Math department, University of Duisburg-Essen
Hotel Flowers Hotel
Hotel Motel One
Frohnhauser Straße 55
Phone: +49 201 24679-0
Phone +49 201 4375370
The conference venue is in walking distance from the city center (where the hotels are located). To cover larger distances, you can use the subway (U-Bahn), tram (Straßenbahn) or a bus.
The conference venue is the "Hörsaalzentrum" which is located very close to the university campus (to its south-east corner, see the map above; this is not the math department!). You can walk there from either of the hotels.
Alternatively, you can take a Straßenbahn (lines 101, 103, 105, 106, 109) to Rheinischer Platz, or a subway train (lines U11, U17) to Universität and walk across the campus from there.
For travelling inside Essen (this includes all hotels, the university, restaurants etc. mentioned here), you need a ticket for Zone A2, which costs 3.00 EUR (single trip), or 11.00 EUR (ticket for four trips). For the ride from Essen central station to Berliner Platz or Universität Essen it is enough to buy a ticket Zone K ('Kurzstrecke', short distance) for 1.80 EUR (single trip) or 6.30 EUR (four trips). Note that a Zone K ticket is valid only for 3 stops. Single A2 and K tickets are valid for a ride starting right after you buy the ticket; you cannot buy them in advance for later rides. For buying tickets in advance, take a ticket for four trips; those tickets must be stamped when you enter the train, at the machine inside the train. (If you change trains, you do not need to revalidate the ticket.)
Tickets can be bought at ticket machines in every underground station and at every tram stop, or in the EVAG centers in the underground station of the central train station, or at Berliner Platz.