应pc加拿大预测准确率王智诚教授和张亮教授的邀请，中国科技大学金祝成博士将于2024年5月7日-9日访问兰州大学，期间于5月8日举办专题学术报告。

报告题目：Propagation phenomena in nonautonomous Fisher-KPP equations with nonlocal diffusion

时 间：5月8日上午9:00

地 点：腾讯会议 336-255-228

报告摘要：In this talk, we aim to understand and to describe the propagation phenomena generating from Fisher-KPP equations with nonlocal diffusion in general time heterogeneous media. The propagation phenomena can be mathematically quantified by two notions: traveling waves and spreading speeds. We first study generalized travelling waves for equations with general time heterogeneities both for the dispersal kernel and the reaction term. We investigate the existence and nonexistence of generalized travelling waves for such a problem. Under certain assumptions, we derive a sharp estimate for the average speed functions of generalized traveling waves. Next we show the exact spreading speeds for a nonlocal diffusion KPP equation equipped with compactly supported initial data. We use some ideas from the uniform persistence theory in dynamical systems.

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报告人简介

金祝成，中国科学技术大学博士后研究员，博士毕业于法国诺曼底勒阿弗尔大学。研究兴趣为反应扩散系统的传播现象及其在生物学中的应用，主要关注非均匀环境、非局部扩散以及捕食食饵系统中的传播动力学。相关研究成果在JDE、JNS等杂志发表。

甘肃应用数学中心

pc加拿大预测准确率

萃英学院

2024年5月6日