## Abstract

The authors consider a class of fourth-order, reversible, autonomous Hamiltonian systems for which an orbit homoclinic to a node on the stable manifold is known to exist. If parameters are varied so that on the stable manifold the node become a focus (i.e. when 4 real eigenvalues become complex) it is shown that generic homoclinic orbits of systems in this class bifurcate into a countably infinite set of distinct symmetric homoclinic orbits. As an application they show that the problem du(t)Pu(t)+u(t)-u(t)^{2}=0, u(0)=du(0)=0, u not=0, u(+or- infinity )=u(+or- infinity )=u(+or- infinity )=du(+or- infinity )=0 which has a unique (up to translations) solution, of large amplitude, for P<or=-2 has a countably infinite set of distinct large amplitude solutions for each P in (-2, -2+ in ) for some in >0. For P in (2- in ,2) it has at least two small amplitude solutions and for all P<2 it has at least one solution.

Original language | English |
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Article number | 002 |

Pages (from-to) | 665-721 |

Number of pages | 57 |

Journal | Nonlinearity |

Volume | 6 |

Issue number | 5 |

DOIs | |

Publication status | Published - 1 Dec 1993 |

## ASJC Scopus subject areas

- Statistical and Nonlinear Physics
- Mathematical Physics
- General Physics and Astronomy
- Applied Mathematics