澳门蒲京娱乐场

科学研究
报告题目:

Rigidity of the Navier-Stokes equations

报告人:

雷震 教授 (复旦大学)

报告时间:

报告地点:

理学院东北楼四楼报告厅(404)

报告摘要:

It has been an old and challenging problem to classify bounded ancient solutions of the incompressible Navier-Stokes equations, which could play a crucial role in the study of global regularity theory.

In the works (see the references), the authors made the following conjecture: { \it for the 3D axially symmetric Navier Stokes equations, bounded mild ancient solutions are constants}. In this article, we solve this conjecture in the case that $u$ is periodic in $z$. To the best of our knowledge, this seems to be the first result on this conjecture without unverified decay conditions. It also shows that nontrivial periodic solutions are not models of possible singularities or high velocity regions. Some partial results in the non-periodic case is also given.