Newton flows for elliptic functions I Structural stability characterization & genericity

Open Access
Authors
Publication date 2018
Journal Complex Variables and Elliptic Equations
Volume | Issue number 63 | 6
Pages (from-to) 815-835
Organisations
  • Faculty of Science (FNWI) - Korteweg-de Vries Institute for Mathematics (KdVI)
  • Faculty of Science (FNWI)
Abstract
Newton flows are dynamical systems generated by a continuous, desingularized Newton method for mappings from a Euclidean space to itself. We focus on the special case of meromorphic functions on the complex plane. Inspired by the analogy between the rational (complex) and the elliptic (i.e. doubly periodic meromorphic) functions, a theory on the class of so-called Elliptic Newton flows is developed. With respect to an appropriate topology on the set of all elliptic functions f of fixed order (Formula presented.) we prove: For almost all functions f, the corresponding Newton flows are structurally stable i.e. topologically invariant under small perturbations of the zeros and poles for f [genericity]. They can be described in terms of nondegeneracy-properties of f similar to the rational case [characterization].
Document type Article
Language English
Published at https://doi.org/10.1080/17476933.2017.1350853
Other links https://www.scopus.com/pages/publications/85024503920
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Newton flows for elliptic functions I (Final published version)
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