Hostname: page-component-76fb5796d-vvkck Total loading time: 0 Render date: 2024-04-27T00:34:29.383Z Has data issue: false hasContentIssue false

Interaction of homoclinic solutions and Hopf points in functional differential equations of mixed type

Published online by Cambridge University Press:  13 March 2009

Marc Georgi
Affiliation:
Institute of Mathematics I, Freie Universität Berlin, Arnimallee 7, 14195 Berlin, Germany (georgi@mi.fu-berlin.de)

Abstract

We study a homoclinic bifurcation in a general functional differential equation of mixed type. More precisely, we investigate the case when the asymptotic steady state of a homoclinic solution undergoes a Hopf bifurcation. Bifurcations of this kind are diffcult to analyse due to the lack of Fredholm properties. In particular, a straightforward application of a Lyapunov–Schmidt reduction is not possible.

As one of the main results we prove the existence of centre-stable and centre-unstable manifolds of steady states near homoclinic orbits. With their help, we can analyse the bifurcation scenario similar to the case for ordinary differential equations and can show the existence of solutions which bifurcate near the homoclinic orbit, are decaying in one direction and oscillatory in the other direction. These solutions can be visualized as an interaction of the homoclinic orbit and small periodic solutions that exist on account of the Hopf bifurcation, for exactly one asymptotic direction t→8 or t→−∞.

Type
Research Article
Copyright
Copyright © Royal Society of Edinburgh 2009

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)