There are hundreds of places where to stay in Prague, able to satisfy nearly any possible wish - ranging from a very simple backpackers' hostels to top many-star hotels like Hilton or Marriott. The prices vary a lot as well; the tourist season in Prague never stops so unfortunatelly you cannot expect much bargains.

The conference will be held in the very centre of Prague (at Malostranske namesti, close to the Charles Bridge and the Castle). Based on the location, we could recommend the following places close to the conference venue:

• Hotel U tří pštrosů****
  Address: Dražického náměstí 12, Prague 1
  Room prices: single: from 88 EUR/night | double: from 107 EUR/night (prices include breakfast)
  Distance to venue: 5 minutes walk
  Reserve on-line.
   
• Hotel Waldstein****
  Address: Valdštejnské náměstí 6, Prague 1
  Room prices: single: from 85 EUR/night | double: from 95 EUR/night (prices include breakfast)
  Distance to venue: 3 minutes walk (just around the corner)
  Reserve on-line.
   
• Hotel Kampa Garden****
  Address: U Sovových mlýnů 9, Prague 1
  Room prices: single: from 85 EUR/night | double: from 100 EUR/night (prices include breakfast)
  Distance to venue: 8 minutes walk
  Reserve on-line.
   
• University hotel KRYSTAL***
  Address: J. Martího 2/407, Prague 6
  Room prices: single: 900 CZK (37 EUR)/night | double: 1200 CZK (50 EUR)/night (prices include breakfast)
  Distance to venue: 25-30 minutes by public transport (direct tram No 20).
  Reserve by email to krystal@cdms-krystal.cz or on-line.
   
• Hostel Sokol
  Address: Nosticova 2, Prague 1
  Room prices: dorms (6-14 beds): 350 CZK (15 EUR)/night | double: 900 CZK (37 EUR)/night (prices do not include meals)
  Distance to venue: 10 minutes walk or 1 stop by tram
  Reserve on-line.
   

The conference will be held at Charles University in Prague, Faculty of Mathematics and Physics at Malostranské náměstí 25, Prague 1, which is in the very historical centre - between the famous Charles Bridge and the Prague castle, former residence of Czech kings...
For Conference location and local transport information see e.g. here or see the location: Google or Mapy.cz

From the airport, public transport services can carry you to the centre of the city for just about 1 euro. The public transport service in Prague is cheap, fast, safe, reliable and covers the city very well. A sad but honest advice of the local organizers is: "Being a foreigner, avoid taxis in Prague in general, but especially from the airport!!!!!".