Normal forms and embeddings for power-log transseries

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TitreNormal forms and embeddings for power-log transseries
Type de publicationJournal Article
Year of Publication2016
AuteursMardesic P., Resman M., Rolin J-P., Zupanovic V.
JournalADVANCES IN MATHEMATICS
Volume303
Pagination888-953
Date PublishedNOV 5
Type of ArticleArticle
ISSN0001-8708
Mots-clésDulac map, Embedding in a flow, Iteration theory, Normal forms, Transseries
Résumé

Dulac series are asymptotic expansions of first return maps in a neighborhood of a hyperbolic polycycle. In this article, we consider two algebras of power-log transseries (generalized series) which extend the algebra of Dulac series. We give a formal normal form and prove a formal embedding theorem for transseries in these algebras. (C) 2016 Elsevier Inc. All rights reserved.

DOI10.1016/j.aim.2016.08.030