Between Sergei Novikov and Anatoly Karatsuba, who won the Fields Medal in 1970?
Sergei Novikov (mathematician): Sergei Petrovich Novikov (also Serguei) (Russian: Серге́й Петро́вич Но́виков) (born 20 March 1938) is a Soviet and Russian mathematician, noted for work in both algebraic topology and soliton theory. Sergei Novikov (mathematician):  In 1970, he won the Fields Medal.
i don't know