The paper deals with the cyclicity of unbounded semi-hyperbolic 2-saddle cycles in polynomial Liénard systems of type (m, n) with m < 2n +1, m and n odd. We generalize the results in  (case m = 1), providing a substantially simpler and more transparant proof than the one used in .
|Journal||Discrete and Continuous Dynamical Systems|
|Publication status||Published - 1 Jul 2010|
- Heteroclinic connection
- Limit cycle
- Nard equation