P-adic Teichmüller theory
In mathematics, p-adic Teichmüller theory describes the "uniformization" of p-adic curves and their moduli, generalizing the usual Teichmüller theory that describes the uniformization of Riemann surfaces and their moduli. It was introduced and developed by Shinichi Mochizuki (1996, 1999).
Source: Wikipedia — P-adic Teichmüller theory (CC BY-SA 4.0)