Abstract
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 language | English |
|---|---|
| Pages (from-to) | 2325-2329 |
| Number of pages | 5 |
| Journal | Proceedings of the American Mathematical Society |
| Volume | 124 |
| Issue number | 8 |
| DOIs | |
| Publication status | Published - 1996 |
ASJC Scopus subject areas
- Mathematics(all)
- Applied Mathematics