In 2023, the ALGAR summer school will be dedicated to modern local-global principles for quadratic forms over function fields and their applications to the study of field invariants, such as the u-invariant and the Pythagoras number, and the definability of subrings of fields.

The main part of the summer school takes place in the week from 21 to 25 August. Here, familiarity with basic quadratic form theory and valuation theory will be assumed. Participants needing some initiation to these topics are invited to an introductory programme on 17 and 18 August.

The lectures will be accompanied by exercise sessions and a couple of research talks.

The main lecturers are:

• ​Nicolas Daans (Charles University, Prague, Czechia)
• ​Diego Izquierdo (École Polytechnique, Paris, France)
• ​Vlerë Mehmeti (Sorbonne Université, Paris, France)
• ​Raman Parimala (Emory University, Georgia, USA)

Find out more about the programme here.