Question: Did both Aleksandr Khinchin and Anatoly Karatsuba specialize in the same sub-field of mathematics?
Sentence (from "Aleksandr Mazur"): His trainees included Aleksandr Yurkevich, Anatoly Kolesov, Yury Kozin, Anatoly Kirov, Georgy Vershinin, Vladimir Novokhatko and Valery Anisimov.
Relevant evidence: No