一、题目:
Geometric singular approach to Poisson-Nernst-Planck type models for ionic flows through membrane channels
二、主讲人:
Mingji Zhang
三、摘要:
In this talk, a brief description of ion channels and the background of Poisson-Nernst-Planck (PNP) models are provided. Focusing on the key structure of ion channels, a one-dimensional PNP model is derived, from which qualitative properties of ionic flows can be studied in great details. The main idea of Geometric Singular Perturbation Theory is introduced, which is the main tool to study the PNP system. As an example, the theory is applied to a simple case of Poisson-Nernst-Planck system with two ion species, one positively charged and one negatively charged. Finally, interesting research topics and some obtained results related to ion channel problems are discussed.
四、主讲人简介:
Mingji Zhang(张明吉),副教授,目前就职于美国新墨西哥矿业理工学院。2003考入昆明理工大学,师从李继彬教授学习动力系统基本理论,获理学硕士学位;后经李老师推荐,赴美国堪萨斯大学(University of Kansas)师从Weishi Liu(刘为世)教授攻读理学博士学位,于2013年毕业,获理学博士学位;2013-2015年跟随著名数学家Peter W. Bates在密歇根州立大学(Michigan State University)做博士后研究。研究方向为非线性动力系统,微分方程及其应用,特别是在离子通道问题(Ion Channel Problem)和发展生物学(developmental biology)中的应用。研究的主要工具是在非线性动力系统不变流形理论上发展起来的几何奇异摄动理论。在研究离子通道问题中,特别是对离子流的动力学行为的研究,做出了重要贡献,得到同行专家学者的高度认可。已在J. Differential Equations、J. Nonlinear Science、Nonlinearity、J. Dynamics and Differential Equations、SIAM J. Applied Mathematics、SIAM J. Applied Dynamical Systems、Discrete and Continuous Dynamical Systems-A等国际著名期刊发表论文40余篇。美国《数学评论》评论员,SIAM系列,DCDS系列,Int. J. System Science等近40 SCI杂志特邀审稿人。
五、邀请人:
陈章 数学学院教授
六、时间:
12月15日(周三)10:30-11:30
七、地点:
腾讯会议,会议ID:945 851 674
八、主办方:
山东大学数学学院