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.
Vladimir Nebylitsyn Vladimir Dmitrievich Nebylitsyn, Russian: Владимир Дмитриевич Небылицын (1930, Chelyabinsk region — 1 October 1972, near Adler) was a Russian psychologist, one of Boris Teplov's disciples, professor (1968), associate member of the Russian Academy of Pedagogy.