  These notes cover one of the topics of the class given in the Les Houches
Summer School ``Mathematical statistical physics'' in July 2005. The lectures
tried to give a summary of the recent mathematical results about the long-time
behaviour of dynamics of (mean-field) spin-glasses and other disordered media.
We have chosen here to restrict the scope of these notes to the dynamics of
trap models only, but to cover this topic in somewhat more depth.
