  Two applications of mean-field calculations based on 3D coordinate-space
techniques are presented. The first concerns the structure of odd-N superheavy
elements that have been recently observed experimentally and shows the ability
of the method to describe, in a self-consistent way, very heavy odd-mass
nuclei. Our results are consistent with the experimental data. The second
application concerns the introduction of correlations beyond a mean-field
approach by means of projection techniques and configuration mixing. Results
for Mg isotopes demonstrate that the restoration of rotational symmetry plays a
crucial role in the description of 32Mg.
