汕头大学杜式忠副教授学术报告


题 目:Finite Time Blowup And Type II Rate For Harmonic Heat Flow From Riemannian Manifolds

时间:2021年12月18日(星期六)上午9:45-12:00

地点:腾讯会议ID 619 736 701

报告人:杜式忠 汕头大学副教授


摘要:This talk will present some new results for the singular forming patterns of hearmonic heat flow, including the phenomenon of finite time blowup and their blowup rate. More precisely, our results include three parts:

(1) The first one generalizes the famous two dimensional finite time blowup result of Chang-Ding-Ye to dimensions 3<=m<7. (2) The second one improves a blowup rate determined by Topping to a more sharper form in the two dimensional case. (3) On the third part, we also determine the blowup rate to be type I when dimension 3<=m<7, which could be regarded as a generalization of Matano-Merle's work for reaction diffusion equation to harmonic heat flow.

These works come from our new paper (arXiv:2104.00408) submit to the Journal recently.


报告人简介:杜式忠,汕头大学副教授。2000年本科毕业于中山大学。毕业后,在邓东皋教授、朱熹平教授的推荐下,来到香港中文大学攻读硕士博士学位,师从曹启昇教授。博士毕业后,在曹老师的推荐下来到澳大利亚国立大学数学研究中心,跟随汪徐家教授和Trudinger教授从事博士后研究。回国后,先任职于哈尔滨工业大学深圳研究生院,现任职于汕头大学数学系。主要从事完全非线性偏微分方程与几何分析相关的理论研究,主持国家自然科学基金面上项目一项、青年基金一项。文章发表于Calc. Var. & PDEs., Journal of Differential Equations等数学刊物上。


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