Wolfgang Krull
Wolfgang Krull ( 26 August 1899 – 12 April 1971 ) was a German mathematician who made fundamental contributions to commutative algebra , introducing concepts that are now central to the subject . 
<triplet> Wolfgang Krull <subj> 26 August 1899 <obj> date of birth <subj> 12 April 1971 <obj> date of death <subj> German <obj> country of citizenship