Many social, biological, and economic systems can be approached by complex networks of interacting units. In many of these systems relations are directed in the sense that links act only in one direction (outwards or inwards). We investigate the effect of directed links on the behavior of a simple spin-like model evolving on a small-world network. This model may describe for instance the dynamics of public opinion in social influence networks. We show that directed networks may lead to a highly nontrivial phase diagram including first- and second-order phase transitions out of equilibrium.
%0 Journal Article
%1 Sanchez2002
%A Sánchez, Alejandro D.
%A López, Juan M.
%A Rodríguez, Miguel A.
%D 2002
%I American Physical Society
%J Phys. Rev. Lett.
%K directed-networks graphs networks phase-transition voter-model
%N 4
%P 048701
%R 10.1103/PhysRevLett.88.048701
%T Nonequilibrium Phase Transitions in Directed Small-World Networks
%V 88
%X Many social, biological, and economic systems can be approached by complex networks of interacting units. In many of these systems relations are directed in the sense that links act only in one direction (outwards or inwards). We investigate the effect of directed links on the behavior of a simple spin-like model evolving on a small-world network. This model may describe for instance the dynamics of public opinion in social influence networks. We show that directed networks may lead to a highly nontrivial phase diagram including first- and second-order phase transitions out of equilibrium.
@article{Sanchez2002,
abstract = {Many social, biological, and economic systems can be approached by complex networks of interacting units. In many of these systems relations are directed in the sense that links act only in one direction (outwards or inwards). We investigate the effect of directed links on the behavior of a simple spin-like model evolving on a small-world network. This model may describe for instance the dynamics of public opinion in social influence networks. We show that directed networks may lead to a highly nontrivial phase diagram including first- and second-order phase transitions out of equilibrium.},
added-at = {2011-01-13T13:26:31.000+0100},
author = {Sánchez, Alejandro D. and López, Juan M. and Rodríguez, Miguel A.},
biburl = {https://www.bibsonomy.org/bibtex/22599952a4883e0d34bc1a96145ec6958/rincedd},
doi = {10.1103/PhysRevLett.88.048701},
file = {Sanchez2002 - Nonequilibrium Phase Transitions in Directed Small-World Networks.pdf:Contact Processes/Sanchez2002 - Nonequilibrium Phase Transitions in Directed Small-World Networks.pdf:PDF},
groups = {public},
interhash = {bb2c72c185e47a12aa01fba0fbdebe23},
intrahash = {2599952a4883e0d34bc1a96145ec6958},
journal = {Phys. Rev. Lett.},
keywords = {directed-networks graphs networks phase-transition voter-model},
number = 4,
pages = 048701,
publisher = {American Physical Society},
timestamp = {2011-04-05T11:55:57.000+0200},
title = {Nonequilibrium Phase Transitions in Directed Small-World Networks},
username = {rincedd},
volume = 88,
year = 2002
}