The Cyclicity of the Period Annulus of t
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Yulin Zhao; Zhaojun Liang; Gang Lu
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Article
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2000
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Elsevier Science
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English
β 276 KB
In this paper, we investigate the quadratic Hamiltonian systems with non-Morsean point. It is proved that in this situation the cyclicity of the period annulus under quadratic perturbations is equal to two.