PROC
The geometry of limit cycle bifurcations in polynomial dynamical systems
Valery A. Gaiko
Conference Publications 2011, 2011(Special): 447-456 doi: 10.3934/proc.2011.2011.447
In this paper, applying a canonical system with eld rotation parameters and using geometric properties of the spirals lling the interior and exterior domains of limit cycles, we solve the problem on the maximum number of limit cycles for the classical Lienard polynomial system which is related to the solution of Smale's thirteenth problem. By means of the same geometric approach, we generalize the obtained results and solve the problem on the maximum number of limit cycles surrounding a unique singular point for an arbitrary polynomial system which is related to the solution of Hilbert's sixteenth problem on the maximum number and relative position of limit cycles for planar polynomial dynamical systems.
keywords: classical Lienard polynomial system eld rotation parameter Planar polynomial dynamical system bifurcation; limit cycle Hilbert's sixteenth problem Smale's thirteenth problem

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