報 告 人:侯倩倩 副教授
報告題目:Global solutions to the free boundary problem of a chemotaxis-Navier-Stokes system
報告時間:2023年6月28日(周三)上午10:00-12:00
報告地點:騰訊會議:958-794-085
主辦單位:數學與統計學院、數學研究院、科學技術研究院
報告人簡介:
侯倩倩,哈爾濱工業大學,數學研究院副教授。2018年博士畢業于香港理工大學,數學與應用數學系。主要從事趨化模型的數學研究,包括經典趨化模型、趨化流體耦合模型解的適定性等。主持的項目國家自然科學基金青年基金、中國博士后特別資助。部分論文發表在JMPA,SIAM JMA, Nonlinearity,JDE等期刊。
報告摘要:
Chemotaxis is a common phenomenon in biology. Concerning the liquid living environment of micro-organisms, Tuval et al. proposed a chemotaxis-Navier-Stokes system to describe the dynamics of cell-fluid interactions based on experimental observations. In this talk, we investigate the global solvability of the chemotaxis-Navier-Stokes system on a three-dimensional moving domain of finite depth, bounded below by a rigid flat bottom and bounded above by the free surface. We establish the global existence and uniqueness of solutions near a constant state $(0,\hat{c},0)$, where $\hat{c}$ is the saturation value of the oxygen on the free surface.