2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/204627A possible nonlinear completion of massive gravity of the Fierz-Pauli type is proposed. The theory describes a system consisting of a massive tensor field of the Fierz-Pauli type and an additional massive vector field. Massless limit as well as flat-spacetime limit can be taken smoothly. Constructing a nonlinear version of the physical-state condition which drives an extra scalar ghost from physical states is still unsettled.Talk at the 5th International Symposium on Quantum Theory and Symmetries, Valladolid (Spain), July 2007High Energy Physics - Theorytext