Who is a computer scientist, Anatoly Karatsuba or Leonid Levin?
Anatoly Karatsuba Anatoly Alexeevitch Karatsuba (Russian: Анато́лий Алексе́евич Карацу́ба ; Grozny, Soviet Union, January 31, 1937 – Moscow, Russia, September 28, 2008) was a Russian mathematician working in the field of analytic number theory, "p"-adic numbers and Dirichlet series.
Gad Landau Gad Menahem Landau (born 1954) is an Israeli computer scientist noted for his contributions to combinatorial pattern matching and string algorithms and is the founding department chair of the Computer Science Department at the University of Haifa.