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Ivan Matveyevich Vinogradov, Russian mathematician and academic (died 1983)

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Ivan Vinogradov
Soviet mathematician (1891–1983)
Ivan Matveevich Vinogradov was a Soviet mathematician, who was one of the creators of modern analytic number theory, and also a dominant figure in mathematics in the USSR. He was born in the Velikiye Luki district, Pskov Oblast. He graduated from the University of St.…Source: Wikipedia (CC BY-SA)