Abstract
In this paper, we consider the upper bounds of the number of isolated zeros of Abelian integrals associated to system
under the perturbation of \(\epsilon (\alpha _0+\alpha _1x+\alpha _2x^2+\alpha _3x^3+\alpha _4x^4)y\frac{\partial }{\partial y}\), where \(0<|\epsilon |\ll 1\) and \(\alpha _i\in \mathbb {R}, i=0,1,2,3,4\). The unperturbed system has a double eight figure loop. The sharp upper bounds are obtained for ten cases that two of five parameters vanish.
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Acknowledgments
This work was supported by the National Science Foundation of China (11271046, 11361046), the Science and Technology Pillar Program of Ningxia (KJ[2015]26(4)), the Fundamental Research Funds for the Central Universities, the Natural Science Foundation of Ningxia (NZ13213), the Higher Education Science Program of Ningxia (GX2014[222]17) and the key Program of Higher Education of Henan (16A110038).
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Yang, J., Zhao, L. The Perturbation of a Class of Hyper-Elliptic Hamilton System with a Double Eight Figure Loop. Qual. Theory Dyn. Syst. 16, 317–360 (2017). https://doi.org/10.1007/s12346-016-0194-z
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DOI: https://doi.org/10.1007/s12346-016-0194-z