Synchronization in discrete-time networks with general pairwise coupling

Frank Bauer, Fatihcan M. Atay, and Jürgen Jost

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Submission date: 10. Sep. 2009
Pages: 24
published in: Nonlinearity, 22 (2009) 10, p. 2333-2351 
DOI number (of the published article): 10.1088/0951-7715/22/10/001
Bibtex
MSC-Numbers: 05C50, 37D45, 37E05, 39A11
PACS-Numbers: 05.45.-a, 05.45.Ra, 05.45.Xt
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Abstract:
We consider complete synchronization of identical maps coupled through a general interaction function and in a general network topology where the edges may be directed and may carry both positive and negative weights. We define mixed transverse exponents and derive sufficient conditions for local complete synchronization. The general non-diffusive coupling scheme can lead to new synchronous behavior, in networks of identical units, that cannot be produced by single units in isolation. In particular, we show that synchronous chaos can emerge in networks of simple units. Conversely, in networks of chaotic units simple synchronous dynamics can emerge; that is, chaos can be suppressed through synchrony.