The conference will take place at LILLIAD building. It is is located in the campus of the University Lille 1, near the metro station "Cité Scientifique", on line 1. A detailed map of the campus, where LILLIAD building appears in the center of the picture, is avalaible here. Metro station "Cité Scientifique" appears just above LILLIAD building. Math Department is in M2-M3 buildings, on the left on LILLIAD building.
From train station Lille Flandres you just have to take metro line 1 for nine stations to "Cité Scientifique" (direction "4 Cantons Stade Pierre Mauroy").
From train station Lille Europe you can reach metro station Lille Flandres by foot or take metro line 2 for one station.