The closest station to campus is "Villetaneuse Université" (Tramway T11 and Tramway T8); if the tramway T11 doesn’t work, one may also walk from the station "Epinay-Villetaneuse".
To come from Paris, an easy way is to take the Transilien line H (departure from "Gare du Nord", tracks 30-36, ground level) to "Epinay-Villetaneuse". Do not get out of the station, you will find connection to the tramway T11 at one end of track 4. Take the T11 to "Villetaneuse Université". For this trip, you will need one "Métro-Train-RER" ticket.
To come from "Saint-Denis, Carrefour Pleyel", take the metro to "Saint Denis Porte de Paris", and then the tramway T8. For this trip, you will need one "Metro-Train-RER" ticket for the metro, and one "bus-tram" ticket.
Tickets may be bought on a smartphone via the application IDF-Mobilité or Bonjour-Ratp, or at a counter in an Ratp station.
To reach the room from the "Villetaneuse Université" station, first walk around the building under construction and enter through the north entrance of the University. Follow the path straight ahead under the footbridge as far as possible, then turn left and right after a few steps. A little further south, you will be able to enter the Institut Galilée building.
The conference will take place in the Euler amphitheater, which is on the ground floor, close to the entrance, on the right.