Convergent analytic solutions for homoclinic orbits in reversible and non-reversible systems

    Authors

    S. R. Choudhury;G. Gambino

    Comments

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    Abbreviated Journal Title

    Nonlinear Dyn.

    Keywords

    Homoclinic orbits; Shil'nikov analysis; Reversible and non-reversible; systems; Traveling wave solution; SMALL PERIODIC-ORBITS; EMBEDDED SOLITONS; VECTOR-FIELDS; WATER-WAVES; EQUATIONS; PULSES; SINKS; Engineering, Mechanical; Mechanics

    Abstract

    In this paper, convergent, multi-infinite, series solutions are derived for the homoclinic orbits of a canonical fourth-order ODE system, in both reversible and non-reversible cases. This ODE includes traveling-wave reductions of many important non-linear PDEs or PDE systems, for which these analytical solutions would correspond to regular or localized pulses of the PDE. As such, the homoclinic solutions derived here are clearly topical, and they are shown to match closely to earlier results obtained by homoclinic numerical shooting. In addition, the results for the non-reversible case go beyond those that have been typically considered in analyses conducted within bifurcation-theoretic settings. We also comment on generalizing the treatment here to parameter regimes where solutions homoclinic to exponentially small periodic orbits are known to exist, as well as another possible extension placing the solutions derived here within the framework of a comprehensive categorization of ALL possible traveling-wave solutions, both smooth and non-smooth, for our governing ODE.

    Journal Title

    Nonlinear Dynamics

    Volume

    73

    Issue/Number

    3

    Publication Date

    1-1-2013

    Document Type

    Article

    Language

    English

    First Page

    1769

    Last Page

    1782

    WOS Identifier

    WOS:000322014200047

    ISSN

    0924-090X

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