Ultradiscrete Bifurcations for One Dimensional Dynamical Systems
Chaotic Dynamics
2021-02-03 v3 Mathematical Physics
math.MP
Exactly Solvable and Integrable Systems
Abstract
Bifurcations of one dimensional dynamical systems are discussed based on some ultradiscrete equations. The ultradiscrete equations are derived from normal forms of one-dimensional nonlinear differential equations, each of which has saddle-node, transcritical, or supercritical pitchfork bifurcations. An additional bifurcation, which is similar to flip bifurcation, is found in ultradiscrete equations for supercritical pitchfork bifurcation. Dynamical properties of these ultradiscrete bifurcations can be characterized with graphical analysis. As an example of application of our treatment, we focus on an ultradiscrete equation of FitzHugh-Nagumo model, and discuss its dynamical properties.
Keywords
Cite
@article{arxiv.2004.13224,
title = {Ultradiscrete Bifurcations for One Dimensional Dynamical Systems},
author = {Shousuke Ohmori and Yoshihiro Yamazaki},
journal= {arXiv preprint arXiv:2004.13224},
year = {2021}
}