Lyapunov exponents for transfer operator cocycles of metastable maps: A quarantine approach
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- by C. González-Tokman and A. Quas
- Trans. Moscow Math. Soc. 2021, 65-76
- DOI: https://doi.org/10.1090/mosc/313
- Published electronically: March 15, 2022
Abstract:
This works investigates the Lyapunov–Oseledets spectrum of transfer operator cocycles associated to one-dimensional random paired tent maps depending on a parameter $\varepsilon$, quantifying the strength of the leakage between two nearly invariant regions. We show that the system exhibits metastability, and identify the second Lyapunov exponent $\lambda _2^\varepsilon$ within an error of order $\varepsilon ^2|\log \varepsilon |$. This approximation agrees with the naive prediction provided by a time-dependent two-state Markov chain. Furthermore, it is shown that $\lambda _1^\varepsilon =0$ and $\lambda _2^\varepsilon$ are simple, and the only exceptional Lyapunov exponents of magnitude greater than $-\log 2+ O\Big (\log \log \frac 1\varepsilon \big /\log \frac 1\varepsilon \Big )$.References
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Bibliographic Information
- C. González-Tokman
- Affiliation: University of Queensland, Australia
- Email: cecilia.gt@uq.edu.au
- A. Quas
- Affiliation: University of Victoria, Victoria
- MR Author ID: 317685
- Email: aquas@uvic.ca
- Published electronically: March 15, 2022
- © Copyright 2021 C. González-Tokman and A. Quas
- Journal: Trans. Moscow Math. Soc. 2021, 65-76
- MSC (2020): Primary 37H15
- DOI: https://doi.org/10.1090/mosc/313
- MathSciNet review: 4397152