  The pull-back, push-forward and multiplication of smooth functions can be
extended to distributions if their wave front set satisfies some conditions.
Thus, it is natural to investigate the topological properties of these
operations between spaces D\_$\Gamma$ of distributions having a wave front set
included in a given closed cone $\Gamma$ of the cotangent space. As discovered
by S. Alesker, the pull-back is not continuous for the usual topology on
D\_$\Gamma$ , and the tensor product is not separately continuous. In this
paper, a new topology is defined for which the pull-back and push-forward are
continuous, the tensor and convolution products and the multiplication of
distributions are hypocontinuous.
