Roots, iterations and logarithms of formal automorphisms

C. Praagman

Research output: Contribution to journalArticleAcademicpeer-review

3 Citations (Scopus)


In this paper it is proved that having a logarithm is equivalent to having roots of arbitrary order in the group of automorphisms of a formal power series ring, and in algebraic subgroups too.
Original languageEnglish
Pages (from-to)251-259
Number of pages9
JournalAequationes Mathematicae
Issue number2-3
Publication statusPublished - 1987


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