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Carpio Rodríguez, Ana María Bonilla, Luis L. 2023-06-20T16:50:38Z 2023-06-20T16:50:38Z 2002 Carpio Rodríguez, A. M. y Bonilla, L. L. «Pulse Propagation in Discrete Systems of Coupled Excitable Cells». SIAM Journal on Applied Mathematics, vol. 63, n.o 2, enero de 2003, pp. 619-35. DOI.org (Crossref), https://doi.org/10.1137/S0036139901391732. 0036-1399 10.1137/S0036139901391732 https://hdl.handle.net/20.500.14352/57208 https://doi.org/10.1137/S0036139901391732 http://www.siam.org/journals/siap/63-2/39173.html Propagation of pulses in myelinated fibers may be described by appropriate solutions of spatially discrete FitzHugh-Nagumo systems. In these systems, propagation failure may occur if either the coupling between nodes is not strong enough or the recovery is too fast. We give an asymptotic construction of pulses for spatially discrete FitzHugh-Nagumo systems, which agrees well with numerical simulations, and discuss the evolution of initial data into pulses and pulse generation at a boundary. Formulas for the speed and length of pulses are also obtained. eng open access Pulse propagation in discrete systems of coupled excitable cells journal article