Abstract(s) :
(Anglais) Starting from the dual Lagrangians recently obtained for (partially) massless spin-2 fields in the Stueckelberg formulation, the equations of motion for (partially) massless gravitons in (A)dS are presented in the form of twisted-duality relations. In both the massless and partially-massless cases, the duality relations admit a smooth flat limit. In the massless case, the limit reproduces the duality relations first presented by Hull. If time allows, recent results about interactions for partially-massless fields will be presented.