The Number of Limit Cycles of a Polynomial System on the Plane

oleh: Chao Liu, Maoan Han

Format: Article
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.