  We discuss the octupole deformation properties of many even-even actinide
isotopes. The analysis is carried out in the mean field framework
(Hartree-Fock-Bogoliubov approximation) by using the axially symmetric octupole
moment as a constraint. A one-dimensional octupole collective Hamiltonian is
used to obtain properties like excitation energies or $E1$ and $E3$ transition
probabilities of the negative parity band-heads associated to the lowest lying
$1^{-}$ and $3^{-}$ states. The evolution of these values with neutron number
is discussed and a comparison with available experimental data is made. In
order to minimize the uncertainties associated to the energy density functional
used, the calculations have been carried out for an assorted set ranging from
the BCP1 functional to the finite range Gogny interaction with the D1S, D1N and
D1M parametrization.
