Homogenization Results for a Deterministic Multi-domains Periodic   Control Problem
  We consider homogenization problems in the framework of deterministic optimal control when the dynamics and running costs are completely different in two (or more) complementary domains of the space $\R^N$. For such optimal control problems, the three first authors have shown that several value functions can be defined, depending, in particular, of the choice is to use only "regular strategies" or to use also "singular strategies". We study the homogenization problem in these two different cases. It is worth pointing out that, if the second one can be handled by usual partial differential equations method " \'a la Lions-Papanicolaou-Varadhan" with suitable adaptations, the first case has to be treated by control methods (dynamic programming). 
Guy Barles (LMPT, FRDP), Ariela Briani (LMPT, FRDP), Emmanuel   Chasseigne (LMPT, FRDP), Nicoletta Tchou (IRMAR)
math.AP