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【和山数学论坛105讲】 山西大学靳祯教授学术报告

信息来源:学院办公室   点击次数:  发布时间:2016-11-21

 

 

 

一、题目:  Bifurcation analysis of a pair-approximation epidemic model on adaptive networks

二、主讲人靳祯教授

三、时 20161125日,下午:14:00-14: 45(周五)

四、地 :闻理园A4-305

报告摘要: The bifurcation of most epidemic models on complex networks leading from a disease free equilibrium to an endemic equilibrium is forwarded. Gross et al. established a pair-approximation epidemic model for the spreading of infections on an adaptive network based on the well-known SIS model, and numerical studies have figured out that the rewiring mechanism can lead to backward bifurcation and Hopf bifurcation. However, they have not presented a strict mathematical proof of their conclusion in the literature. In this talk, we analytically give the basic reproduction number and the critical conditions for the bifurcations to occur. Furthermore, we give a detailed analysis for these rich dynamical behaviors, such as bistability and periodicity.

报告人简介:靳 祯,山西大学教授。现任山西省数学会理事长,中国生物数学学会副理事长,Plos One》等编委。曾获教育部新世纪优秀人才,山西省教学名师,全国优秀教师等荣誉,享受国务院政府特殊津贴,目前也是山西省科技创新团队,国家自然科学奖及国家基金数理学部的会审专家。主要从事生物数学及复杂网络研究工作,先后主持国家自然基金项目5 ,其中国家自然基金重点项目1 项。作为第一完成人,2010 年获得山西省科学技术奖(自然科学类)一等奖,2014 年获得教育部高等学校优秀成果二等奖奖(自然科学类)。

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