Limit Cycles Close to Infinity of Certain Non-Linear Differential Equations
Canadian mathematical bulletin, Tome 33 (1990) no. 1, pp. 55-59

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Through successive radial perturbations of a certain planar Hamiltonian polynomial vector field of degree 2K + 1, we obtain a least K limit cycles containing (2K + 1)2 singularities.
DOI : 10.4153/CMB-1990-009-8
Mots-clés : 34A34
Guíñez, Víctor; Sáez, Eduardo; Szántó, Iván. Limit Cycles Close to Infinity of Certain Non-Linear Differential Equations. Canadian mathematical bulletin, Tome 33 (1990) no. 1, pp. 55-59. doi: 10.4153/CMB-1990-009-8
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     author = {Gu{\'\i}\~nez, V{\'\i}ctor and S\'aez, Eduardo and Sz\'ant\'o, Iv\'an},
     title = {Limit {Cycles} {Close} to {Infinity} of {Certain} {Non-Linear} {Differential} {Equations}},
     journal = {Canadian mathematical bulletin},
     pages = {55--59},
     year = {1990},
     volume = {33},
     number = {1},
     doi = {10.4153/CMB-1990-009-8},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-1990-009-8/}
}
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