一、题目:
Critical mass in a 2D chemotaxis system with indirect signal production mechanism
二、主讲人:
向昭银
三、摘要:
In this talk, I will present a critical mass phenomenon in a 2D chemotaxis model with indirect signal production mechanism. The first result shows that for any suitably regular initial data, the system admits global classical solution, which is different from the classical Keller-Segel system with direct signal production mechanism. The second result confirms that for all radially symmetric initial data smaller than the critical value, the solutions are globally bounded, while for any initial mass larger than the critical value, unbounded global solutions can be constructed. This is a joint work with Dr Lan Yang.
四、主讲人简介:
向昭银,电子科技大学数学科学学院教授、博士生导师、副院长;2006年博士研究生毕业于四川大学;主要从事偏微分方程的研究,在CPDE、Cal Var、IMRN、JFA、Math Z等期刊上发表学术论文60余篇;先后主持国家自然科学基金、中国博士后科学基金、教育部留学回国人员科研启动基金等。
五、邀请人:
陶涛 数学学院副教授
六、时间:
10月27日(周四)9:30-10:30
七、地点:
腾讯会议
八、联系人:
陶涛,联系方式:taotao@sdu.edu.cn
九、主办单位:
山东大学数学学院