报告题目:Critical mass in a chemotaxis model with indirect signal production mechanism
报告人:向昭银 教授(电子科技大学)
报告时间:2022年6月22日(星期三)上午9:00-10:30
报告地点:腾讯会议 会议ID:926-504-038
校内联系人:王文栋 教授 联系电话:84708351-8139
报告摘要: In this talk, we present a critical mass phenomenon in a chemotaxis model with indirect signal production mechanism. Our first result asserts 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. Our 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.
报告人介绍: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《Communication in Partial Differential Equations》、《Calculus of Variations and Partial Differential Equations》、《International Mathematics Research Notices》、《Journal of Functional Analysis》、《Mathematische Zeitschrift》 等期刊上发表学术论文 60 余篇;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;入选四川省杰出青年学术技术带头人资助计划、四川省学术和技术带头人后备人选等。