Hostname: page-component-7b7567c8c-wxvwp Total loading time: 0 Render date: 2026-11-15T14:01:17.457Z Has data issue: false hasContentIssue false

Invariant circles in the Bogdanov-Takens bifurcation for diffeomorphisms

Published online by Cambridge University Press:  14 October 2010

Henk Broer
Affiliation:
Afdeling Wiskunde en Informatica, Rijksuniversiteit Groningen, Postbus 800, 9700 AV Groningen, The Netherlands
Robert Roussarie
Affiliation:
Laboratoire de Topologie, CNRS, UA755, Université de Bourgogne, BP 138, 21004 Dijon, France
Carles Simó
Affiliation:
Departament de Matemàtica Aplicada i Anàlisi, Universitat de Barcelona, Gran Via 585, 08007 Barcelona, Spain

Abstract

We study a generic, real analytic unfolding of a planar diffeomorphism having a fixed point with unipotent linear part. In the analogue for vector fields an open parameter domain is known to exist, with a unique limit cycle. This domain is bounded by curves corresponding to a Hopf bifurcation and to a homoclinic connection. In the present case of analytic diffeomorphisms, a similar domain is shown to exist, with a normally hyperbolic invariant circle. It follows that all the ‘interesting’ dynamics, concerning the destruction of the invariant circle and the transition to trivial dynamics by the creation and death of homoclinic points, takes place in an exponentially small part of the parameter-plane. Partial results were stated in [5]. Related numerical results appeared in [16].

Information

Type
Research Article
Copyright
Copyright © Cambridge University Press 1996

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.)

Article purchase

Temporarily unavailable