Sergei Novikov

* March 20, 1938, Gorky (today Nizhny Novgorod), Soviet Union (today Russia)
† June 06, 2024

Fields Medal - 1970

For important advances in topology, the most well-known being his proof of the topological invariance of the Pontrjagin classes of the differentiable manifold, including a study of the cohomology and homotopy of Thom spaces.