大连理工大学数学科学学院
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A KAM-Theorem for Invariant Tori in Bifurcations of Equilibrium Points

2018年04月16日 08:37  点击:[]

报告题目:A KAM-Theorem for Invariant Tori in Bifurcations of Equilibrium Points

报告时间:20180420日(周五)下午3点—4

报告地点: 创新园大厦A1101报告厅

报告人:李雪梅  湖南师范大学

报告校内联系人:丛洪滋 副教授 联系电话:84708351-8137

报告摘要:In this talk, we focus on the persistence of invariant tori in bifurcations of equilibrium points. We establish a KAM-theorem for ordinary differential equations of finitely differentiable vector fields with multiple degeneracies. The theorem can be used to deal with the persistence of quasi-periodic invariant tori in multiple Hopf bifurcations and zero-multiple Hopf bifurcations, as well as their subordinate bifurcations, of equilibrium points of continuous dynamical systems, such as ordinary differential equations, delay differential equations etc.

报告人简介:李雪梅  湖南师范大学数学与统计学院教授、博士生导师主要研究领域涉及常微分与时滞微分方程拟周期解(不变环面)的存在性和正则性、人工神经网络的动力学性质等方面,在JDEIEEE-TCAS Neural Comp.等刊物上发表论文40余篇,主持并完成了国家自然科学基金面上项目3项。  分别于1987年和2002年从内蒙古大学获得基础数学硕士学位和湖南大学获得应用数学博士学位,从1987年在湖南师范大学工作至今。应邀多次访问中科院数学与系统科学研究院、复旦大学、美国德州大学奥斯汀分校、西班牙CRM研究所等。

 

 

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