Math-Bio Seminar: "Fluctuation and fixation in the Axelrod model"

Mon, 05/16/2016 - 16:00 - 17:00
Nicolas Lanchier, Arizona State University

The Axelrod model is a spatial stochastic model for the dynamics of cultures which includes two key social components: homophily, the tendency of individuals to interact more frequently with individuals who are more similar, and social influence, the tendency of individuals to become more similar when they interact. Each individual is characterized by a collection of opinions about different issues, and pairs of neighbors interact at a rate equal to the number of issues for which they agree, which results in the interacting pair agreeing on one more issue. This model has been extensively studied during the past 15 years based on numerical simulations and heuristic arguments while there is a lack of analytical results. This talk gives rigorous fluctuation and fixation results for the one-dimensional system that sometimes confirm and sometimes refute some of the conjectures proposed by applied scientists.

318 Carolyn Lynch Lab