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, in the year the award is given away, 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).