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Critical period bifurcation and isochronous center condition for a sextic Liénard system
Qualitative Theory of Dynamical SystemsYusen Wu, Wu Yusen
exaly
Limit Cycles Bifurcating from a k-dimensional Isochronous Center Contained in ℝ n with k ⩽ n
Mathematical Physics Analysis and Geometry, 2007Joan Torregrosa +2 more
exaly
On the isochronous center of planar piecewise polynomial Hamiltonian system with separable variables
Rendiconti Del Circolo Matematico Di PalermoShaoqing Wang
exaly
The cyclicity of the period annulus around the quadratic isochronous center
Wuhan University Journal of Natural Sciences, 2001exaly
Center, limit cycles and isochronous center of a Z 4-equivariant quintic system
Acta Mathematica Sinica, English Series, 2010exaly
Uniform isochronous center of a class of higher degree polynomial differential systems
Applied Mathematicsexaly
[Map of isochrons in planning health centers].
Polski tygodnik lekarski, 2003openaire +1 more source