Well-Posedness in Critical Spaces for Barotropic Viscous Fluids with Truly Not Constant Density

2007 ◽  
Vol 32 (9) ◽  
pp. 1373-1397 ◽  
Author(s):  
R. Danchin
Keyword(s):  
Viscous Fluids ◽  
Constant Density ◽  
Well Posedness ◽  
Critical Spaces

Density-dependent incompressible viscous fluids in critical spaces

2003 ◽  
Vol 133 (6) ◽  
pp. 1311-1334 ◽  
Author(s):  
R. Danchin
Keyword(s):  
Initial Velocity ◽  
Stokes Equations ◽  
Initial Density ◽  
Navier Stokes ◽  
Constant Density ◽  
Well Posedness ◽  
Critical Spaces ◽  
Density Dependent ◽  
Whole Space ◽  
Incompressible Viscous Fluids

We study the unique solvability of density-dependent incompressible Navier-Stokes equations in the whole space RN (N ≥ 2). The celebrated results by Fujita and Kato devoted to the constant density case are generalized to the case when the initial density is close to a constant: we find local well posedness for large initial velocity, and global well posedness for initial velocity small with respect to the viscosity. Our functional setting is very close to the one used by Fujita and Kato.

Sign in / Sign up

Export Citation Format

Share Document