Abstract
This paper considers the second-order differential difference equation
with the constant delay τ > 0 and the piecewise constant function \(f:\mathbb{R} \to \{ a,b\} \) with
Differential equations of this type occur in control systems, e.g., in heating systems and the pupil light reflex, if the controlling function is determined by a constant delay τ > 0 and the switch recognizes only the positions “on” [f(>) = a] and “off” [f(>) = b], depending on a constant threshold value Θ. By the nonsmooth nonlinearity the differential equation allows detailed analysis. It turns out that there is a rich solution structure. For a fixed set of parameters a, b, Θ, τ, infinitely many different periodic orbits of different minimal periods exist. There may be coexistence of three asymptotically stable periodic orbits (“multistability of limit cycles”). Stability or instability of orbits can be proven.
Similar content being viewed by others
REFERENCES
an der Heiden, U. (1992). On higher order nonlinear differential-difference equations. In Wiener, J., and Hale, J. K. (eds.), Ordinary and Delay Differential Equations, Longman. New York, pp. 73–79.
an der Heiden U., and Reichard, K. (1992). Multitude of oscillatory behaviour in a nonlinear second order differential-difference equation. ZAMM Z. angew. Math. Mech. 70, T621–T624.
an der Heiden, U., Longtin, A., Mackey, M. C., Milton, J. G., and Scholl, R. (1990). Oscillatory modes in a nonlinear second-order differential equation with delay. J. Dynam. Diff. Eq. 2, 423–449.
Campbell, S. A. and LeBlanc, V. G. (1997). Resonant Hopf-Hopf interactions in delay differential equations (in press).
Campbell, S. A., Bélair, J., Ohira, T., and Milton J. (1995). Limit cycles, tori and complex dynamics in a second-order differential equation with delayed negative feedback. J. Dynam. Diff. Eq. 7, 213–236.
Hale, J. K., and Ivanov, A. F. (1993). On higher order differential delay equations. Math. Anal. Appl. 173, 505–514.
Milton, J., and Longtin, A. (1990). Clamping the pupil light reflex with external feedback: Evaluation of constriction and dilation from cycling measurements. Vision Res. 30, 515–525.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Bayer, W., an der Heiden, U. Oscillation Types and Bifurcations of a Nonlinear Second-Order Differential-Difference Equation. Journal of Dynamics and Differential Equations 10, 303–326 (1998). https://doi.org/10.1023/A:1022670017537
Issue Date:
DOI: https://doi.org/10.1023/A:1022670017537