Entropy (Mar 2020)

Investigation of Early Warning Indexes in a Three-Dimensional Chaotic System with Zero Eigenvalues

  • Lianyu Chen,
  • Fahimeh Nazarimehr,
  • Sajad Jafari,
  • Esteban Tlelo-Cuautle,
  • Iqtadar Hussain

DOI
https://doi.org/10.3390/e22030341
Journal volume & issue
Vol. 22, no. 3
p. 341

Abstract

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A rare three-dimensional chaotic system with all eigenvalues equal to zero is proposed, and its dynamical properties are investigated. The chaotic system has one equilibrium point at the origin. Numerical analysis shows that the equilibrium point is unstable. Bifurcation analysis of the system shows various dynamics in a period-doubling route to chaos. We highlight that from the evaluation of the entropy, bifurcation points can be predicted by identifying early warning signals. In this manner, bifurcation points of the system are analyzed using Shannon and Kolmogorov-Sinai entropy. The results are compared with Lyapunov exponents.

Keywords