English

Strictly weak consensus in the uniform compass model on $\mathbb{Z}$

Probability 2019-09-20 v2

Abstract

We investigate a model for opinion dynamics, where individuals (modeled by vertices of a graph) hold certain abstract opinions. As time progresses, neighboring individuals interact with each other, and this interaction results in a realignment of opinions closer towards each other. This mechanism triggers formation of consensus among the individuals. Our main focus is on strong consensus (i.e. global agreement of all individuals) versus weak consensus (i.e. local agreement among neighbors). By extending a known model to a more general opinion space, which lacks a "central" opinion acting as a contraction point, we provide an example of an opinion formation process on the one-dimensional lattice with weak consensus but no strong consensus.

Cite

@article{arxiv.1904.12705,
  title  = {Strictly weak consensus in the uniform compass model on $\mathbb{Z}$},
  author = {Nina Gantert and Markus Heydenreich and Timo Hirscher},
  journal= {arXiv preprint arXiv:1904.12705},
  year   = {2019}
}

Comments

26 pages, 8 figures

R2 v1 2026-06-23T08:52:19.905Z