On the abundance of traveling waves in coupled expanding circle maps

Author(s):  
V. Afraimovich ◽  
M. Courbage
2011 ◽  
Vol 32 (6) ◽  
pp. 2011-2024 ◽  
Author(s):  
ALE JAN HOMBURG

AbstractWe discuss the dynamics of skew product maps defined by circle diffeomorphisms forced by expanding circle maps. We construct an open class of such systems that are robustly topologically mixing and for which almost all points in the same fiber converge under iteration. This property follows from the construction of an invariant attracting graph in the natural extension, a skew product of circle diffeomorphisms forced by a solenoid homeomorphism.


2000 ◽  
Vol 10 (09) ◽  
pp. 2061-2073 ◽  
Author(s):  
WEN-XIN QIN

In this paper we study the existence of traveling waves with any rational velocity in coupled circle maps. We introduce an induced map, then a traveling wave with velocity p/q corresponds to a fixed point of the induced map. Moreover, the stability of a traveling wave is equivalent to that of the corresponding fixed point. Space translational system is chaotic on the set of traveling waves with rational velocities. In addition, time evolution operator exhibits sensitivity-like behavior with respect to initial conditions. By investigating the spatial periodicity of traveling waves, we obtain infinitely many space-time periodic structures. We also consider spatial asymptoticity of these traveling waves, which leads to the existence of fronts, defect solutions and soliton-like solutions. The abundance of traveling waves may be regarded as a signature of the spatial-temporal complexity in extended systems.


Nonlinearity ◽  
2004 ◽  
Vol 17 (5) ◽  
pp. 1723-1730 ◽  
Author(s):  
Gerhard Keller ◽  
Hans Henrik Rugh
Keyword(s):  

2016 ◽  
Vol 164 (4) ◽  
pp. 858-889 ◽  
Author(s):  
Fanni Sélley ◽  
Péter Bálint

Nonlinearity ◽  
2013 ◽  
Vol 26 (12) ◽  
pp. 3231-3245 ◽  
Author(s):  
Julia Slipantschuk ◽  
Oscar F Bandtlow ◽  
Wolfram Just
Keyword(s):  

2007 ◽  
Vol 75 (6) ◽  
Author(s):  
Prashant M. Gade ◽  
D. V. Senthilkumar ◽  
Sukratu Barve ◽  
Sudeshna Sinha

2013 ◽  
Vol 28 (3) ◽  
pp. 423-452 ◽  
Author(s):  
Weixiao Shen ◽  
Sebastian van Strien

2017 ◽  
Vol 39 (2) ◽  
pp. 289-310 ◽  
Author(s):  
OSCAR F. BANDTLOW ◽  
FRÉDÉRIC NAUD

We prove that there exists a dense set of analytic expanding maps of the circle for which the Ruelle eigenvalues enjoy exponential lower bounds. The proof combines potential theoretic techniques and explicit calculations for the spectrum of expanding Blaschke products.


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