On local strong and classical solutions to the three-dimensional barotropic compressible Navier-Stokes equations with vacuum

We consider the local well-posedness of strong and classical solutions to the three-dimensional barotropic compressible Navier-Stokes equations with density containing vacuum initially. We first prove the local existence and uniqueness of the strong solutions, where the initial compatibility condition proposed by Cho et al. (2004), Cho and Kim (2006) and Choe and Kim (2003) is removed in a suitable sense. Then, the continuous dependence of strong solutions on the initial data is derived under an additional compatibility condition. Moreover, for the initial data satisfying some additional regularity and the compatibility condition, the strong solution is proved to be a classical one.

Automated summary

The paper examines the local well-posedness of strong and classical solutions to the three-dimensional barotropic compressible Navier-Stokes equations with density containing vacuum initially. It first proves the local existence and uniqueness of strong solutions by removing the initial compatibility condition proposed by previous researchers in a suitable sense. Furthermore, it derives the continuous dependence of strong solutions on the initial data under an additional compatibility condition, and shows that for initial data satisfying certain regularity and compatibility conditions, the strong solution is a classical one.