Evolution in Complex Systems

		/vol02/dgg94/	© Copyright 1995
		Volume 02	Received: Accepted:	---- ----

Evolution in Complex Systems David G. Green
Abstract
	Phase changes play a central role in the adaptation and self-organisation of many complex systems. Specifically I propose that external factors can cause a temporary phase change in the connectivity of a system. Different processes (selection and variation) predominate in each phase. The "chaotic edge" associated with the phase change may be an important source of variety in biological systems. The mechanism outlined here seems to occur in several kinds of biological systems, including species evolution and landscape ecology. Applications to evolutionary programming include parallel genetic algorithms that emulate population genetics on a landscape.

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