数苑藕舫论坛(2024年第20期):特邀兰州大学王智诚教授来9999js金沙老品牌作学术报告

发布者:贾继红发布时间:2024-05-06浏览次数:59

报告题目Propagation phenomena in a class of reaction-advection-diffusion equations in cylinders
报告人王智诚教授
报告时间202457日(星期二)上午10:00-11:00 

报告地址:藕舫楼724

主持人:吕广迎教授

报告摘要:This talk is devoted to the study of a class of reaction-advection-diffusion equations in cylinders, where the nonlinearity is a tristable or multistable nonlinearity. 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. Our arguments are based on the parabolic maximum principle, sliding method and the super- and sub-solution method.

报告人简介:王智诚,兰州大学9999js金沙老品牌教授,兰州大学萃英学者特聘教授,博士生导师。1994年本科毕业于西北师范大学,2007年在兰州大学获理学博士学位。主要成果发表在Arch. Rational Mech. Anal.JMPATrans. AMSSIAM J. Math. Anal.SIAM J. Appl. Math.Calc. Var. PDEJ. d’Anal. Math.JDEJDDENonlinearityJ. Nonlinear Sci. 等期刊。2010年入选教育部新世纪优秀人才支持计划,20112019年分别获得甘肃省自然科学二等奖,2016年入选甘肃省飞天学者特聘教授,主持完成多项国家自然科学基金面上项目。目前担任两个SCI杂志International J. Bifurc. Chaos Mathematical Biosciences and Engineering (MBE) 的编委(Associate editor)。

 

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