You can find the organizers in room 854 SBII.
All participants will be accommodated in Scandic Bakklandet. If you fly to Trondheim, then the easiest way to get to Trondheim from the airport is to take one of the airport bus services Flybussen or Værnesekspressen. The most convenient one is the latter, as the bus stop Bakkegata is directly outside the hotel. The closest bus stop for Flybussen is Søndre gt. Remember to buy a return ticket as this is cheaper.
It takes about 22 minutes to walk from the hotel to the university following this route.