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The FitzHugh-Nagumo Model

Bifurcation and Dynamics

  • C. Rocşoreanu
  • A. Georgescu
  • N. Giurgiţeanu

Part of the Mathematical Modelling: Theory and Applications book series (MMTA, volume 10)

Table of contents

  1. Front Matter
    Pages i-xii
  2. C. Rocşoreanu, A. Georgescu, N. Giurgiţeanu
    Pages 1-52
  3. C. Rocşoreanu, A. Georgescu, N. Giurgiţeanu
    Pages 53-95
  4. C. Rocşoreanu, A. Georgescu, N. Giurgiţeanu
    Pages 97-148
  5. C. Rocşoreanu, A. Georgescu, N. Giurgiţeanu
    Pages 149-177
  6. C. Rocşoreanu, A. Georgescu, N. Giurgiţeanu
    Pages 179-219
  7. Back Matter
    Pages 221-236

About this book

Introduction

The present monograph analyses the FitzHugh-Nagumo (F-N) model Le. , the Cauchy problem for some generalized Van der Pol equation depending on three real parameters a, band c. This model, given in (1. 1. 17), governs the initiation of the cardiac impulse. The presence of the three parameters leads to a large variety of dy­ namics, each of them responsible for a specific functioning of the heart. For physiologists it is highly desirable to have aglobai view of all possible qualitatively distinct responses of the F-N model for all values of the pa­ rameters. This reduces to the knowledge of the global bifurcation diagram. So far, only a few partial results appeared and they were spread through­ out the literature. Our work provides a more or less complete theoretical and numerical investigation of the complex phase dynamics and bifurca­ tions associated with the F-N dynamical system. This study includes the static and dynamic bifurcations generated by the variation of a, band c and the corresponding oscillations, of special interest for applications. It enables one to predict all possible types of initiations of heart beats and the mechanism of transformation of some types of oscillations into others by following the dynamics along transient phase space trajectories. Of course, all these results hold for the F-N model. The global phase space picture enables one to determine the domain of validity of this model.

Keywords

behavior biology cell cell membrane dynamics electrophysiology mathematics ordinary differential equation physiology

Authors and affiliations

  • C. Rocşoreanu
    • 1
  • A. Georgescu
    • 2
  • N. Giurgiţeanu
    • 3
  1. 1.Department of MathematicsUniversity of CraiovaCraiovaRomania
  2. 2.Department of MathematicsUniversity of PiteştiPiteştiRomania
  3. 3.Department of EconomicsUniversity of CraiovaCraiovaRomania

Bibliographic information

  • DOI https://doi.org/10.1007/978-94-015-9548-3
  • Copyright Information Springer Science+Business Media B.V. 2000
  • Publisher Name Springer, Dordrecht
  • eBook Packages Springer Book Archive
  • Print ISBN 978-90-481-5512-5
  • Online ISBN 978-94-015-9548-3
  • Series Print ISSN 1386-2960
  • Buy this book on publisher's site