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Gradient systems on coupled cell networks

Manoel, M and Roberts, M (2015) Gradient systems on coupled cell networks NONLINEARITY, 28 (10). pp. 3487-3509.

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Abstract

For networks of coupled dynamical systems we characterize admissible functions, that is, functions whose gradient is an admissible vector field. The schematic representation of a gradient network dynamical system is of an undirected cell graph, and we use tools from graph theory to deduce the general form of such functions, relating it to the topological structure of the graph defining the network. The coupling of pairs of dynamical systems cells is represented by edges of the graph, and from spectral graph theory we detect the existence and nature of equilibria of the gradient system from the critical points of the coupling function. In particular, we study fully synchronous and 2- state patterns of equilibria on regular graphs.These are two special types of equilibrium configurations for gradient networks. We also investigate equilibrium configurations of S 1 -invariant admissible functions on a ring of cells.

Item Type: Article
Divisions : Faculty of Engineering and Physical Sciences > Mathematics
Authors :
AuthorsEmailORCID
Manoel, MUNSPECIFIEDUNSPECIFIED
Roberts, MUNSPECIFIEDUNSPECIFIED
Date : 1 October 2015
Identification Number : https://doi.org/10.1088/0951-7715/28/10/3487
Copyright Disclaimer : Copyright 2015 Institute of Physics
Uncontrolled Keywords : Science & Technology, Physical Sciences, Mathematics, Applied, Physics, Mathematical, Mathematics, Physics, network, undirected graph, gradient vector field, admissible function, critical point, SYMMETRY GROUPOIDS, XY-MODEL, DYNAMICS, OSCILLATORS, SYNCHRONY, GRAPHS, FIELD
Related URLs :
Depositing User : Symplectic Elements
Date Deposited : 02 Nov 2016 18:26
Last Modified : 02 Nov 2016 18:26
URI: http://epubs.surrey.ac.uk/id/eprint/812121

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