Density of backward paths on the Julia set of a semigroup

Authors

  • Gerardo R. Chacón Departamento de Matemáticas, Pontificia Universidad Javeriana Cr 7 # 40-62, Bogotá
  • Renato Colucci Departamento de Matemáticas, Pontificia Universidad Javeriana Cr 7 # 40-62, Bogotá
  • Daniele D’Angeli Institut für Mathematische Strukturtheorie (Math C) Technische Universität Graz, Steyrergasse 308010 Graz

DOI:

https://doi.org/10.5644/SJM.10.1.10

Keywords:

Complex dynamics, rational semigroups, Julia set, symbolic dynamics

Abstract

A well-known result from the theory of dynamics of semigroups of rational functions is that the backward orbit of almost every complex number accumulates on the Julia set of the semigroup. In this article we significantly improve that result by giving a tree structure to the backward orbit and showing that almost every path of the tree is dense in the Julia set of the semigroup.

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References

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J. Zhou, The Julia set of a random iteration system, Bull. Austral. Math. Soc., 62 (1) (2000), 45-50.

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Published

04.06.2024

How to Cite

Chacón, G. R., Colucci, R., & D’Angeli, D. (2024). Density of backward paths on the Julia set of a semigroup. Sarajevo Journal of Mathematics, 10(1), 77–85. https://doi.org/10.5644/SJM.10.1.10

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