Analytic moduli for parabolic Dulac germs
نویسندگان
چکیده
Abstract This paper gives moduli of analytic classification for parabolic Dulac germs (that is, almost regular germs). appear as first return maps hyperbolic polycycles. Their are given by a sequence Écalle–Voronin -type diffeomorphisms. The result is stated in broader class generalized having power- logarithmic asymptotic expansions. Bibliography: 23 titles.
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ژورنال
عنوان ژورنال: Russian Mathematical Surveys
سال: 2021
ISSN: ['1473-2009', '1468-4829', '0036-0279']
DOI: https://doi.org/10.1070/rm10001