The Relative Lyapunov Indicator: An Efficient Method of Chaos Detection

  • Zsolt Sándor
  • Bálint Érdi
  • András Széll
  • Barbara Funk


A recently introduced chaos detection method, the relative Lyapunov indicator (RLI) is investigated in the cases of symplectic mappings and of a continuous Hamiltonian system. It is shown that the RLI is an efficient and easy-to-calculate numerical tool in determining the true nature of individual orbits, and in separating ordered and regular regions of the phase space of dynamical systems. An application of the RLI for stability investigations of some recently discovered exoplanetary systems is also presented.

chaos detection exoplanetary systems Lyapunov indicators 


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Copyright information

© Kluwer Academic Publishers 2004

Authors and Affiliations

  • Zsolt Sándor
    • 1
  • Bálint Érdi
    • 1
  • András Széll
    • 2
    • 3
  • Barbara Funk
    • 4
  1. 1.Department of AstronomyEötvös University H-1117 BudapestHungary, e-mail
  2. 2.School of Computing and Mathematical SciencesGlasgow Caledonian UniversityU.K
  3. 3.Department of AstronomyRutgers UniversityNew BrunswickU.S.A
  4. 4.Institute for AstronomyUniversity of ViennaViennaAustria

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