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爱游戏体育平台冠名马竞:20221215 王长友 On Variational Problems of Nematic Liquid Crystal Droplets

发布时间:2022-12-14 11:38    浏览次数:    来源:

报告地点:线上腾讯会议158-396-477



报告人:王长友(普渡大学)

报告时间:2022年12月15日(星期四)上午9:00-10:00

题目:On Variational Problems of Nematic Liquid Crystal Droplets

摘要:In this talk, I will describe a recent work, joint with Prof. Li, Qinfeng, on variational problems modeling the equilibrium of nematic liquid crystal droplets. It studies the minimization problem

\[

inf\{ E(u, U)=1/2\int_U |Du|^2 +\int_{\partial U}f(<u,\nu_U>) \},

\]

among all open sets $U \subset B_R$ with fixed volume V, and all Sobolev maps $u\in H^1(U, S^2)$.

I will present some results on the existence of minimizers, and the uniqueness of optimal liquid crystal droplets with homeotropic anchoring condition for the director $u$ among certain types of open sets

$U$.



报告人:温焕尧(华南理工大学)

报告时间:2022年12月15日(星期四)上午10:00-11:00

题目:Vanishing shear viscosity limit for compressible Navier-Stokes-Fourier equations

摘要:In this talk, we will introduce our recent works on vanishing shear viscosity limit for compressible Navier-Stokes-Fourier equations with cylindrical symmetry.  The presence of strong boundary layer effect is the main issue. Some boundary layer equations and the convergence rate are derived. This talk is based on a joint work with Yinghui Wang and Weihao Zhang.


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