Question: What area of mathematics did both Lev Schnirelmann and Yuri Linnik work on?
Sentence (from "Yuri Linnik"): Yuri Vladimirovich Linnik (Russian: Ю́рий Влади́мирович Ли́нник ; January 8, 1915 – June 30, 1972) was a Soviet mathematician active in number theory, probability theory and mathematical statistics.
Relevant evidence: Yes