Resumen de On the functional equation H [tau (F,G), chi (F,G)] = H (F,G).
In this paper we solve the functional equation H [tau(F,G), chi (F,G)] = H (F,G) where the unknowns tau and chi are two semigroups on a space of distribution functions, and H is a given pointwise binary operation on this space satisfying some regularity conditions
