Sharp decay characterization for the compressible Navier-Stokes equations

發布者:吳敏發布時間:2024-07-03浏覽次數:10

江蘇省應用數學(中國礦業大學)中心系列學術報告

報告題目Sharp decay characterization for the compressible Navier-Stokes equations

報告人:徐江(南京航空航天大學教授、博士生導師)

報告時間:202474日(周四)上午10:00-11:00

騰訊會議:會議ID356-514-584

主持人:田守富

報告摘要:The low-frequency assumption has been extensively applied to the large-time asymptotics of solutions to the compressible Navier-Stokes equations and incompressible Navier-Stokes equations since from those classical efforts. In this talk, we will give a sharp decay characterization for the compressible Navier-Stokes equations in the critical framework. Precisely, the Besov boundedness of the low-frequency part of initial perturbation is not only sufficient but also necessary to achieve those upper bounds of time-decay estimates. Furthermore, it is shown that upper and lower bounds of time-decay estimates both hold if and only if the low-frequency part of the initial perturbation belongs to a nontrivial subset of some Besov space.

報告人簡介:從事流體力學偏微分方程的數學理論研究。2007年畢業于浙江大學,獲博士學位,2013年入選教育部新世紀優秀人才,2019年入選國家高層次青年人才。現擔任伟德bv副院長,江蘇省工業與應用數學學會副理事長和江蘇省數學學會副理事長。曾擔任日本九州大學訪問教授和早稻田大學公派高級研究學者。在Arch. Rational Mech. Anal., Comm. Math. Phys., Comm. Part. Diff. Eqs., J. Math. Pures Anal., SIAM J. Math. Anal.等國内外著名期刊上發表70篇餘篇SCI論文,其中ESI高被引論文2篇。先後主持4項國家自然科學基金項目和參與1項國家自然科學基金重點項目。2023年獲教育部自然科學獎二等獎(第一完成人),負責建設的《常微分方程》入選2024年江蘇省一流本科課程。



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