應(yīng)yl7703永利官網(wǎng)李萬(wàn)同教授和王賓國(guó)教授的邀請(qǐng)，美國(guó)奧本大學(xué)沈文仙教授將于2021年6月28日-6月30日與我校有關(guān)師生進(jìn)行在線學(xué)術(shù)研討，其中6月29日舉行線上專題學(xué)術(shù)報(bào)告。

報(bào)告題目:Effects of Chemotaxis Sensitivity and Logistic Source on the Dynamics of Chemotaxis Models

時(shí) 間：6月29日上午10:10.

地 點(diǎn)：騰訊ID：694 8382 5110

報(bào)告摘要：Chemotaxis models are used to describe the movements of biological species or living organisms in response to certain chemicals in their environments. It is known that chemotaxis may induce finite-time blow-up in various minimal chemotaxis models. In a minimal chemotaxis model, there is no reaction term or source term in the governing equation for the living organisms. It has been attracting a lot of attention to study the dynamics of chemotaxis models with a nonlinear source. The current talk is concerned with the dynamics of chemotaxis models with logistic source. In particular, I will discuss the finite-time blow-up prevention by logistic source in parabolic-elliptic chemotaxis models on bounded domains and the effect of chemotaxis sensitivity on the spreading speeds of chemotaxis models with logistic source on the whole space.

歡迎廣大師生光臨!

沈文仙(Wenxian Shen)教授教授簡(jiǎn)介

沈文仙教授1987年于北京大學(xué)數(shù)學(xué)系獲得碩士學(xué)位；1992年于美國(guó)喬治亞理工學(xué)院數(shù)學(xué)學(xué)院獲得博士學(xué)位。自1992于美國(guó)奧本大學(xué)數(shù)學(xué)系任教，2002后成為全職教授。沈教授多年來(lái)致力于研究許多微分方程中的動(dòng)力學(xué)問(wèn)題，包括異質(zhì)和隨機(jī)介質(zhì)理論中的行波解，單調(diào)動(dòng)力系統(tǒng)中的Lyapunov指數(shù)理論，非局部擴(kuò)散算子的譜理論及應(yīng)用，和擬周期反應(yīng)擴(kuò)散方程的漸近動(dòng)力學(xué)行為。沈教授在《Transactions of The American Mathematical Society》、《Journal of Differential Equations》、《Journal ofDynamics and Differential Equations》等國(guó)際著名期刊上發(fā)表學(xué)術(shù)論文80余篇，論文被引用超過(guò)1000多次，主持過(guò)多項(xiàng)國(guó)家自然科學(xué)基金。

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2021年6月26日