On 3D non-linear vector-vector duality

We consider the duality between topologically massive and self-dual nonabelian vector fields in three dimensions. In Fock-Schwinger gauge we obtain an explicit, albeit nonlocal, self-dual action equivalent to the topologically massive action. The inverse construction is performed for a restricted class of modified self-dual actions and leads to a topologically massive theory with two interacting gauge fields. (orig.)