English

Partially regular weak solutions of the stationary Navier-Stokes equations in dimension 6

Analysis of PDEs 2022-06-13 v1

Abstract

By using defect measures, we prove the existence of partially regular weak solutions to the stationary Navier-Stokes equations with external force fLlocqL3/2,q>3f \in L_{\text{loc}}^q \cap L^{3/2}, q>3 in general open subdomains of R6\mathbb{R}^6. These weak solutions satisfy certain local energy estimates and we estimate the size of their singular sets in terms of Hausdorff measures. We also prove the defect measures vanish under a smallness condition, in contrast to the nonstationary Navier-Stokes equations in R4×[0,[\mathbb{R}^4 \times [0,\infty[.

Keywords

Cite

@article{arxiv.2111.06550,
  title  = {Partially regular weak solutions of the stationary Navier-Stokes equations in dimension 6},
  author = {Bian Wu},
  journal= {arXiv preprint arXiv:2111.06550},
  year   = {2022}
}