Interplay between function and structure in complex networks.

  title={Interplay between function and structure in complex networks.},
  author={Timothy C. Jarrett and Douglas J. Ashton and Mark D. Fricker and Neil F. Johnson},
  journal={Physical review. E, Statistical, nonlinear, and soft matter physics},
  volume={74 2 Pt 2},
We show that abrupt structural transitions can arise in functionally optimal networks, driven by small changes in the level of transport congestion. Our results offer an explanation as to why so many diverse species of network structure arise in nature (e.g., fungal systems) under essentially the same environmental conditions. Our findings are based on an exactly solvable model system which mimics a variety of biological and social networks. We then extend our analysis by introducing a… CONTINUE READING

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