数学物理学报 ›› 2021, Vol. 41 ›› Issue (5): 1396-1404.

• 论文 • 上一篇    下一篇

三维Navier-Stokes方程在Lorentz空间中的正则性准则

周道国()   

  1. 河南理工大学数学与信息科学学院 河南焦作 454000
  • 收稿日期:2020-08-30 出版日期:2021-10-26 发布日期:2021-10-08
  • 作者简介:周道国, E-mail: daoguozhou@hpu.edu.cn
  • 基金资助:
    国家自然科学基金(12071113)

Regularity Criteria in Lorentz Spaces for the Three Dimensional Navier-Stokes Equations

Daoguo Zhou()   

  1. School of Mathematics and Information Science, Henan Polytechnic University, Henan Jiaozuo 454000
  • Received:2020-08-30 Online:2021-10-26 Published:2021-10-08
  • Supported by:
    the NSFC(12071113)

摘要:

该文证明了三维Navier-Stokes方程弱解在尺度不变Lorentz空间中的正则性准则,这些准则依赖于速度或涡度或速度的梯度的水平分量.该结果改进了Navier-Stokes方程的所有已知的关于Lorentz空间或两个分量的正则性准则.

关键词: Navier-Stokes方程, 弱解, 正则性

Abstract:

We prove regularity criteria for weak solutions to the three dimensional Navier-Stokes equations, via horizontal part of the velocity, or the vorticity, or the gradient of velocity in scaling invariant Lorentz spaces. Our results improve almost all known regularity criteria involving Lorentz spaces or two components.

Key words: Navier-Stokes equations, Weak solutions, Regularity

中图分类号: 

  • O175