Number Theory Down Under 2025 (NTDU) will be held at the University of Canterbury in Christchurch New Zealand from the 25th to the 29th of August, 2025. This is part of a series of conferences (see NTDU). It is the first time it is held in New Zealand. The organisers are Brendan Creutz, Felipe Voloch and Liangyi Zhao.
Talks will be at the Rātā E16 Lecture Theatre at the University of Canterbury.
The conference dinner will be on Wednesday, August 27th, at the University of Canterbury Club.
We will have drinks from 5:15pm and dinner from 6pm. The dinner venue is a short walk from the lecture room.
Here is a map
Main Speakers
- James Borger (ANU)
- Steven Galbraith (University of Auckland)
- Peng Gao (Beihang University)
- Harald Helfgott (CNRS)
- Mumtaz Hussein (La Trobe University)
- Igor Shparlinski (UNSW)
- Alexei Skorobogatov (Imperial College London)
- Lola Thompson (Utrecht University)
- Ilaria Viglino (EPFL)
Programme
Lunch options
You are on your own for lunch but there are various options nearby and most of these places do espresso drinks as well. Nuts and Bolts (on the Rātā building, same as the talks), Ancestral (on the Rutherford building), Therapy (on the Rehua building), Oishii Sushi and Otto pizza (both on the Puaka-James Hight building) and LB&co and Seoulful Table (both off campus, on Creyke Rd, near Ilam Rd). Here is a link to a campus map.Registration
Registration is now closed.Travel and accommodation
Christchurch aiport (CHC) is served by flights from many Australian airports and a few from Asia as well (e.g. Singapore) with additional connections via Auckland (AKL). Australian citizens do not need a visa to travel to New Zealand. For information on visas and electronic travel authority, visit New Zealand Immigration.Beware of any unsolicited emails from travel agencies offering to book your accommodation. We have not engaged any travel agency to make accommodation bookings for this workshop—if you receive such an email, it is a scam.
There are a number of suitable motels on Riccarton Rd (near Ilam Rd) about 20min walk to the University. See, e.g., this map. In addition, a couple of hotels in the city centre are Ibis and Novotel. Finally, a couple of budget conscious options are Haka House, in the city centre and Lylo, near the airport. There are buses from these hotels to the University.
Other conferences
Note also the following conferences prior to this meeting: Number Theory Days at UNSW Sydney, August 13-15, 2025 and Rene 2025 in honor of Rene Schoof in Tahiti, August 18-22, 2025.
