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For a special value of the mass, a massive graviton on de Sitter spaceacquires an enhanced scalar gauge symmetry, and is called partially massless.The partially massless graviton possesses a duality invariance akin toelectromagnetic duality. We display this duality in its manifestly local andcovariant form, in which it acts to interchange the first order field equationsand Bianchi identities of a gauge invariant field strength.

Manifest Duality Invariance for the Partially Massless Graviton