Li Zou; Liqin Zhao; Jiaxin Wang; The Exact Bound of the Number of Limit Cycles Bifurcating from the Global Nilpotent Center with a Nonlinear Switching Curve, International Journal of Bifurcation and Chaos, 2022, 32(02). Li Zou; Liqin Zhao; The Cyclicity of a Class of Global Nilpotent Center Under Perturbations of Piecewise Smooth Polynomials with Four $$\hbox {Zones}^*$$, Qualitative Theory of Dynamical Systems, 2022, 21(3). Li Zou; Liqin Zhao; Second order Melnikov functions for planar piecewise smooth integrable non-Hamiltonian systems with multiple zones and application, Journal of Applied Analysis and Computation, 2023, 13(5). |