Continuous actions on primitive ideal spaces lift to C*-actions

We prove that for any second-countable, locally compact group G, any continuous G-action on the primitive ideal space of a separable, nuclear C*-algebra B such that B B₂ is induced by an action on B. As a direct consequence, we establish that every continuous action on a primitive ideal space is induced by an action on a C*-algebra with the same primitive ideal space. Moreover, we discuss an application to the classification of equivariantly O₂-stable actions.