报告题目：The cyclicity of a class of quadratic reversible systems with hyperelliptic curves

报告时间：2025年5月15日 10：00-11：00

报 告 人：孙杨剑 副教授

报告地点：数学楼301报告厅

主办单位：炸金花

报告摘要：This talk is devoted to the cyclicity of a class of quadratic reversible systems with hyperelliptic level curves and two period annuli. By a new Chebyshev criterion which is an extension of the method proposed by Liu and Xiao (2020), we prove that the cyclicity of every period annulus is two and show at the same time the configuration of the limit cycles. This talk is, to the best of our knowledge, the first work on the cyclicity of quadratic reversible systems for the hyperelliptic case.

主讲人简介：孙杨剑，上饶师范学院副教授。主要从事常微分方程定性理论的研究。主持国家自然科学基金项目、江西省教育厅项目各一项，以第一作者或通讯作者身份在Sci. China Math.、Phys. D、Proc. Royal. Soc. Edinb. Sec. Math、Bull. Sci. Math.、Dis. Con. Dyn. Sys. B等SCI杂志上发表论文十余篇。