English

Further elements on hypernormal forms of non-resonant double Hopf singularities

Classical Analysis and ODEs 2023-04-13 v1

Abstract

In this paper, we deal with hypernormal forms of non-resonant double Hopf singularities. We investigate the infinite level normal form classification of such singularities with nonzero radial cubic part. We provide a normal form decomposition of normal form vector fields in terms of planar-rotating and planar-radial vector fields. These facilitate the pattern recognition and analysis of the corresponding generalized homological maps. This paper is the first instance of the normal form classification for generic non-resonant double Hopf singularities without structural symmetry.

Keywords

Cite

@article{arxiv.2304.05739,
  title  = {Further elements on hypernormal forms of non-resonant double Hopf singularities},
  author = {Majid Gazor and Boumediene Hamzi and Ahmad Shoghi},
  journal= {arXiv preprint arXiv:2304.05739},
  year   = {2023}
}
R2 v1 2026-06-28T10:01:41.596Z