| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 4595205 | Journal of Number Theory | 2007 | 12 Pages |
Abstract
Lubin conjectures that for an invertible series to commute with a noninvertible series with only simple roots of iterates, two such commuting power series must be endomorphisms of a single formal group. In this paper, we show that if the reduction of these two commuting power series are endomorphisms of a formal group, then themselves are endomorphisms of a formal group.
Related Topics
Physical Sciences and Engineering
Mathematics
Algebra and Number Theory
