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Centers and Isochronous Centers for Two Classes of Generalized Seventh and Ninth Systems

✍ Scribed by Jaume Llibre; Clàudia Valls


Publisher
Springer US
Year
2010
Tongue
English
Weight
233 KB
Volume
22
Category
Article
ISSN
1040-7294

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A class of ninth degree system with four
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In this paper we study a class of ninth degree system and obtain the conditions that its four singular points can be general centers and isochronous centers (or linearizable centers) at the same time by computing carefully and strict proof. What is worth mentioning is that the expressions of Liapuno