報告題目:Fujita-Kato solution for the 3D viscous compressible pressureless flow with discontinuous and large-variation density
報 告 人:徐夫義
報告時間:2025年5月21日 15:00
報告地點: 蓮花街校區惟德樓315會議室
報告人簡介:

徐夫義,山東理工大學數學與統計學院副院長,教授,博士生導師。2013年7月畢業于北京航空航天大學數學與系統科學學院,獲理學博士學位,主要從事流體動力學方程相關問題的研究。現為中國高等教育學會教育數學專業委員會理事。主持完成國家自然科學基金2項,省部級項目5項。已在Cal. Var. PDEs,Commun. Contemp. Math.,Nonlinearity,J. Differential Equations,J. Math. Fluid Mech., Dynamics of PDE,中國科學.數學等國內外知名學術期刊發表SCI檢索50余篇。
報告內容簡介:In this talk, we are concerned with the Cauchy problem for the tridimensional pressureless gases system arising from models of collective behavior. Our objective is to construct the global existence and uniqueness of the so-called Fujita-Kato solution to the system, specifically in the case where the initial densityρ_0 is discontinuous and the initial velocity u_0 has critical regularity. Unlike previous works, the key advancement here is how to deal with the discontinuous density with large-variation. This is a joint work with Xiaojie. Wang and Jiahong. Wu.
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數學與統計學院
2025年5月19日