Asymptotic synchronization in lattices of coupled nonidentical Lorenz equations

Chuang Hsiung Chiu*, Wen-Wei Lin, Chen Chang Peng

*Corresponding author for this work

Research output: Contribution to journalArticle

29 Scopus citations

Abstract

In this paper we study coupled nonidentical Lorenz equations with three different boundary conditions. Coupling rules and boundary conditions play essential roles in the qualitative analysis of solutions of coupled systems. By using Lyapunov stability theory, a sufficient condition is obtained for the global stability of trivial equilibrium of coupled system with Dirichlet condition. Then we restrict our attention on the dynamics of coupled nonidentical Lorenz equations with Neumann/periodic boundary condition and prove that the asymptotic synchronization occurs provided the coupling strengths are sufficiently large. That is, the difference between any two components of solution is bounded by the quantity O(ε / max{c1, c2, c3}) as t → ∞, where ε is the maximal deviation of parameters of nonidentical Lorenz equations, and c1, c2 and c3 are the specified coupling strengths.

Original languageEnglish
Pages (from-to)2717-2728
Number of pages12
JournalInternational Journal of Bifurcation and Chaos in Applied Sciences and Engineering
Volume10
Issue number12
DOIs
StatePublished - 1 Jan 2000

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