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Quadratic systems with a weak focus and a strong focus

✍ Scribed by Zhang Pingguang


Book ID
107502191
Publisher
SP Editorial Committee of Applied Mathematics - A Journal of Chinese Universities
Year
1999
Tongue
English
Weight
303 KB
Volume
14
Category
Article
ISSN
1005-1031

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πŸ“œ SIMILAR VOLUMES


Weak Focus, Limit Cycles, and Bifurcatio
✍ C.Z. Li; J. Llibre; Z.F. Zhang πŸ“‚ Article πŸ“… 1995 πŸ› Elsevier Science 🌐 English βš– 781 KB

We study the bounded quadratic systems with either two weak foci or a weak focus of order 2. From the first case we obtain (1,1)-configuration of limit cycles, and in the second case we prove that there is no limit cycle surrounding the weak focus of order 2. Also, we unfold the bounded quadratic sy