Bessa, MárioRocha, Jorge2023-05-312023-05-312007M. Bessa, J. Rocha, Removing zero Lyapunov exponents in volume-preserving flows, Nonlinearity, 20, 4, 1007-1016, 20070951-7715http://hdl.handle.net/10400.2/13930Baraviera and Bonatti (2003 Ergod. Theory Dyn. Syst. 23 1655–70) proved that it is possible to perturb, in the C1-topology, a stably ergodic, volume-preserving and partially hyperbolic diffeomorphism in order to obtain a non-zero sum of all the Lyapunov exponents in the central direction. In this paper we obtain the analogous result for volume-preserving flows.engjournal article10.1088/0951-7715/20/4/0111361-6544