Reliability of Coupled Oscillators II: Larger Networks

Details Reliability of Coupled Oscillators II: Larger Networks Reliability of Coupled Oscillators II: Larger Networks

2007-08-22

arxiv.org/abs/0708.3063v2

Nonlinear Sciences

Chaotic Dynamics

Part 2 of 2. Part 1 can be found at 0708.3061

Scientific paper

We study the reliability of phase oscillator networks in response to fluctuating inputs. Reliability means that an input elicits essentially identical responses upon repeated presentations, regardless of the network's initial condition. In this paper, we extend previous results on two-cell networks to larger systems. The first issue that arises is chaos in the absence of inputs, which we demonstrate and interpret in terms of reliability. We give a mathematical analysis of networks that can be decomposed into modules connected by an acyclic graph. For this class of networks, we show how to localize the source of unreliability, and address questions concerning downstream propagation of unreliability once it is produced.

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