Kenkichi Iwasawa linked the behavior of Galois modules over towers of cyclotomic fields to p-adic zeta functions (padic analytic functions encoding the congruences first observed by Kummer).
Kenkichi Iwasawa linked the behavior of Galois modules over towers of cyclotomic fields to p-adic zeta functions (padic analytic functions encoding the congruences first observed by Kummer).