Random product of quasi-periodic cocycles
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- by Jamerson Bezerra and Mauricio Poletti PDF
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Abstract:
Given a finite set of quasi-periodic cocycles the random product of them is defined as the random composition according to some probability measure.
We prove that the set of $C^r$, $0\leq r \leq \infty$ (or analytic) $\kappa +1$-tuples of quasi-periodic cocycles taking values in $SL_{2}(\mathbb {R})$ such that the random product of them has positive Lyapunov exponent contains a $C^0$ open and $C^r$ dense subset which is formed by $C^0$ continuity point of the Lyapunov exponent.
For $\kappa +1$-tuples of quasi-periodic cocycles taking values in $GL_{d}(\mathbb {R})$ for $d>2$, we prove that if one of them is diagonal, then there exists a $C^r$ dense set of such $\kappa +1$-tuples which have simple Lyapunov spectrum and are $C^0$ continuity point of the Lyapunov exponent.
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Additional Information
- Jamerson Bezerra
- Affiliation: IMPA-Instituto Nacional de Matemática Pura e Aplicada, Rio de Janeiro, CEP: 22460-320, Brazil
- ORCID: 0000-0002-1894-6684
- Email: jdouglas@impa.br
- Mauricio Poletti
- Affiliation: CNRS-Laboratoire de Mathématiques d’Orsay, UMR 8628, Université Paris-Sud 11, Orsay Cedex 91405, France
- MR Author ID: 1227479
- Email: mpoletti@impa.br
- Received by editor(s): July 11, 2019
- Received by editor(s) in revised form: October 31, 2020
- Published electronically: April 7, 2021
- Additional Notes: Work partially supported by Fondation Louis D-Institut de France (project coordinated by M. Viana)
The first author was supported by CAPES
The second author was supported. by the ERC project 692925 NUHGD - Communicated by: Wenxian Shen
- © Copyright 2021 American Mathematical Society
- Journal: Proc. Amer. Math. Soc. 149 (2021), 2927-2942
- MSC (2020): Primary 37A05
- DOI: https://doi.org/10.1090/proc/15428
- MathSciNet review: 4257805