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The Number of Limit Cycles of a Polynomial System on the Plane
oleh: Chao Liu, Maoan Han
Format: | Article |
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Diterbitkan: | Wiley 2013-01-01 |
Deskripsi
We perturb the vector field x˙=-yC(x,y), y˙=xC(x,y) with a polynomial perturbation of degree n, where C(x,y)=(1-y2)m, and study the number of limit cycles bifurcating from the period annulus surrounding the origin.