Contacts: Antonella Perucca, Gabor Wiese (name.surname@uni.lu)

Webpage: https://math.uni.lu/JA25

Information

We are happy to welcome you to the 33rd Journées Arithmétiques taking place from June 30th to July 4th, 2025 in Esch-sur-Alzette, Luxembourg.

• Journées Arithmétiques 2025 is planned as an in-person event.
• The conference site is located at the Campus Belval of the University of Luxembourg.
• On this page you will find all the information for registration, schedule of the conference etc.

Deadlines

Registration opens in the fall of 2024. Deadlines for registration, financial support, and abstract submissions for a contributed talk will be communicated.

Scientific Program

The Chair of the Scientific Committee is Xinwen Zhu from Stanford University. He will select the Scientific Committee which, in turn, will select the plenary speakers.
As customary, there will be parallel sessions with contributed talks.
No proceedings volume is planned but the book of abstracts will be distributed to the participants.

History of the Journées Arithmétiques

The 32èmes Journées Arithmétiques (July 2023) was held in Nancy, its webpage is here and here.

A text on the history of the Journées Arithmétiques (by Jacques Martinet) : here.

Accomodation (Warning)

We have been made aware of several convincing phone and mail scams that are focusing on workshops/conferences participants and especially speakers.
Participants may be contacted by phone or by mail by firms to arrange accommodation for workshops, this includes a request to enter credit card information:
do not give any information about your credit card details. Several conferences have been already targeted.

Esch-sur-Alzette, also called Esch, is the second largest city in Luxembourg. Notice that there is a city called Esch-sur-Sure, and this is the wrong place to go.

We are not arranging the accomodation for the participants (with the exception of the plenary speakers). We point out that the Campus Belval has a train station that is well connected with the central station in Esch (7 minutes) and to the station in Luxembourg City (30 minutes).

HOTELS: There is an Ibis Hotel in Campus Belval. There are several hotels in the city center of Esch. It's also a possibility to stay in Luxembourg City, possibly near to the train station or a convenient bus connection.
There are some nice youth hostels in Luxembourg, we recommend the one in Esch-sur Alzette (see here), conveniently located at the train station, and that has some single and double bedrooms.

Practical information

• TRANSPORTS: Public transports in Luxembourg are free. You can jump on any train or bus, but you have to pay to travel first class. There is a practical app to find trains and buses, Mobiliteit.lu.
• EATING: In Campus Belval there is a shopping center (Belval Plaza) that contains a Delhaize supermarket. The restaurants and cafés on the Campus are listed here.
• PHARMACIES: There is a pharmacy on Campus (Pharmacie de Belval; 9, avenue du Blues). There is always some pharmacy that is open in the night or during the weekend, to find out which one is open you can look at this website.
• DOCTORS: To join a doctor outside the usual hours there are the "Maison medicale", there is one in Belval (3-5, avenue du Swing) and you can go there without appointment. See also this website.
• HOSPITALS: The phone number to call an ambulance is 112. In Esch-sur-Alzette there is a big hospital called CHEM, see this website. The Emergency department (Urgences) are next to the main entrance (Rue Emile Mayrisch, Esch-sur-Alzette).

Sponsors

The organizers of the Journées Arithmétiques 2025 would like to thank the University of Luxembourg and the Luxembourgish Mathematical Society, the Centre International de Mathématiques Pures et Appliquées (CIMPA), the Journal of Number Theory (Elsevier), the Roman Number Theory Association (RNTA), and the Société mathématique de France (SMF), for their generous financial and/or logistic support.