Dresden 2011 – wissenschaftliches Programm

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SOE: Fachverband Physik sozio-ökonomischer Systeme

SOE 11: Poster Session

SOE 11.16: Poster

Dienstag, 15. März 2011, 18:05–18:45, P2

Contact processes on directed adaptive networks — Michael Seißinger, •Gerd Zschaler, Güven Demirel, and Thilo Gross — Max-Planck-Institut für Physik komplexer Systeme, Dresden

We propose the application of directed adaptive networks in models of opinion formation and epidemic spreading to capture the effect of asymmetry in real-world relationships. In our approach, agents can rewire their out-going connections while leaving the network's out-degree distribution fixed. Thus, the influence of different realistic out-degree distributions on the adaptive network dynamics can be investigated. As the out-degree distribution remains constant in time, it can be taken into account in a low-dimensional approximate ODE description in terms of its moments. Here we discuss the case of the voter model on directed adaptive networks. In this example, we observe a transition between an active and an absorbing phase at a critical rewiring rate, which depends on the first moments of the out-degree distribution.