English

q-deformed evolutionary dynamics in simple matrix games

Physics and Society 2025-01-14 v1 Statistical Mechanics Populations and Evolution

Abstract

We consider evolutionary games in which the agent selected for update compares their payoff to q neighbours, rather than a single neighbour as in standard evolutionary game theory. Through studying fixed point stability and fixation times for 2x2 games with all-to-all interactions, we find that the flow changes significantly as a function of q. Further, we investigate the effects of changing the underlying topology from an all-to-all interacting system to an uncorrelated graph via the pair approximation. We also develop the framework for studying games with more than two strategies, such as the rock-paper-scissors game where we show that changing q leads to the emergence of new types of flow.

Keywords

Cite

@article{arxiv.2407.16380,
  title  = {q-deformed evolutionary dynamics in simple matrix games},
  author = {Christopher R. Kitching and Tobias Galla},
  journal= {arXiv preprint arXiv:2407.16380},
  year   = {2025}
}

Comments

12 + 21 pages, 10 + 8 figures

R2 v1 2026-06-28T17:50:43.558Z