應(yīng)yl7703永利官網(wǎng)王躍循教授邀請,上海交通大學(xué)數(shù)學(xué)科學(xué)學(xué)院朱圣國副教授將于2022年10月14日上午在線舉辦學(xué)術(shù)報(bào)告。
報(bào)告題目: Global regular solutions for 1D degenerate compressible Navier-Stokes equations with large data and far field vacuum
時(shí) 間:10月14日(星期五)10:30
騰訊會議ID:374 203 023
報(bào)告摘要:For compressible isentropic Navier-Stokes equations, when the viscosity coefficient depends on the density in a sublinear power law, based on an elaborate analysis of the intrinsic singular structure of this degenerate system, we prove the global-in-time well-posedness of regular solutions with conserved total mass, momentum, and finite total energy in some inhomogeneous Sobolev spaces. The key to the proof is the introduction of a well-designed reformulated structure by introducing some new variables and initial compatibility conditions, which, actually, can transfer the degeneracies of the time evolution and the viscosity to the possible singularity of some special source terms. Then, combined with the BD entropy estimates and transport properties of the so-called effective velocity, one can obtain the required uniform a priori estimates of corresponding solutions. This talk is based on a joint work with Yue Cao (SJTU) and Hao Li (Fudan).
歡迎廣大師生光臨!
朱圣國教授簡介:
朱圣國,上海交通大學(xué)數(shù)學(xué)科學(xué)學(xué)院副教授、博士生導(dǎo)師、國家特聘青年專家,2015年于上海交通大學(xué)獲理學(xué)博士學(xué)位,曾先后在香港中文大學(xué)、澳大利亞莫納什大學(xué)、英國牛津大學(xué)做博士后,并于2017年入選英國皇家學(xué)會”Newton International Fellow”,主要從事流體力學(xué)和相對論中的偏微分方程的理論研究,在可壓縮Navier-Stokes 及Euler方程組的適定性和奇異性方面取得了一系列重要進(jìn)展,目前已在 “Trans. Amer. Math. Soc.”、“Adv. Math.”、“Arch. Ration. Mech. Anal.”、“Ann. Inst. H. Poincare Anal. Non Lineaire” “J. Math. Pures Appl.”等國際重要學(xué)術(shù)期刊上發(fā)表論文多篇。
甘肅應(yīng)用數(shù)學(xué)中心
甘肅省高校應(yīng)用數(shù)學(xué)與復(fù)雜系統(tǒng)省級重點(diǎn)實(shí)驗(yàn)室
yl7703永利官網(wǎng)
萃英學(xué)院
2022年10月12日