報 告 人:康浩 博士
報告題目:Mathematical analysis on an age-structured SIS epidemic model with nonlocal diffusion
報告時間:2023年11月23日(周四)上午8:30-11:30
報告地點:騰訊會議:149-223-166
主辦單位:數(shù)學(xué)與統(tǒng)計學(xué)院、數(shù)學(xué)研究院、科學(xué)技術(shù)研究院
報告人簡介:
康浩,天津大學(xué)應(yīng)用數(shù)學(xué)中心講師。2013年本科畢業(yè)于蘭州大學(xué),2020年博士畢業(yè)于美國邁阿密大學(xué),隨后在法國諾曼底勒阿弗爾大學(xué)做博士后。2022年7月在天津大學(xué)應(yīng)用數(shù)學(xué)中心工作。主要研究微分方程和動力系統(tǒng)及其在生物數(shù)學(xué)中的應(yīng)用。在Math. Ann.、Israel J. Math.、 J. Anal. Math. 、SIAM J. Math. Anal.、Calc. Var. Partial Differential Equations、J.Differential Equations等學(xué)術(shù)期刊發(fā)表若干文章。
報告摘要:
We propose an age-structured susceptible-infectious-susceptible epidemic model with nonlocal (convolution) diffusion to describe the geographic spread of infectious diseases via long-distance travel. We analyze the well-posedness of the model, investigate the existence and uniqueness of the nontrivial steady state corresponding to an endemic state, and study the local and global stability of this nontrivial steady state. Moreover, we discuss the asymptotic properties of the principal eigenvalue and nontrivial steady state under small diffusion rate. The analysis is carried out by using the theory of semigroups and the method of monotone and positive operators. This is a joint work with Professor Shigui Ruan.