The Lattice of Synchrony Subspaces of a Coupled Cell Network: Characterization and Computation Algorithm |
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Authors: | Manuela A D Aguiar Ana Paula S Dias |
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Institution: | 1. Faculdade de Economia, Centro de Matemática, Universidade do Porto, Rua Dr Roberto Frias, 4200-464?, Porto, Portugal 2. Dep. Matemática, Centro de Matemática, Universidade do Porto, Rua do Campo Alegre, 687, 4169-007?, Porto, Portugal
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Abstract: | Coupled cell systems are networks of dynamical systems (the cells), where the links between the cells are described through the network structure, the coupled cell network. Synchrony subspaces are spaces defined in terms of equalities of certain cell coordinates that are flow-invariant for all coupled cell systems associated with a given network structure. The intersection of synchrony subspaces of a network is also a synchrony subspace of the network. It follows, then, that, given a coupled cell network, its set of synchrony subspaces, taking the inclusion partial order relation, forms a lattice. In this paper we show how to obtain the lattice of synchrony subspaces for a general network and present an algorithm that generates that lattice. We prove that this problem is reduced to obtain the lattice of synchrony subspaces for regular networks. For a regular network we obtain the lattice of synchrony subspaces based on the eigenvalue structure of the network adjacency matrix. |
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