Journal ArticleDOI
Rational rotation numbers for maps of the circle
TLDR
In this article, the authors consider families of maps of the circle of degree 1 which are homeomorphisms but not diffeomorphisms, and prove that the set of parameter values corresponding to irrational rotation numbers has Lebesgue measure 0.Abstract:
We consider families of maps of the circle of degree 1 which are homeomorphisms but not diffeomorphisms, that is maps like
$$x \to x + t + \frac{c}{{2\pi }}\sin (2\pi x)(\bmod 1)$$
withc=1. We prove that the set of parameter values corresponding to irrational rotation numbers has Lebesgue measure 0. In other words, the intervals on which frequency-locking occurs fill up the set of full measure.read more
Citations
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Book ChapterDOI
Real bounds in complex dynamics
TL;DR: In these lectures some results in complex dynamics in which real bounds play a role are reviewed and a survey on these real bounds is given and how to apply these is explained.
Journal ArticleDOI
Real bounds and Lyapunov exponents
Edson de Faria,Pablo Guarino +1 more
TL;DR: In this paper, it was shown that a critical circle map without periodic points has zero Lyapunov exponent with respect to its unique invariant Borel probability measure, and that no critical point of such a map satisfies the Collet-Eckmann condition.
Posted Content
The Attractor of Renormalization and Rigidity of Towers of Critical Circle Maps
TL;DR: In this paper, the existence of a global attractor with a Cantor set structure for the renormalization of critical circle mappings is shown, whose action on A is conjugate to the two-sided shift.
Journal ArticleDOI
On Critical Circle Homeomorphisms with Infinite Number of Break Points
TL;DR: In this article, it was shown that a critical circle homeomorphism with infinite number of break points without periodic orbits is conjugated to the linear rotation by a quasisymmetric map if and only if its rotation number is of bounded type.
References
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Book
An Introduction to the Theory of Numbers
TL;DR: The fifth edition of the introduction to the theory of numbers has been published by as discussed by the authors, and the main changes are in the notes at the end of each chapter, where the author seeks to provide up-to-date references for the reader who wishes to pursue a particular topic further and to present a reasonably accurate account of the present state of knowledge.
Journal ArticleDOI
Complete Devil's Staircase, Fractal Dimension, and Universality of Mode- Locking Structure in the Circle Map
TL;DR: In this paper, it was shown numerically that the stability intervals for limit cycles of the circle map form a complete devil's staircase at the onset of chaos and the complementary set to the stability interval is a Cantor set of fractal dimension $D=0.87.
Journal ArticleDOI
A structure theorem in one dimensional dynamics
W. de Melo,S. van Strien +1 more
TL;DR: On considere la classe #7B-A des applications C ∞ f:[0, 1]→[0,1] telles que f(0)=f(1)=0 et f a unique point critique C ∈(0, 2) as mentioned in this paper.