论文信息 - Separatrix and limit cycles of quadratic systems and Dulac’s theorem

Separatrix and limit cycles of quadratic systems and Dulac’s theorem

Separatrix cycles for a planar quadratic vector field are studied. The results obtained are used to show that in any bounded region of the plane a quadratic vector field has at most a finite number of limit cycles.

Carmen Chicone | C. Chicone | Douglas S. Shafer | D. Shafer

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