English

Weak-strong uniqueness principle for compressible barotropic self-gravitating fluids

Analysis of PDEs 2021-09-09 v1

Abstract

The aim of this work is to prove the weak-strong uniqueness principle for the compressible Navier-Stokes-Poisson system on an exterior domain, with an isentropic pressure of the type p(ϱ)=aϱγp(\varrho)=a\varrho^{\gamma} and allowing the density to be close or equal to zero. In particular, the result will be first obtained for an adiabatic exponent γ[9/5,2]\gamma \in [9/5,2] and afterwards, this range will be slightly enlarged via pressure estimates "up to the boundary", deduced relaying on boundedness of a proper singular integral operator.

Keywords

Cite

@article{arxiv.2109.03653,
  title  = {Weak-strong uniqueness principle for compressible barotropic self-gravitating fluids},
  author = {Danica Basarić},
  journal= {arXiv preprint arXiv:2109.03653},
  year   = {2021}
}
R2 v1 2026-06-24T05:47:24.597Z