Sergei Adian
（重定向自Adjan）
Sergei Ivanovich Adian, also Adyan (Armenian:Սերգեյ Իվանովիչ Ադյան; Russian:Серге́й Ива́нович Адя́н, born 1 January 1931), is a Soviet and Russian mathematician. He is a professor at the Moscow State University and is known for his work in group theory, especially on the Burnside problem.