L'impact de la structure chrono-géométrique de l'espace-temps sur la causalité.

We discuss the usual account of causal structure that relies on the temporal precedence constraint between cause-effect pairs. In particular, we consider the subtle interplay between local and global characters of time and causality encoded in General Relativity. We find that the temporal precedence constraint must be relaxed. We argue that these results could lead to an enriched structure of the physical causality.