2 papers
cond-mat.stat-mech2026
Exact log-odds representation and mean-field criticality of a growing social group model
Xingfu Ke, Fanyuan Meng
We present an exact analytical reformulation of a growing social group model -- a Hamiltonian-free nonequilibrium process in which a group grows by noisy, consensus-driven admissio…
physics.soc-ph2025
Adaptive Punishment in Social Dilemmas
Xingfu Ke, Hao Yu, Xiao-Pu Han +2
We introduce a coevolutionary framework in which punishment intensity dynamically adapts to the fraction of cooperators in the population. Unlike static models, adaptive punishment…