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Sufficient and necessary center conditions for the Poincaré systems P (2,2 n) (n ≤ 5)
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نویسنده
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xu j. ,lu z.
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منبع
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journal of applied mathematics - 2011 - دوره : 2011 - شماره : 0
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چکیده
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We obtain sufficient and necessary center conditions for the poincaré system p (2,2 n) (n ≤ 5). the necessity of the condition is derived from the first 2 n focal values by symbolic computation with maple,and the sufficiency is proved by volokitin's method. copyright © 2011 jinya xu and zhengyi lu.
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آدرس
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institute of computer applications,academia sinica, China, institute of computer applications,academia sinica,chengdu 610041,china,department of mathematics,sichuan normal university, China
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Authors
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