
题目:Propagation Dynamics for Lattice Equation in A Spatial-periodic Shifting Environment
主讲人:王智诚 兰州大学 教授、博导
时间:2026年4月20日15:00-18:00
地点:2号报告厅
报告简介:In this talk we investigate the propagation dynamics of lattice differential equations in a spatial-periodic shifting habitat. We firstshow the existence and nonexistence of periodic forced KPP waves by the minimum wave speed in the limiting environment. When the periodic forced KPP wave exists, we further establish its uniqueness and global exponential stability. Moreover, we consider periodic forced pulse waves and show a threshold result on its existence and nonexistence. Finally, we investigate the spreading properties of the solutions and indicate that the long-time behaviors of solutions depend on the speed of the shifting habitat and the minimum wave speed in the limiting environment.
报告人简介:王智诚,教授,博士生导师,萃英学者特聘教授。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。主要研究方向为偏微分方程与动力系统理论,主要成果发表在Trans. AMS、Arch. Rational Mech. Anal.、JMPA、Indiana Univ. Math. J.、SIAM J. Math. Anal.、SIAM J. Appl. Math.、Israel J. Math.、Sci. China MATH.、CVPDE、JDE、JGA、Nonlinearity、J. Nonlinear Sci.、J. Math. Biol.等杂志上。2010年入选教育部新世纪优秀人才支持计划,2011和2020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,主持多项国家自然科学基金面上项目和一项甘肃省基础研究创新群体项目,参与完成一项国家自然科学基金重点项目。目前担任杂志International J. Bifurc. Chaos 和Math. Biosci. Engineering 的编委。