Which Soviet mathematician was interrogated by the KGB as a result of his or her work, Sergei Novikov or Bella Subbotovskaya?
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. In 1970, he won the Fields Medal.
Igor Gouzenko Igor Sergeyevich Gouzenko (Russian: Игорь Сергеевич Гузенко ] ; Ukrainian: Ігор Сергійович Гузенко ] ; January 13, 1919 – June 28, 1982) was a cipher clerk for the Soviet Embassy to Canada in Ottawa, Ontario. He defected on September 5, 1945 – just three days after the end of World War II – with 109 documents on Soviet espionage activities in the West. This forced Prime Minister Mackenzie King to call a Royal Commission to investigate espionage in Canada.