南京理工大學邱誌鵬教授學術報告

發布者:陳冰潔發布時間🧑🏽‍🦱:2019-05-17瀏覽次數🍝🫷🏼:2485

報告題目🍒:Monotone dynamics and global behaviors of a West Nile virus model with mosquito demographics

報告人🧚🏽:邱誌鵬 教授

報告時間🪞:2019520日(星期一)上午10:00-11:00

報告地點:必一体育平台二樓會議室

報告摘要:In this paper a mathematical model is formulated to study transmission dynamics of West Nile virus (WNv), which incorporates mosquito demographics including pair formation, metamorphic stages and intraspecific competition. The global behaviors of the model are obtained from a geometric approach and the theory of monotone dynamics, even though bistability is present due to backward bifurcation. It turns out that the model can be investigated through two auxiliary subsystem, which are cooperative and K-competitive, respectively. Together with implement of compound matrices and Poincare-Bendixson theory, a thorough classification of dynamics of the full model is characterized by mosquito reproduction number R_M, WNv reproduction number R_0 and a bistability subthreshold R_c. The theoretical results show that if R_M is not greater than 1, mosquitoes will not survive, and the WNv will die out; if R_M is greater than 1, then mosquitoes will persist, and disease may prevail or vanish depending on basin of attraction of the local attractors. Our method in this paper can be applied to other mosquito-borne diseases such as malaria, dengue fever which have a similar monotonicity.

 

邱誌鵬教授簡介:邱誌鵬👮🏿‍♂️:南京理工大學必一体育平台教授,博士生導師🏂🏼。1999年從西南師範大學獲基礎數學專業碩士學位後進入南京理工大學必一体育平台從事教學和科研工作🏌🏽;2003年獲南京理工大學控製科學與工程專業博士學位;20037月至20057月在中國科學技術大學數學系從事博士後研究工作;20088月至20098月和20118月至20125月兩次美國普渡大學做訪問學者(訪問助理教授)和合作交流;20137月至20147月在加拿大York大學做訪問學者和合作交流;先後還短期(三個月以內)訪問過意大利Trento大學⛑️,加拿大Alberta大學和美國Flordia大學。主要從事常微分方程、動力系統與生物數學的研究工作,主持完成國家自然科學基金青年基金1項,面上項目1項🥢👨🏿‍🏫,教育部留學回國基金1項👱🏽‍♂️🍖,參加完成國家自然科學基金面上項目1項,目前正在主持國家自然科學基金面上項目1項,已在Bull. Math. Biol., Math. Biosci., J. Diff. Equs., SIAM J. Appl. Math., J. Math. Anal. Appl.等期刊上發表論文40余篇。


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