On Uniqueness of Limit Cycles in General Bogdanov–Takens Bifurcation

Maoan Han, Jaume Llibre, Junmin Yang
2018 International Journal of Bifurcation and Chaos in Applied Sciences and Engineering  
In this paper we present a complete study to the well-known Bogdanov-Takens bifurcation and give a rigorous proof for the uniqueness of limit cycles.
doi:10.1142/s0218127418501158 fatcat:gcryymt2fzhfra3g2hm2xm35t4