报告人🐾：徐衍聪 副教授 （杭州师范大学）

题目👊🏼：Snakes and Isolas of Localized Patterns

时间🚉：3月24日（星期四）🧑🏻‍🦳，上午 10:00-11:00

地点：致远楼107

欢迎各位老师和同学参加！

徐衍聪，华东师范大学应用数学博士，浙江大学博士后，杭州师范大学数学系副教授📞，硕士生导师，美国（SIAM）工业与应用数学会员，美国数学评论评论员🩳。先后访问美国布朗大学🫷🏽、日本京都大学、德国不莱梅大学等高校。目前主要从事动力系统分支理论及应用研究🧑🏿‍🚀，主要包括🧮🎷：Dynamical Systems, Dynamics of Patterns, Nonlinear Waves, Homoclinic and Heteroclinic Phenomena等研究工作。先后在Discrete and Continuous Dynamical Systems A🫃🏻，Dynamical Systems🍊，Nonlinear Dynamics，Inter. J. of Bifur. and Chaos，Science in China等杂志发表论文30余篇👇🏼，主持和参与各类基金10余项💵。

报告摘要

As we know, there are many systems undergoing different kinds of snaking bifurcations, such as slanted snaking, collapsed snaking etc., and isola bifurcations including a stack of isolas and a nested of isolas. In this talk, we will focus on the existence of snakes and isolas of a non-symmetric system. Conditions are derived that guarantee snaking or result in diagrams that either consist entirely of isolas.