A fully parabolic predator-prey system with indirect pursuit-evasion and mild logistic damping: global existence, eventual regularity and asymptotic behavior
报告人:柯媛元
报告地点:人民大街校区数学与统计学院619大应用数学实验室
报告时间:2026年10月31日星期六 10:00-11:00
邀请人:张凯军
报告摘要:
We study a fully parabolic predator-prey system with indirect pursuit-evasion behavior under Neumann boundary conditions. Strong coupling between the predator and prey densities, induced by a Holling type I functional response, is a key feature of the model. In contrast to most of the existing literature, which concentrates on the case of strong logistic growth, we develop a complete solution theory for the weakly damped logistic situation. It is shown that appropriate sub-logistic damping can prevent blow-up in two space dimensions, while for any quadratic logistic degradation the system always admits global weak solutions in higher dimensions (N≥ 3).
主讲人简介:
柯媛元,中国人民大学数学学院执行院长、教授、博士生导师,金融计算与数字工程教育部工程研究中心主任,中国人民大学应用数学研究中心主任。从事反应扩散方程理论的研究,已在Math. Models Methods Appl. Sci.,J. Differential Equations,Calc. Var. Partial Differential Equations,Nonlinearity等高水平学术期刊发表科研论文62篇,出版学术专著1部,教材3部,先后主持国家自然科学基金、北京市自然科学基金等多项省部级以上科研项目7项,省部级教学改革项目1项,入选北京高等学校“青年英才计划”,曾获宝钢优秀教师奖、北京市高等学校青年教学名师、北京高校优秀本科育人团队成员。