The dynamics of some reaction diffusion equations

發(fā)布者:文明辦發(fā)布時(shí)間:2023-11-23瀏覽次數(shù):382


主講人:杜增吉 江蘇師范大學(xué)教授


時(shí)間:2023年11月24日15:00


地點(diǎn):三號(hào)樓332室


舉辦單位:數(shù)理學(xué)院


主講人介紹:杜增吉,江蘇師范大學(xué)副校長(zhǎng)、二級(jí)教授、博士生導(dǎo)師,中國(guó)數(shù)學(xué)會(huì)奇異攝動(dòng)專業(yè)委員會(huì)副理事長(zhǎng),江蘇省“333高層次人才”中青年科技領(lǐng)軍人才和中青年科學(xué)技術(shù)帶頭人,江蘇省重點(diǎn)學(xué)科負(fù)責(zé)人、江蘇省工程研究中心主任、江蘇省優(yōu)秀教育工作者。研究方向?yàn)槲⒎址匠膛c動(dòng)力系統(tǒng)、奇異攝動(dòng)理論及其應(yīng)用等。在 J. Funct. Anal., J. Nonlinear Sci., J. Differential Equations, J. Math. Biol., Proc. AMS 和《中國(guó)科學(xué)數(shù)學(xué)》等數(shù)學(xué)期刊上發(fā)表論文80余篇。主持國(guó)家自然科學(xué)基金項(xiàng)目6項(xiàng),參加國(guó)家自然科學(xué)基金重大項(xiàng)目1項(xiàng)。獲得江蘇省數(shù)學(xué)成就獎(jiǎng)、江蘇省優(yōu)秀教學(xué)成果獎(jiǎng)二等獎(jiǎng)、山東省自然科學(xué)獎(jiǎng)二等獎(jiǎng)等,先后擔(dān)任多個(gè)數(shù)學(xué)SCI雜志編委。


內(nèi)容介紹:In this talk, we mainly investigate a coupled FitzHugh-Nagumo (FHN) equation with doubly-diffusive effect and local time delay. The singular orbits are constructed by analyzing limit dynamics of the equations in the traveling wave framework by means of phase space analysis. To establish the traveling pulses for the full system, the main analysis relies on exterior differential forms, the geometric singular perturbation theory and Exchange Lemma. We also discuss the traveling wave phenomena, stability and Hopf bifurcation of competition-diffusion-advection equations and predator-prey systems etc.