421In this paper, we show existence and uniqueness of a solution to a functional differential equation with infinite delay. We choose an appropriate Frechet space so as to cover a large class of functions to be used as initial functions to obtain existence and uniqueness of solutions.14 pagesDynamical SystemsSemigroups on Frechet spaces and equations with infinite delaystext