Abstract
The aim of this project of research is to study systematicly some aspects of dynamical systems defined by actions of R^k, k>1, more precisely:A.- we will give continuity to the study of codimension one Anosov actions of R^k that we initiate with T. Barbot in 2008. More precisely, we try to generalize results known on the classification of codimension one Anosov flows (actions of R) for ac…