Sufficient and Necessary Center Conditions for the Poincaré Systems P(2, 2n)(n ≤ 5)
Jinya Xu and
Zhengyi Lu
Journal of Applied Mathematics, 2011, vol. 2011, issue 1
Abstract:
We obtain sufficient and necessary center conditions for the Poincaré system P(2, 2n)(n ≤ 5). The necessity of the condition is derived from the first 2n focal values by symbolic computation with Maple, and the sufficiency is proved by Volokitin′s method.
Date: 2011
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https://doi.org/10.1155/2011/762762
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Persistent link: https://EconPapers.repec.org/RePEc:wly:jnljam:v:2011:y:2011:i:1:n:762762
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