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【学术报告】2019年9月23日李用声教授来我们举办学术讲座

时间:2019-09-17

报告人:李用声 教授(华南理工大学)

报告题目:Global well-posedness and inviscid limits of the generalized Oldroyd type models

报告摘要:We consider $n$-D Cauchy problem of the generalized Oldroyd-B model without damping on the stress tensor. We obtain the global small solutions and give positive answers partially to the question proposed by Elgindi and Liu (J Diff Eq 259:1958--1966, 2015). The proof relies heavily on the trick of transferring dissipation from $u$ to $\tau$, and a new commutator estimate which may be of interest for future works. Moreover, we prove a global result of inviscid limit of 2-D Oldroyd type models in the Sobolev spaces. The convergence rate is also obtained simultaneously.

报告人简介:李用声,华南理工大学数学学院,二级教授。主要从事非线性偏微分方程的研究工作。在国内外重要学术刊物上发表论文80 余篇,其中SCI收录60余篇。

报告时间:2019年9月23日(星期一)下午14:00-16:30

报告地点:科技楼南楼702室


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