报告题目：A spatiotemporal model for the effects of toxicants on populations in a polluted river
报 告 人：黄启华，西南大学 教授
报告摘要：One reason why polluted water is the world's primary concern is because it persists to pose threats to the health of aquatic life. To study the effects of environmental toxicants on population dynamics in polluted rivers, we develop a process-oriented model that describes the interaction between a population and a toxicant in an advective environment. The model consists of two reaction-diffusion-advection equations, one of which governs the dispersal and growth of the population under the influence of toxicants, while the other describes the dispersal, input, as well as decay of the toxicant. We explore the existence and stability of steady states based on the analysis of eigenvalue problems, which yields sufficient conditions that lead to population persistence or extinction. We numerically analyze how the interplay between several factors (toxicant input, flow velocity, the diffusion and advection characteristics of the population and the toxicant) affects the persistence and spatial distributionof the population.
报告人简介：黄启华，教授，博士研究生导师。 2011年8月在美国 University of Louisiana at Lafayette 获得应用数学博士学位。2011年8月至2016年6月在加拿大 University of Alberta 生物数学中心从事博士后研究工作，合作导师为 Mark Lewis 教授 (加拿大皇家科学院院士，Senior Canada Research Chair in Mathematical Biology)。2016年6月通过西南大学引进人才“聚贤工程”计划被特别评聘为教授，并于2016年9月到西南大学伟德国际1946源自英国工作。主要研究方向为生物数学、偏微分方程和数值分析。科研成果主要发表在应用数学、生物数学和理论生态学等领域的期刊SIAM Journal on Applied Mathematics，SIAM Journal on Applied Dynamical Systems, Journal of Mathematical Biolog, Bulletin of Mathematical Biology, Jounral of Theoreticl Biology, Theoretical Ecology等，其中2017年和2022年发表在SIAM Journal on Applied Mathematics上的论文先后在美国工业与应用数学学会的官方网站上被报道。先后主持国家自然科学基金面上项目两项、重庆市留学人员回国创新支持计划重点项目一项。
报告时间：2022年10月27日（星期四）下午15:00-16:30
报告地点：腾讯会议ID: 372429271
主办单位：伟德国际1946源自英国
