2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/63222A stochastic differential equation with infinite memory is considered. The drift coefficient of the equation is a nonlinear functional of the past history of the solution. Sufficient conditions for existence and uniqueness of stationary solution are given.6 pages, submitted to Probability Theory and ApplicationsProbabilityDynamical Systemstext