【理学院】Modelling Wolbachia infection dynamics in mosquitoes via impulsive difference equations
主题: Modelling Wolbachia infection dynamics in mosquitoes via impulsive difference equations
报告人: 庾建设教授
时间: 2017年11月3日 15;00-16:00
地点: 大剧院报告厅(三楼)
报告人简介:
庾建设教授,广州大学博士生导师,国家杰出青年基金获得者。曾获省部级科技进步一、二、三等奖各两项。1996年入选国家“百千万人才工程”第一、二层次人选,1998年被评为国家有突出贡献的中青年专家,2000年获得教育部“跨世纪优秀人才培养计划”基金资助,2002年获教育部“高校青年教师奖”。庾建设教授曾任湖南大学副校长、广州大学校长、党委书记,多次担任国际国内学术会议的学术委员会主席,任第四届“中国学位与研究生教育学会”副会长。庾建设教授主要从事常微分方程、泛函微分方程、离散系统的理论与应用、生物数学研究,获得了一系列重要的研究成果,先后解决了国际著名数学家所提出的多个公开问题与猜想,主持多项国家自然科学基金重点项目与面上项目及科技部重大基础研究前期研究专项,担任“Communications on Pure and Applied Analysis”、“Journal of Difference Equations and Applications”等重要国际知名数学杂志的编委。
报告摘要:
Mathematical models making use of difference equations had played an instrumental role in determining the release threshold for Wolbachia fixation in nonoverlapping populations in laboratory. Inspired by its great potential to eliminate the mosquito-borne diseases. Our question is: If a batch of Wolbachia-infected mosquitoes are released in a laboratory cage, how will the infection frequency in the cage change? Intuitively, we might expect that the frequency always increases. This is, to our surprise, not always the case. Our analysis depends on impulsive difference equations and shows that there is a threshold frequency, denoted by x, such that the monotonicity of the infected frequency is closely associated with the relation between the previous frequency and x.