Current browse context:
physics.soc-ph
Change to browse by:
References & Citations
Physics > Physics and Society
Title: Constant-selection evolutionary dynamics on weighted networks
(Submitted on 25 Mar 2024)
Abstract: The population structure often impacts evolutionary dynamics. In constant-selection evolutionary dynamics between two types, amplifiers of selection are networks that promote the fitter mutant to take over the entire population, and suppressors of selection do the opposite. It has been shown that most undirected and unweighted networks are amplifiers of selection under a common updating rule and initial condition. Here, we extensively investigate how edge weights influence selection on undirected networks. We show that random edge weights make small networks less amplifying than the corresponding unweighted networks in a majority of cases and also make them suppressors of selection (i.e., less amplifying than the complete graph, or equivalently, the Moran process) in many cases. Qualitatively, the same result holds true for larger empirical networks. These results suggest that amplifiers of selection are not as common for weighted networks as for unweighted counterparts.
Submission history
From: Jnanajyoti Bhaumik [view email][v1] Mon, 25 Mar 2024 21:37:25 GMT (756kb,D)
Link back to: arXiv, form interface, contact.