original: in the early 1970s , barry mazur considered generalizations of iwasawa theory to abelian varieties .
simplifications: in the early 1970s , barry mazur compared generalizations of iwasawa theory to abelian varieties . in the early 1970s , barry mazur considered generalizations of iwasawa theory to abelian varieties . in the early 1970s , barry mazur compared iwasawa and abelian theories . barry mazur considered iwasawa theory to abelian generalizations in the early 1970s . in the former 1970s , barry mazur considered generalizations of iwasawa theory to abelian varieties . in the early 1970s , barry mazur thought parts of iwasawa theory was also abelian theory . in the early 1970s , barry mazur thought generalizations of iwasawa theory were of the abelian type . in the early 1970s , barry mazur thought of generalising the iwasawa theory to abelian varieties .