scholarly journals Almost sure mixing rates for non-uniformly expanding maps

2018 ◽  
Vol 18 (04) ◽  
pp. 1850027
Author(s):  
Xin Li ◽  
Helder Vilarinho

We consider random perturbations of non-uniformly expanding maps, possibly having a non-degenerate critical set. We prove that if the volume measure of the set of points failing the non-uniform expansion or the slow recurrence to the critical set, at a certain times has a (stretched) exponential decay for almost all random orbits, then the decay of correlations along random orbits is stretched exponential, up to some waiting time. As applications we obtain almost sure stretched exponential decay of correlations along random orbits for Viana maps, as for a class of non-uniformly expanding local diffeomorphisms and a family of unimodal maps.

2019 ◽  
Vol 20 (01) ◽  
pp. 2050002
Author(s):  
C. Cuny ◽  
J. Dedecker ◽  
A. Korepanov ◽  
F. Merlevède

For a large class of quickly mixing dynamical systems, we prove that the error in the almost sure approximation with a Brownian motion is of order [Formula: see text] with [Formula: see text]. Specifically, we consider nonuniformly expanding maps with exponential and stretched exponential decay of correlations, with one-dimensional Hölder continuous observables.


Author(s):  
A. Korepanov ◽  
Z. Kosloff ◽  
I. Melbourne

The transfer operator corresponding to a uniformly expanding map enjoys good spectral properties. We verify that coupling yields explicit estimates that depend continuously on the expansion and distortion constants of the map. For non-uniformly expanding maps with a uniformly expanding induced map, we obtain explicit estimates for mixing rates (exponential, stretched exponential, polynomial) that again depend continuously on the constants for the induced map together with data associated with the inducing time. Finally, for non-uniformly hyperbolic transformations, we obtain the corresponding estimates for rates of decay of correlations.


1998 ◽  
Vol 105 (9) ◽  
pp. 571-575 ◽  
Author(s):  
K. Suzuki ◽  
G. Bley ◽  
U. Neukirch ◽  
J. Gutowski ◽  
N. Takojima ◽  
...  

1999 ◽  
Vol 166 (1-6) ◽  
pp. 189-198 ◽  
Author(s):  
Eugene G Novikov ◽  
Arie van Hoek ◽  
Antonie J.W.G Visser ◽  
Johannes W Hofstraat

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