应兰州大学数学与统计学院李万同教授和孙建文教授邀请，西安电子科技大学吴事良教授将于2026年6月26日作学术报告，诚邀全校师生参加！

题目：Qualitative properties of forced waves for the Fisher-KPP equation in a degenerate shifting environment

时间：6月26日（周五）下午2:00

地点：理工楼601

摘要：In this talk, we focus on forced waves arising from the Fisher–KPP equation set within a degenerate shifting environment, addressing their existence, multiplicity, and exact spatial decay rates as well as stability properties. Based on establishing sharp decay estimates and using the ordered structure of all forced wave solutions, we prove that the model may possess exactly one forced wave, infinitely many ordered families of forced waves, or none at all. We also conduct a thorough investigation into the global (non-local) stability of several classes of forced waves and characterize the long-time asymptotic behavior of solutions subject to general initial data.

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报告人简介

吴事良，西安电子科技大学数学与统计学院教授、博士生导师，陕西省科技创新团队带头人。现为中国数学会理事和陕西省数学会常务理事。主要研究方向为微分方程、动力系统及应用。完成国家自然科学基金三项和陕西省杰出青年科学基金一项，在研国家自然科学基金面上项目一项；获陕西省科学技术奖一等奖两项、二等奖一项(第一完成人)，以及第十一届陕西青年科技奖。部分成果发表在J. Math Pures Appl.、Trans. Amer. Math. Soc.、SIAM J. Math Anal.、CVPDE、J. Differential equations等期刊。目前担任期刊International Journal of Biomathematics的编委。

甘肃省计算数学基础学科研究中心

数学与统计学院

萃英学院

2026年6月25日