When is a p-adic power series an endomorphism of a formal group?

Research output: Contribution to journalArticle

5 Citations (Scopus)


If f (x) is a noninvertible endomorphism of a formal group, then we have that f (x) commutes with an invertible series and Ō[[x]] is Galois over Ō[[fn(x)]] for all n ∈ N. We shall prove that the converse of this statement is also true.

Original languageEnglish
Pages (from-to)2325-2329
Number of pages5
JournalProceedings of the American Mathematical Society
Issue number8
Publication statusPublished - 1996 Jan 1


ASJC Scopus subject areas

  • Mathematics(all)
  • Applied Mathematics

Cite this