Authors
Feng Shi, Peter J. Mucha, Richard Durrett
Publication date
2013/12/30
Journal
Physical Review E
Volume
88
Issue
6
Pages
062818
Publisher
American Physical Society
Description
We consider an idealized model in which individuals' changing opinions and their social network coevolve, with disagreements between neighbors in the network resolved either through one imitating the opinion of the other or by reassignment of the discordant edge. Specifically, an interaction between and one of its neighbors leads to imitating with probability and otherwise (i.e., with probability ) cutting its tie to in order to instead connect to a randomly chosen individual. Building on previous work about the two-opinion case, we study the multiple-opinion situation, finding that the model has infinitely many phase transitions (in the large graph limit with infinitely many initial opinions). Moreover, the formulas describing the end states of these processes are remarkably simple when expressed as a function of .
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