A system model of three-body interactions in complex networks: Consensus and conservation

Shang, Yilun (2022) A system model of three-body interactions in complex networks: Consensus and conservation. Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, 478 (2258). p. 20210564. ISSN 1364-5021

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Official URL: https://doi.org/10.1098/rspa.2021.0564


Networked complex systems in a wide range of physics, biology and social sciences involve synergy among multiple agents beyond pairwise interactions. Higher-order mathematical structures such as hypergraphs have been increasingly popular in modelling and analysis of complex dynamical behaviors. Here, we study a simple three-body consensus model, which favorably incorporates higher-order network interactions, higher-order dimensional states, group reinforcement ef fect as well as social homophily principle. The model features asymmetric roles of acting agents using modulating functions. We analytically establish suf ficient conditions for nonlinear consensus and conservation of states for agents with both discrete-time and continuous-time dynamics. We show that higher-order interactions encoded in three-body edges give rise to consensus and conservation for systems with gravitylike and Heaviside-like modulating functions. Furthermore, we illustrate our theoretical results with numerical simulations and examine the system convergence time through a network depreciation process.

Item Type: Article
Uncontrolled Keywords: higher-order interaction, higher-dimension, complex network, consensus, conservation law, nonlinear dynamics
Subjects: G400 Computer Science
H600 Electronic and Electrical Engineering
Department: Faculties > Engineering and Environment > Computer and Information Sciences
Depositing User: Rachel Branson
Date Deposited: 12 Jan 2022 15:54
Last Modified: 04 Mar 2022 16:45
URI: http://nrl.northumbria.ac.uk/id/eprint/48149

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