Abstract
We consider a family \(\mathcal F\) of maps with two branches and a common neutral fixed point 0 such that the order of tangency at 0 belongs to some interval \([\alpha _0, \alpha _1]\subset (0, 1)\). Maps in \(\mathcal F\) do not necessarily share common Markov partition. At each step a member of \(\mathcal F\) is chosen independently with respect to the uniform distribution on \([\alpha _0, \alpha _1]\). We show that the construction of the random tower in Bahsoun et al. (Quenched Decay of Correlations for Slowly Mixing Systems, 2018, [5]) with general return time can be carried out for random compositions of such maps. Thus their general results are applicable and gives upper bounds for the quenched decay of correlations of form the \(n^{1-1/\alpha _0+\delta }\) for the any \(\delta >0\).
Dedicated to Abdulla Azamov and Leonid Bunimovich on the occasion of their 70th birthday.
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Notes
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Such extensions can be constructed easily. For example, for \(f\in \mathcal {F}\) it is sufficient to take \(\tilde{f}(x)=a(x-x_\alpha )^4+b(x-x_\alpha )^3+c(x-x_\alpha )^2+d(x-x_\alpha )+1\) with \(a<bc/d\), where a, b, c are the Taylor coefficients of f at \(x=x_\alpha \).
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Acknowledgements
This research was supported by The Leverhulme Trust through the research grant RPG-2015-346. The author would like to thank Wael Bahsoun for useful discussions during the preparation of the paper.
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Ruziboev, M. (2018). Almost Sure Rates of Mixing for Random Intermittent Maps. In: Azamov, A., Bunimovich, L., Dzhalilov, A., Zhang, HK. (eds) Differential Equations and Dynamical Systems. USUZCAMP 2017. Springer Proceedings in Mathematics & Statistics, vol 268. Springer, Cham. https://doi.org/10.1007/978-3-030-01476-6_11
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