报告题目：Hopf bifurcation in a class of piecewise smooth near-Hamiltonian systems

报告人：刘姗姗博士，福建师范大学

报告时间：2024年11月11日（周一）15:00-16:00

报告地点：21-417

报告摘要：In this talk, we discuss Hopf bifurcation for planar piecewise smooth near-Hamiltonian systems with a center of parabolic-parabolic (PP) or focus-parabolic (FP) type. By studying asymptotic expansion of the first order Melnikov function, we obtain theorems to find an upper bound and a lower bound of the number of limit cycles near the center of these two types, respectively.

报告人简介：刘姗姗，现为福建师范大学讲师，主要从事常微分定性理论的研究工作，特别是弱化的Hilbert第16问题、同宿异宿极限环分支等相关问题，在 J. Differential Equations、Chaos Solitons Fractals、 Comput. Appl. Math.、Bull. Sci. Math.等杂志上发表过多篇论文。

邀请人：韩茂安