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Pulse propagation in discrete systems of coupled excitable cells


Carpio, Ana y Bonilla, L.L. (2002) Pulse propagation in discrete systems of coupled excitable cells. SIAM Journal on applied mathematics, 63 (2). pp. 619-635. ISSN 0036-1399

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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.

Tipo de documento:Artículo
Palabras clave:Discrete reaction-diffusion equations, traveling wave pulses, propagation failure, spatially discrete FitzHugh–Nagumo system
Materias:Ciencias > Matemáticas > Estadística matemática
Ciencias > Matemáticas > Ecuaciones diferenciales
Código ID:15044

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Depositado:27 Abr 2012 09:09
Última Modificación:28 Oct 2016 08:29

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