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.