Stability of Boolean and continuous dynamics

Details Stability of Boolean and continuous dynamics Stability of Boolean and continuous dynamics

2011-03-23

arxiv.org/abs/1103.4490v3

Physics

Biological Physics

6 pages, 4 figures, accepted for publication in Phys. Rev. Lett

Scientific paper

Regulatory dynamics in biology is often described by continuous rate equations for continuously varying chemical concentrations. Binary discretization of state space and time leads to Boolean dynamics. In the latter, the dynamics has been called unstable if flip perturbations lead to damage spreading. Here we find that this stability classification strongly differs from the stability properties of the original continuous dynamics under small perturbations of the state vector. In particular, random networks of nodes with large sensitivity yield stable dynamics under small perturbations.

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