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The problem of estimating the maximum Lyapunov exponents of the motion in a multiplet of interacting nonlinear resonances is considered for the case when the resonances have comparable strength. The corresponding theoretical approaches are…

Chaotic Dynamics · Physics 2013-12-20 I. I. Shevchenko

We present a new algorithm for computing the Lyapunov exponents spectrum based on a matrix differential equation. The approach belongs to the so called continuous type, where the rate of expansion of perturbations is obtained for all times,…

Dynamical Systems · Mathematics 2011-06-21 Tomasz Stachowiak , Marek Szydlowski

We consider a large class of 2D area-preserving diffeomorphisms that are not uniformly hyperbolic but have strong hyperbolicity properties on large regions of their phase spaces. A prime example is the Standard map. Lower bounds for…

Dynamical Systems · Mathematics 2017-01-27 Alex Blumenthal , Jinxin Xue , Lai-Sang Young

In the current paper we prove simplicity for the spectrum of Lyapunov exponents for triangle sequence and Selmer algorithm in dimension 3. We introduce a strategy that can be applied for a wide class of Markovian MCF.

Dynamical Systems · Mathematics 2019-05-01 Charles Fougeron , Alexandra Skripchenko

We investigate the spectrum of Lyapunov exponents for the geodesic flow of a compact rank 1 surface.

Dynamical Systems · Mathematics 2011-06-02 Keith Burns , Katrin Gelfert

We study the thermodynamic formalism associated with the Schneider map on the p-adic integers $p\mathbb{Z}_p$ . By introducing a geometric potential that captures the expansion of cylinder sets generated by the map, we define a Lyapunov…

Dynamical Systems · Mathematics 2026-01-12 Matias Alvarado , Nicolás Arévalo-Hurtado

We consider MRL maps (Markov-Renyi-L\"uroth), a class of interval maps with infinitely many branches that can have parabolic fixed points. We prove that for every MRL map $T$, the Lyapunov spectrum can be expressed in terms of the Legendre…

Dynamical Systems · Mathematics 2024-01-04 Nicolás Arévalo H

We extend the classical Lyapunov inequality on the measurable space with infinite measure and on the so-called Grand Lebesgue spaces (GLS). We find also the exact value for correspondent constant. Possible applications: Functional Analysis…

Functional Analysis · Mathematics 2014-11-11 E. Ostrovsky , L. Sirota

We prove the entropic continuity of Lyapunov exponent for C^r maps of the interval or of the circle with large entropy for r>1, without making any assumptions on the set of critical points. A consequence is the upper semi-continuity of…

Dynamical Systems · Mathematics 2025-10-22 Alexandre Delplanque , Hengyi Li

For a smooth expanding circle map, we show that the empirical distribution of Lyapunov exponents of periodic points of any fixed period is close to normal, with an error that decreases as the period grows. This establishes a version of the…

Dynamical Systems · Mathematics 2025-11-25 Kostiantyn Drach , Zhi Fu , Vadim Kaloshin , Zhiqiang Li , Carlangelo Liverani

We show that a linear Young differential equation generates a topological two-parameter flow, thus the notions of Lyapunov exponents and Lyapunov spectrum are well-defined. The spectrum can be computed using the discretized flow and is…

Dynamical Systems · Mathematics 2019-02-19 Nguyen Dinh Cong , Luu Hoang Duc , Phan Thanh Hong

For a better understanding of the chaotic behavior of systems of many moving particles it is useful to look at other systems with many degrees of freedom. An interesting example is the high-dimensional Lorentz gas, which, just like a system…

Chaotic Dynamics · Physics 2009-11-10 Astrid S. de Wijn , Henk van Beijeren

We construct an invariant measure for a piecewise analytic interval map whose Lyapunov exponent is not defined. Moreover, for a set of full measure, the pointwise Lyapunov exponent is not defined. This map has a Lorenz-like singularity and…

Dynamical Systems · Mathematics 2021-02-23 Jorge Olivares-Vinales

We consider the first order periodic systems perturbed by a $2N\ts 2N$ matrix-valued periodic potential on the real line. The spectrum of this operator is absolutely continuous and consists of intervals separated by gaps. We define the…

Spectral Theory · Mathematics 2007-05-23 Evgeny Korotyaev

We introduce the \emph{metric spectrum}, which measures the exponential rate of approximation to an isolated invariant set of points starting in its stable set, and relate it to the Lyapunov spectrum. We determine the metric spectrum of…

Dynamical Systems · Mathematics 2009-12-09 Mauro Patrão

In this paper, we study the size of the level sets of all Lyapunov exponents. For typical cocycles, we establish a variational relation between the topological entropy of the level sets of Lyapunov exponents and the topological pressure of…

Dynamical Systems · Mathematics 2024-07-23 Reza Mohammadpour

The transfer matrix method is applied to quasi one-dimensional and one-dimensional disordered systems with long-range interactions, described by band random matrices. We investigate the convergence properties of the whole Lyapunov spectra…

Disordered Systems and Neural Networks · Physics 2007-05-23 T. Kottos , A. Politi , F. M. Izrailev

We propose a novel framework to characterize the thermalization of many-body dynamical systems close to integrable limits using the scaling properties of the full Lyapunov spectrum. We use a classical unitary map model to investigate…

Chaotic Dynamics · Physics 2022-06-16 Merab Malishava , Sergej Flach

We give lower and upper bounds on both the Lyapunov exponent and generalised Lyapunov exponents for the random product of positive and negative shear matrices. These types of random products arise in applications such as fluid stirring…

Dynamical Systems · Mathematics 2022-07-20 Rob Sturman , Jean-Luc Thiffeault

Nowadays the Lyapunov exponents and Lyapunov dimension have become so widespread and common that they are often used without references to the rigorous definitions or pioneering works. It may lead to a confusion since there are at least two…

Chaotic Dynamics · Physics 2016-03-07 N. V. Kuznetsov , T. A. Alexeeva , G. A. Leonov