Naum Il'ich Feldman
Naum Il'ich Feldman ( 26 November 1918 – 20 April 1994 ) was a Russian mathematician who specialized in number theory . 
<triplet> Naum Il'ich Feldman <subj> 26 November 1918 <obj> date of birth <subj> 20 April 1994 <obj> date of death