Mixing attractors for 3-flows

We prove that every non-trivial attractor is mixing for a generic 3-flow in G(1)(M), the interior of the 3-flows for which all periodic orbits and sin gularities are hyperbolic. This implies an extension of a result by Bowen ( 1976 Mixing Anosov flows Topology 15 77-9): C-1 robust transitive sets with singularities for generic flows in G(1)(M) are mixing. In particular, gene ric Lorenz attractors are transitive sets for their corresponding time-t ma p, t not equal 0.