Abstract
Software for the Apple Macintosh microcomputer has been developed using the harmonic balance method for the detection of periodic solutions of feedback systems. This software, based on graphical criteria, also provides a good notion of the system’s dynamics and the way bifurcations occur, as well as the stability characteristics of the limit cycles. Here we report the results of its application to the FitzHugh equations for the nerve impulse. We numerically detect periodic solutions and global bifurcation points that, although theoretically predicted, had never been located. We describe amplitude, frequency and stability characteristics for these solutions, as well as the type and location of the bifurcation points.
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References
R. FitzHugh, Impulses and physiological states in theoretical models of nerve membrane, Biophys. J. 1: 445–466 (1961).
A. Gelb and W. van der Velde, Multiple-input Describing Functions and Nonlinear System Design, McGraw-Hill (1968).
Isabel S. Labouriau and Nelma R.A. Moreira, Solucões Periódicas das equacões de FitzHugh para o impulso nervoso, VII Congresso dos Matematicos de Expressão Latina (1985).
Alistair Mees, Dynamics of Feedback Systems. John Wiley (1981).
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© 1987 Springer Science+Business Media New York
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Rosário, M., Álvares-Ribeiro, L.M.S. (1987). Periodic Solutions and Global Bifurcations for Nerve Impulse Equations. In: Degn, H., Holden, A.V., Olsen, L.F. (eds) Chaos in Biological Systems. NATO ASI Series, vol 138. Springer, Boston, MA. https://doi.org/10.1007/978-1-4757-9631-5_12
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DOI: https://doi.org/10.1007/978-1-4757-9631-5_12
Publisher Name: Springer, Boston, MA
Print ISBN: 978-1-4757-9633-9
Online ISBN: 978-1-4757-9631-5
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