Discrete Dynamics in Nature and Society
Volume 1 (1997), Issue 1, Pages 1-8
doi:10.1155/S1026022697000022

Discrete dynamics of complex systems

Hermann Haken

Institute for Theoretical Physics and Synergetics, University of Stuttgart, Pfaffenwaldring 57/4, Stuttgart D-70550, Germany

Abstract

This article extends the slaving principle of synergetics to processes with discrete time steps. Starting point is a set of nonlinear difference equations which contain multiplicative noise and which refer to multidimensional state vectors. The system depends on a control parameter. When its value is changed beyond a critical value, an instability of the solution occurs. The stability analysis allows us to divide the system into stable and unstable modes. The original equations can be transformed to a set of difference equations for the unstable and stable modes. The extension of the slaving principle to the time-discrete case then states that all the stable modes can be explicitly expressed by the unstable modes or so-called order-parameters.