Sir Vaughan F. R. Jones

* December 31, 1952, Gisborne, New Zealand
† September 6, 2020, Nashville, Tennessee, USA

Fields Medal - 1990

For discovering an astonishing relationship between von Neumann algebras and geometric topology and, as a result, finding a new polynomial invariant for knots and links in 3-space. The central connecting link in all this mathematics is a tower of nested algebras which he had discovered earlier in the course of proving the Index Theorem for von Neumann algebras