雲亭數學講壇2022第82講—— 王智誠教授

文章來源:77779193永利發布日期:2022-11-11浏覽次數:337

應學院邀請,蘭州大學王智誠教授将在線作學術報告。

報告題目:Periodic traveling waves  and propagating terraces in reaction-diffusion-advection equations with multistable nonlinearity in cylinders

報告摘要:This talk is  devoted to the study of  a  class of  reaction-advection-diffusion equations of the form $u_{t}-\Delta u+\beta(y)u_{x}=f(t,u)$ in cylinders, where $f$ is a tristable or multistable nonlinearity satisfying $f(\cdot,0)=f(\cdot,1)=0$. We establish the alternative of wave solutions, that is,  either there is a unique, asymptotically stable periodic traveling wave connecting 0 to 1 directly, or there is a unique propagating terrace connecting 0 to 1. Under the  assumption that all wave speeds  in propagating terrace are not equal to each other,  we further obtain that the propagating terrace is asymptotically stable if it exists. Moreover, the sufficient and necessary conditions for the existence of  periodic traveling waves connecting 0 to 1 are given respectively.

報告時間:2022111515:00

報告地點:騰訊會議号(947-497-036)

邀 請 人:強立忠、田歌博士

屆時歡迎廣大師生參與交流!


報告人簡介

王智誠,蘭州大學77779193永利教授,博士生導師。1994年本科畢業于77779193永利,2007年在蘭州大學獲理學博士學位。主要成果發表在Trans. AMSArch. Rational Mech. Anal.SIAM J. Math. Anal.SIAM J. Appl. Math.JMPACPDEJDENonlinearity等雜志上。2010年入選教育部新世紀優秀人才支持計劃,20112019年分别獲得甘肅省自然科學二等獎,2016年入選甘肅省飛天學者特聘教授,主持完成兩項國家自然科學基金面上項目以及教育部博士點基金等多項省部級項目,正在主持一項甘肅省基礎研究創新群體項目、一項國家自然科學基金面上項目并參加一項國家自然科學基金重點項目。目前擔任International  J.  Bifurc. Chaos 等多個雜志的編委(Associate editor)。



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