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Bifurcation of limit cycles for a quartic near-Hamiltonian system by perturbing a nilpotent center

โœ Scribed by Jiao Jiang


Book ID
108178595
Publisher
Elsevier Science
Year
2010
Tongue
English
Weight
253 KB
Volume
365
Category
Article
ISSN
0022-247X

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โœ Chaoxiong Du; Yirong Liu ๐Ÿ“‚ Article ๐Ÿ“… 2008 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 770 KB

In this paper, we study a class of quasi-symmetric seventh degree system. By making two appropriate transformations of system (3) and calculating general focal values carefully, we obtain the conditions that the infinity and the elementary focus (-1 2 , 0) become centers at the same time. Moreover,