There are many hotels in the center.
The hotels in the list below are in a walking distance (500m-800m) to the colloquium venue (as well as also to the Rynek (~2.5 km)):
Polonez hotel:
Address: Reymonta 15, 30-059 Kraków
http://www.hotel-polonez.pl/en.php
Hotel Novotel Krakow Centrum
Address: Tadeusza Kosciuszki 5 , 30-105 Krakow
http://www.novotel.com/gb/hotel-3372-novotel-krakow-centrum/index.shtml
Hotel Novotel Krakow City West
Address: Armii Krajowej 11, 30-150 Krakow
http://www.novotel.com/gb/hotel-3407-novotel-krakow-city-west-/index.shtml
Ibis budget Kraków Bronowice. Hotel.
Address: Armii Krajowej 11, 30-150 Kraków
http://ibisbudgethotel.ibis.com/pl/polska/index.shtml
ACH (The Academic Hotel Centre), which consists of the Hotel “Krakowiak” and the Student Hostel “Za Kolumnami”, provides accommodation the participants of the scientific conferences as well as every tourist:
Address: Armii Krajowej 9, 30-150 Krakow
http://ach.krakow.pl/glowna/eng
If you need help to arrange your accommodation, please contact us.