Roots, iterations and logarithms of formal automorphisms

C. Praagman

doi:10.1007/BF01840500

Roots, iterations and logarithms of formal automorphisms

C. Praagman

Mathematics and Computer Science

Research output: Contribution to journal › Article › Academic › peer-review

3 Citations (Scopus)

Abstract

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 language	English
Pages (from-to)	251-259
Number of pages	9
Journal	Aequationes Mathematicae
Volume	33
Issue number	2-3
DOIs	https://doi.org/10.1007/BF01840500
Publication status	Published - 1987

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JO - Aequationes Mathematicae

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Roots, iterations and logarithms of formal automorphisms

Abstract

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