Abstract
In this paper, we find a special class of homoclinic solutions which tend to 0 as t → ±∞, for a Liénard type system with a time-dependent force. Since it is not a small perturbation of a Hamiltonian system, we cannot employ the well-known Melnikov method to determine the existence of homoclinic solutions. We use a sequence of periodically forced systems to approximate the considered system, and find their periodic solutions. We prove that the sequence of those periodic solutions has an accumulation which gives an homoclinic solution of the forced Liénard type system.
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A project supported by Scientific Research Fund of Sichuan Provincial Education Department(08ZA132).
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Zhang, Y. Homoclinic Solutions for a Forced Liénard Type System. Results. Math. 57, 69–78 (2010). https://doi.org/10.1007/s00025-009-0005-9
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DOI: https://doi.org/10.1007/s00025-009-0005-9