Extremal dynamics model on evolving networks

Preprint

17 September 1999

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.cond-mat/9901275

Abstract

We investigate an extremal dynamics model of evolution with a variable number of units. Due to addition and removal of the units, the topology of the network evolves and the network splits into several clusters. The activity is mostly concentrated in the largest cluster. The time dependence of the number of units exhibits intermittent structure. The self-organized criticality is manifested by a power-law distribution of forward avalanches, but two regimes with distinct exponents tau = 1.98 +- 0.04 and tau^prime = 1.65 +- 0.05 are found. The distribution of extinction sizes obeys a power law with exponent 2.32 +- 0.05.

Keywords

All Related Versions

Version 1, 1999-01-26, ArXiv
Version 2, 1999-09-17, ArXiv
Published version: Physical Review Letters, 83 (26), 5587.

This publication has 0 references indexed in Scilit: