The IMU Abacus Medal, known before 2022 as the Rolf Nevanlinna Prize,[1] is awarded once every four years at the International Congress of Mathematicians, hosted by the International Mathematical Union (IMU), for outstanding contributions in Mathematical Aspects of Information Sciences including:
The prize was established in 1981 by the Executive Committee of the International Mathematical Union and named for the Finnish mathematician Rolf Nevanlinna. It consists of a gold medal and cash prize. The prize is targeted at younger theoretical computer scientists, and only those younger than 40 on January 1 of the award year are eligible.[2] It is awarded along with other IMU prizes, including the Fields Medal.[3]
abacus
was invoked but never defined (see the help page).