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Shift maps and statistical invariants for some dynamical systems

Sergey Kryzhevich, Yiwei Zhang

Abstract

Given a dynamical system, we study the so-called space of shift functions thus introducing another vision on bifurcations and chaos. As an application of the obtained results, we give a partial solution to an open problem formulated in \cite{Misiurewicz1}: to describe all the one-dimensional maps with all the periodic orbits having the same mean value. Moreover, we show that there are continuous families of such mappings having infinitely many periodic points. For this purpose, we study the dynamics of the so-called replicator maps, depending on two parameters. Such studies are also motivated by the analysis of the dynamics of evolutionary games under selection. We prove the existence of hyperbolic chaos for the considered map and demonstrate that the average values are the same for all the periodic orbits.

Shift maps and statistical invariants for some dynamical systems

Abstract

Given a dynamical system, we study the so-called space of shift functions thus introducing another vision on bifurcations and chaos. As an application of the obtained results, we give a partial solution to an open problem formulated in \cite{Misiurewicz1}: to describe all the one-dimensional maps with all the periodic orbits having the same mean value. Moreover, we show that there are continuous families of such mappings having infinitely many periodic points. For this purpose, we study the dynamics of the so-called replicator maps, depending on two parameters. Such studies are also motivated by the analysis of the dynamics of evolutionary games under selection. We prove the existence of hyperbolic chaos for the considered map and demonstrate that the average values are the same for all the periodic orbits.
Paper Structure (12 sections, 14 theorems, 99 equations, 2 figures)

This paper contains 12 sections, 14 theorems, 99 equations, 2 figures.

Table of Contents

  1. Introduction
  2. Shift functions and ergodic theory
  3. Bifurcations, chaotic invariant sets and the Misiurewicz problem.
  4. One-dimensional maps with fixed mean values of periodic orbits
  5. Basic properties of replicator maps
  6. Reparametrization
  7. Fixed points
  8. Recursive formula
  9. Critical points
  10. Symmetry
  11. Schwartzian derivative
  12. Chaotic dynamics, hyperbolic chaos

Key Result

Lemma 2.1

For any invariant measure $\mu$ and any $\psi \in H_C$ we have $\hat{\psi}=0$.

Figures (2)

  • Figure 5.1: The map $f_{8,1/3}$.
  • Figure 5.2: The graph of the map $g_{30,1/3}$.

Theorems & Definitions (35)

  • Lemma 2.1
  • proof
  • Lemma 2.2
  • proof
  • Proposition 2.3
  • proof
  • Lemma 2.4
  • proof
  • Theorem 2.5
  • proof
  • ...and 25 more