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,
โฆ LIBER โฆ
Condition for generating limit cycles by bifurcation of the loop of a saddle-point separatrix
โ Scribed by Feng Beiye
- Book ID
- 110556141
- Publisher
- Institute of Mathematics, Chinese Academy of Sciences and Chinese Mathematical Society
- Year
- 1987
- Tongue
- English
- Weight
- 364 KB
- Volume
- 3
- Category
- Article
- ISSN
- 1439-7617
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