Lyapunov Exponents and Sensitive Dependence

Huseyin Kocak, Kenneth J. Palmer

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

Precise relationships between Lyapunov exponents and the instability/stability of orbits of scalar discrete dynamical systems are investigated. It is known that positive Lyapunov exponent does not, in general, imply instability, or, equivalently, sensitive dependence on initial conditions. A notion of strong Lyapunov exponent is introduced and it is proved that for continuously differentiable maps on an interval, a positive strong Lyapunov exponent implies sensitive dependence on initial conditions. However, to have a strong Lyapunov exponent an orbit must stay away from critical points. Nevertheless, it is shown for a restricted class of maps that a positive Lyapunov exponent implies sensitive dependence even for orbits which go arbitrarily close to critical points. Finally, it is proved that for twice differentiable maps on an interval negative Lyapunov exponent does imply exponential stability of orbits.

Original languageEnglish (US)
Pages (from-to)381-398
Number of pages18
JournalJournal of Dynamics and Differential Equations
Volume22
Issue number3
DOIs
StatePublished - 2010

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Lyapunov Exponent
Orbit
Imply
Critical point
Initial conditions
Interval
Discrete Dynamical Systems
Continuously differentiable
Exponential Stability
Differentiable
Scalar

Keywords

  • Chaos
  • Chaotic orbits
  • Lyapunov exponent
  • Sensitive dependence
  • Strong Lyapunov exponent

ASJC Scopus subject areas

  • Analysis

Cite this

Lyapunov Exponents and Sensitive Dependence. / Kocak, Huseyin; Palmer, Kenneth J.

In: Journal of Dynamics and Differential Equations, Vol. 22, No. 3, 2010, p. 381-398.

Research output: Contribution to journalArticle

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