Igor Rodnianski
Igor Rodnianski ( born April 28 , 1972 , Ukrainian SSR , Soviet Union ) is an American mathematician at the Princeton University . 
<triplet> Igor Rodnianski <subj> April 28, 1972 <obj> date of birth <triplet> Ukrainian SSR <subj> Soviet Union <obj> country <triplet> Soviet Union <subj> Ukrainian SSR <obj> follows