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Updated: Aug 14, 2026

The HoneyComb Paradigm for Research on Collective Human Behavior
Published on: January 19, 2019
Phase diagrams for an evolutionary prisoner's dilemma game on two-dimensional lattices
György Szabó1, Jeromos Vukov, Attila Szolnoki
1Research Institute for Technical Physics and Materials Science, P.O. Box 49, H-1525 Budapest, Hungary.
Abstract:
The effects of payoffs and noise on the maintenance of cooperative behavior are studied in an evolutionary prisoner's dilemma game with players located on the sites of different two-dimensional lattices. This system exhibits a phase transition from a mixed state of cooperators and defectors to a homogeneous one where only the defectors remain alive. Using Monte Carlo simulations and the generalized mean-field approximations we have determined the phase boundaries (critical points) separating the two phases on the plane of the temperature (noise) and temptation to choose defection. In the zero temperature limit the cooperation can be sustained only for those connectivity structures where three-site clique percolation occurs.
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