  In this work we explore dynamical perturbations induced by the massive
asteroids Ceres and Vesta on main-belt asteroids through secular resonances.
First we determine the location of the linear secular resonances with Ceres and
Vesta in the main belt, using a purely numerical technique. Then we use a set
of numerical simulations of fictitious asteroids to investigate the importance
of these secular resonances in the orbital evolution of main-belt asteroids. We
found, evaluating the magnitude of the perturbations in the proper elements of
the test particles, that in some cases the strength of these secular resonances
is comparable to that of known non-linear secular resonances with the giant
planets. Finally we explore the asteroid families that are crossed by the
secular resonances we studied, and identified several cases where the latter
seem to play an important role in their post-impact evolution.
