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厦门大学数学科学学院张剑文教授学术报告(一)(二)

信息来源: 院科研办 发布日期: 2021-06-19 浏览次数:

厦门大学数学科学学院张剑文教授学术报告(一)

报告题目:Global Regularity and Large-Time Behavior of 3D Navier-Stokes Equations for Compressible Viscous Heat-Conducting Fluids

报告人:张剑文厦门大学

报告时间20216221100

报告地点数学与计算机科学学院4号楼302

报告摘要:This talk is concerned with the Cauchy problem of Navier-Stokes equations for compressible viscous heat-conductive fluids. For less regular data and weaker compatibility condition than those proposed in the previous works, we prove the existence of local-in-time   solutions belonging to a larger class of functions in which the uniqueness can be shown to hold. The local solution is in fact a classical one away from the initial time, provided the initial density is more regular. We also establish the global well-posedness of classical solutions with large oscillations and vacuum in the case when the total initial energy is suitably small. The exponential decay estimates of the global solutions are obtained.


厦门大学数学科学学院张剑文教授学术报告(二)

报告题目:Stability and Decay of Incompressible Flows with Partial Dissipation and Damping.

报告人:张剑文厦门大学

报告时间20216221400

报告地点数学与计算机科学学院4号楼302

报告摘要:In this talk, we will introduce some recent stability/decay results for the 2D incompressible Boussinesq/MHD equations with anisotropic dissipation or partial damping. The results obtained particular imply that the buoyancy force/magnetic field has a stabilizing effect on the fluid dynamics.


个人简介:张剑文,男,厦门大学数学科学学院教授、博导、副院长。主要研究方向为流体力学中的非线性偏微分方程(组),在Navier-Stokes、MHD、Boussinesq方程的适定性、正则性、稳定性、长时间性质和小参数极限等问题中取得许多进展性研究成果,并发表在SIMA、IUMJ、M3AS、JDE、JNLS、Nonlinearity等期刊上近50篇。连续主持多项国家自然科学基金项目,曾作为主要参与人获福建省自然科学奖二等奖、国家教学成果奖二等奖、福建省教学成果特等奖。