主講人：孫寧奎 山東師范大學(xué)副教授

時(shí)間：2025年2月21日16：30

地點(diǎn)：三號(hào)樓332室

舉辦單位：數(shù)理學(xué)院

主講人介紹：孫寧奎，山東師范大學(xué)副教授，2016年于同濟(jì)大學(xué)獲得理學(xué)博士學(xué)位，研究方向?yàn)榉蔷€性偏微分方程和生物數(shù)學(xué)，發(fā)表論文10余篇，部分成果發(fā)表在Math. Ann., Calc. Var. Partial Differential Equations, J. Differential Equations等期刊。主持國(guó)家自然科學(xué)基金青年項(xiàng)目1項(xiàng)，山東省優(yōu)秀青年基金1項(xiàng)，山東省青創(chuàng)團(tuán)隊(duì)項(xiàng)目1項(xiàng)。

內(nèi)容介紹：This talk is devoted to the dynamical behavior of solutions to some free boundary problems with time-delay and advection. We obtain that when the coefficient of advection is small, there exists a vanishing-spreading dichotomy result; when the coefficient of advection is medium-sized, there exists a vanishing-transition-virtual spreading trichotomy result; when the coefficient of advection is large, only vanishing happens. We also show that the profiles of (virtual) spreading solutions are uniquely determined by the corresponding semi-waves.