09-14 講座預告:Dynamic behavior of entropy of the compressible Navier-Stokes equations

發布時間:2023-09-13

 

題目一:Dynamic behavior of entropy of the compressible Navier-Stokes equations

内容簡介:In the presence of vacuum, the physical entropy for polytropic gases behave singularly and it is thus hard to study its dynamics. In this talk, we present some recent studies on the dynamic behavior of the entropy to the viscous compressible ideal gases in the presence of vacuum either at the far field or on the gas-vacuum interface. It will be shown in this talk that, in the case that the vacuum presents at the far fields only, the uniform boundedness of the entropy can be propagated locally or globally if the initial density decays slowly, while if the initial density decays sufficiently fast, the entropy becomes unbounded immediately after the initial time, in particular, the entropy tends to infinity at the far field.

報告人:李進開

報告人簡介:華南師範大學數學科學學院教授,博士生導師。2022年入選國家高層次人才特殊支持計劃科技創新領軍人才,2018年入選國家海外高層次人才引進計劃青年項目,曾獲得“2020世界華人數學家聯盟最佳論文獎金獎(2020 ICCM Best Paper Award)以及第二屆中國科協優秀科技論文獎。目前已在包括CPAM, Adv. Math, JFA, ARMA, CPDE, SIMA等國際學術期刊上發表SCI論文40多篇。

 

題目二:Traveling waves for degenerate diffusion equations

内容簡介:This talk is about the traveling waves for degenerate diffusion equations, including porous medium, p-Laplacian and polypropic filtration type diffusion.

報告人:黃銳

報告人簡介:華南師範大學數學科學學院教授,博導。廣東特支計劃科技創新青年拔尖人才,重慶市巴渝學者講座教授,(國家)粵港澳應用數學中心副秘書長。主要從事非線性擴散方程的研究工作,先後主持國家自然科學基金、教育部及廣東省和廣州市各類科研項目多項,發表論文50餘篇。曾應邀赴法國馬賽大學,加拿大麥吉爾大學和香港理工大學等高校學術訪問。

 

  間:2023914日(周四)下午1500

  點:石牌校區南海樓224

 

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