Result: On the stochastic bifurcations regarding random iterations of polynomials of the form $z^{2} + c_{n}$: On the stochastic bifurcations regarding random iterations of polynomials of the form \(z^2 + c_n\)

Title:
On the stochastic bifurcations regarding random iterations of polynomials of the form $z^{2} + c_{n}$: On the stochastic bifurcations regarding random iterations of polynomials of the form \(z^2 + c_n\)
Source:
Ergodic Theory and Dynamical Systems. 44:3358-3384
Publication Status:
Preprint
Publisher Information:
Cambridge University Press (CUP), 2024.
Publication Year:
2024
Document Type:
Academic journal Article
File Description:
application/xml
Language:
English
ISSN:
1469-4417
0143-3857
DOI:
10.1017/etds.2024.17
DOI:
10.48550/arxiv.2206.06702
Rights:
CC BY
arXiv Non-Exclusive Distribution
Accession Number:
edsair.doi.dedup.....c63bd4a9a21b94e828a049d33abd3cfe
Database:
OpenAIRE

Further Information

In this paper, we consider random iterations of polynomial maps $z^{2} + c_{n}$ , where $c_{n}$ are complex-valued independent random variables following the uniform distribution on the closed disk with center c and radius r. The aim of this paper is twofold. First, we study the (dis)connectedness of random Julia sets. Here, we reveal the relationships between the bifurcation radius and connectedness of random Julia sets. Second, we investigate the bifurcation of our random iterations and give quantitative estimates of bifurcation parameters. In particular, we prove that for the central parameter $c = -1$ , almost every random Julia set is totally disconnected with much smaller radial parameters r than expected. We also introduce several open questions worth discussing.