Recently Stewart and Golubitsky have formulated a general approach to the study of networks of coupled cells. Their approach depends on groupoids, graphs and `quotient networks'. We present a combinatorial approach to coupled cell systems. While largely equivalent to that of Stewart et al., our approach is motivated by ideas coming from analog computers and avoids abstract algebraic formalism.

For preprint, email: mikefield@gmail.com

Professor Mike Field
Department of Mathematics
Imperial College
London SW7 2AZ