Global existence of weak solution for quantum Navier-Stokes-Poisson equations.

In this paper, we consider the compressible quantum Navier-Stokes-Poisson equations with a linear density-dependent viscosity. By the use of a singular pressure close to vacuum, we prove the global-in-time existence of weak solutions in a three-dimensional torus for large data in the sense of distribution. [ABSTRACT FROM AUTHOR]