報告承辦單位:數學與統計學院
報告題目: Basic Reproduction Ratios for Periodic Compartmental Models with Time Delay(時滯周期倉室模型的基本再生數)
報告人姓名:Xiaoqiang Zhao (趙曉強)
報告人所在單位:Department of Mathematics and Statistics,Memorial University of Newfoundland, Canada (加拿大紐芬蘭紀念大學數學與統計系)
報告人職稱: 教授,博士生導師
報告時間:2021年5月18日(星期二)晚上19:30-20:30
騰訊會議號碼:280 556 551
報告人簡介:趙曉強,加拿大紐芬蘭紀念大學數學與統計系教授,該校University Research Professorship榮譽獲得者。趙教授先后于1983年和1986年在西北大學數學系獲學士和碩士學位,1990年在中國科學院應用數學研究所獲博士學位。趙教授長期從事動力系統、微分方程和生物數學相關領域的研究,在單調動力學、一致持久性、行波解和漸近傳播速度、基本再生數的理論及應用等方面的系列工作受到同行的廣泛關注和引用。迄今為止,他已在“Comm. Pure Appl. Math.、 J. Eur. Math. Soc.、 J. reine angew. Math.、J. Math. Pures Appl.、Trans. Amer. Math. Soc.、SIAM J. Math. Anal.”等國際知名期刊上發表論文100余篇,并在Springer出版專著“Dynamical Systems in Population Biology”。
趙教授個人主頁:https://www.math.mun.ca/~zhao/
報告摘要:In this talk, I will report our recent research on basic reproduction ratio R0 for time-delayed compartmental population models in a periodic environment. It is proved that R0 serves as a threshold value for the stability of the zero solution of the associated periodic linear systems. An extension of such a theory to spatial population models and a general algorithm for the numerical computation of R0 will be discussed. As an application, we propose a Malaria transmission model with temperature -dependent incubation period, and then establish a threshold type result on its global dynamics in terms of R0. We also do a case study of the Malaria transmission in Maputo Province, Mozambique.