Routes to Cooperation and Herding Effects in the Prisoner's Dilemma Game (2009)
Game theory formalizes interactions between living beings in biology, sociology, and economics, or even between physical particles [D. Helbing, T. Vicsek, New J. of Phys. 1, 13.1 (1999)] and...
Synchronization in symmetric bipolar population networks (2009)
Buzna, Lubos, Lozano, Sergi, Diaz-Guilera, Albert
We analyze populations of Kuramoto oscillators with a particular distribution of natural frequencies. Inspired by networks where there are two groups of nodes with opposite behaviors, as for instance...
Lozano, Sergi, Borge, Javier, Arenas, Alex, Molina, Jose Luis
Nadel's Paradox states that it is not possible to take into account simultaneously cultural and relational dimensions of social structure. By means of a simple computational model, the authors...
A Model to Test How Diversity Affects Resilience in Regional Innovation Networks (2007)
Lozano, Sergi, Arenas, Alexandre
Research about resilience on complex systems has been commonly addressed from a structural point of view, relating this concept to the preservation of the connectivity against the suppression of...
Amplified signal response in scale-free networks by collaborative signaling (2007)
Acebron, Juan A., Lozano, Sergi, Arenas, Alex
Many natural and artificial two-states signaling devices are connected forming networks. The information-processing potential of these systems is usually related to the response to weak external...
Mesoscopic structure conditions the emergence of cooperation on social networks (2006)
Lozano, Sergi, Arenas, Alex, Sanchez, Angel
We study the evolutionary Prisoner's Dilemma on two social networks obtained from actual relational data. We find very different cooperation levels on each of them that can not be easily understood...
A Model to Test How Diversity Affects Resilience in Regional Innovation Networks
Sergi Lozano, Alexandre Arenas
Research about resilience on complex systems has been commonly addressed from a structural point of view, relating this concept to the preservation of the connectivity against the suppression of...
Community connectivity and heterogeneity: clues and insights on cooperation on social networks
Sergi Lozano, Alex Arenas, Angel Sánchez
Cooperation, Social networks, Community structure, Resilience, Prisoner’s dilemma, C72, C73, L2, M54,