Spectral properties and pattern selection in fractal growth networks

Details Spectral properties and pattern selection in fractal growth networks Spectral properties and pattern selection in fractal growth networks

2003-12-08

arxiv.org/abs/nlin/0312017v1

Physica D 199, 91 (2004)

Nonlinear Sciences

Pattern Formation and Solitons

9 pages, 6 Figs, Submitted to Physica D

Scientific paper

10.1016/j.physd.2004.08.005

A model for the generation of fractal growth networks in Euclidean spaces of arbitrary dimension is presented. These networks are considered as the spatial support of reaction-diffusion and pattern formation processes. The local dynamics at the nodes of a fractal growth network is given by a nonlinear map, giving raise to a coupled map system. The coupling is described by a matrix whose eigenvectors constitute a basis on which spatial patterns on fractal growth networks can be expressed by linear combination. The spectrum of eigenvalues the coupling matrix exhibits a nonuniform distribution that is reflected in the presence of gaps or niches in the boundaries of stability of the synchronized states on the space of parameters of the system. These gaps allow for the selection of specific spatial patterns by appropriately varying the parameters of the system.

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