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We propose an extension of ergodic theory which focuses on the identification of ergodicity in terms of the uniqueness of the invariant measure. We first explain the concept for the doubling maps, which can be analyzed using Fourier…

Dynamical Systems · Mathematics 2015-12-11 Haakan Hedenmalm , Alfonso Montes-Rodriguez

Iterations of odd piecewise continuous maps with two discontinuities, i.e., symmetric discontinuous bimodal maps, are studied. Symbolic dynamics is introduced. The tools of kneading theory are used to study the homology of the discrete…

Dynamical Systems · Mathematics 2015-06-23 Henrique M. Oliveira

We study eigenfunction localization for higher dimensional cat maps, a popular model of quantum chaos. These maps are given by linear symplectic maps in ${\mathrm{Sp}}(2g,\mathbb Z)$, which we take to be ergodic. Under some natural…

Dynamical Systems · Mathematics 2025-09-03 Pär Kurlberg , Alina Ostafe , Zeev Rudnick , Igor E. Shparlinski

We propose an extension of the one dimensional (doubling) renormalization operator to the case of maps on the cylinder. The kind of maps considered are commonly referred as quasi-periodic forced one dimensional maps. We prove that the fixed…

Dynamical Systems · Mathematics 2011-12-21 Pau Rabassa , Angel Jorba , Joan Carles Tatjer

Analytical solutions to the chaotic and ergodic motion of a certain class of one-dimensional dissipative and discrete dynamical systems are derived. This allows us to obtain exact expressions for physical properties like the time…

chao-dyn · Physics 2009-10-30 D. Pingel , P. Schmelcher , F. K. Diakonos

A number of relations between the Kaplan-Yorke dimension, phase space contraction, transport coefficients and the maximal Lyapunov exponents are given for dissipative thermostatted systems, subject to a small external field in a…

Statistical Mechanics · Physics 2015-06-25 Denis J. Evans , E. G. D. Cohen , Debra J. Searles , F. Bonetto

Piecewise-linear maps describe dynamical phenomena that switch between distinct states and readily generate complex bifurcation structures due to their strong nonlinearity. We show that two-dimensional continuous piecewise-linear maps near…

Dynamical Systems · Mathematics 2025-12-03 D. J. W. Simpson , V. Avrutin

Nos\'e's pioneering 1984 work inspired a variety of time-reversible deterministic thermostats. Though several groups have developed successful doubly-thermostated models, single-thermostat models have failed to generate Gibbs' canonical…

Statistical Mechanics · Physics 2015-10-20 William Graham Hoover , Julien Clinton Sprott , Puneet Kumar Patra

Heterodimensional cycles are heteroclinic cycles that connect periodic orbits whose unstable manifolds have different dimensions. This is a source of nonhyperbolic dynamics and unstable dimension variability. For smooth invertible maps…

Dynamical Systems · Mathematics 2023-08-31 Paul Glendinning

In this paper we study in detail, both analytically and numerically, the dynamical properties of the triangle map, a piecewise parabolic automorphism of the two-dimensional torus, for different values of the two independent parameters…

Chaotic Dynamics · Physics 2009-11-13 Martin Horvat , Mirko Degli Esposti , Stefano Isola , Tomaz Prosen , Leonid Bunimovich

We propose and investigate a method for identifying timescales of dissipation in nonequilibrium steady states modeled as discrete-state Markov jump processes. The method is based on how the irreversibility-measured by the statistical…

Statistical Mechanics · Physics 2023-07-24 Freddy A. Cisneros , Nikta Fakhri , Jordan M. Horowitz

We construct exponential maps for which the singular value tends to infinity under iterates while the maps are ergodic. This is in contrast with a result of Lyubich from 1987 which tells that $e^z$ is not ergodic.

Dynamical Systems · Mathematics 2026-04-08 Weiwei Cui , Jun Wang

We introduce a higher dimensional quasiregular map analogous to the trigonometric functions and we use the dynamics of this map to define, for d>1, a partition of d-dimensional Euclidean space into curves tending to infinity such that two…

Dynamical Systems · Mathematics 2012-04-16 Walter Bergweiler , Alexandre Eremenko

We use random matrix theory (RMT) to study the first two moments of the wave power transmitted in time reversal invariant systems having ergodic motion. Dissipation is modeled by a number of loss channels of variable coupling strength. To…

Mesoscale and Nanoscale Physics · Physics 2009-11-10 Igor Rozhkov , Yan V. Fyodorov , Richard L. Weaver

We continue our study of the dynamics of mappings with small topological degree on (projective) complex surfaces. Previously, under mild hypotheses, we have constructed an ergodic ``equilibrium'' measure for each such mapping. Here we study…

Dynamical Systems · Mathematics 2009-09-10 Jeffrey Diller , Romain Dujardin , Vincent Guedj

We study time-reversal symmetry in dynamical systems with finite phase space, with applications to birational maps reduced over finite fields. For a polynomial automorphism with a single family of reversing symmetries, a universal (i.e.,…

Dynamical Systems · Mathematics 2015-05-13 John A. G. Roberts , Franco Vivaldi

Consider an open quantum system governed by a Gorini, Kossakowski, Sudarshan, Lindblad (GKSL) master equation with two times-scales: a fast one, exponentially converging towards a linear subspace of quasi-equilibria; a slow one resulting…

Quantum Physics · Physics 2023-09-08 François-Marie Le Régent , Pierre Rouchon

We numerically study the two-dimensional, area preserving, web map. When the map is governed by ergodic behavior, it is, as expected, correctly described by Boltzmann-Gibbs statistics, based on the additive entropic functional $S_{BG}[p(x)]…

Statistical Mechanics · Physics 2017-11-08 Guiomar Ruiz , Ugur Tirnakli , Ernesto P. Borges , Constantino Tsallis

Different dynamical symmetry breaking patterns are explored for the two dimensional phi4 model with higher order derivative terms. The one-loop saddle point expansion predicts a rather involved phase structure and a new Gaussian critical…

High Energy Physics - Lattice · Physics 2009-10-31 Marianne Dufour Fournier , Janos Polonyi

We study the dynamics of the Forced Logistic Map in the cylinder. We compute a bifurcation diagram in terms of the dynamics of the attracting set. Different properties of the attracting set are considered, as the Lyapunov exponent and, in…

Dynamical Systems · Mathematics 2011-12-20 Angel Jorba , Pau Rabassa , Joan Carles Tatjer