Whose contributions to math came later, Eugen Slutsky or Vladimir Arnold?
Eugen Slutsky Evgeny "Eugen" Evgenievich Slutsky ( ; ( Евге́ний Евге́ньевич Слу́цкий) 7 April [O.S. 19 April] 1880 – 10 March 1948) was a Russian/Soviet mathematical statistician, economist and political economist.
Nikolay Umov Nikolay Alekseevich Umov (Russian: Никола́й Алексе́евич У́мов ; January 23, 1846 – January 15, 1915) was a Russian physicist and mathematician known for discovering the concept of Umov-Poynting vector and Umov effect.