Abstract
Abstract This paper deals with a kind of fourth degree systems with perturbations. By using the method of multi-parameter perturbation theory and qualitative analysis, it is proved that the system can have six limit cycles.
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*Project supported by the National Natural Science Foundation of China (No.10371072), the New Century Excellent Talents in University (No.NCET-04-038) and the Shanghai Leading Academic Discipline (No.T0401).
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Shang, D., Han, M. Global Bifurcation of a Perturbed Double-Homoclinic Loop*. Chin. Ann. Math. Ser. B 27, 425–436 (2006). https://doi.org/10.1007/s11401-004-0487-4
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DOI: https://doi.org/10.1007/s11401-004-0487-4