Global stability of large Fourier mode for 3-D anisotropic Navier-Stokes equations in cylindrical domain

报告专家:张平院士(中国科学院数学与系统科学研究院)

报告时间:2024年4月24日 16:00-17:00

报告地点:国家天元数学西南中心516报告厅

课程介绍:In this talk, we first present the global existence and stability of solutions to 3-D classical Navier-Stokes equations $(NS)$ in an infinite cylindrical domain with large Fourier mode initial data. Then we extend similar result for 3-D anisotropic Navier-Stokes equations $(ANS)$. We remark that due to the loss of vertical viscosity in $(ANS)$, the construction of the energy functionals for $(ANS)$ is much more subtle than that for $(NS)$. Compared with our previous paper for $(NS)$, we improve the polynomial decay in $k$ for the Fourier coefficients of the solution to be exponential decay in $k$ here.

专家简介:张平,中国科学院院士,现任中科院数学与系统科学研究院院长。他曾获国家自然科学二等奖、国家杰出青年基金、教育部重要人才计划特聘教授(中国科学院大学)和中国数学会陈省身奖等。他主要研究粘性不可压缩流体力学方程组与非线性Schrödinger方程的半经典极限,其工作发表在Comm. Pure Appl. Math.、Ann. Sci. École Norm. Sup.和J. Reine Angew. Math.等刊,并在美国数学会出版专著一部。

邀请人:王宝富

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