Special Session 45: Partial differential equations from fluids and waves

Global well-posedness of 3D inhomogenous Navier-Stokes system with variable viscosity
Dongjuan Niu
Capital Normal University
Peoples Rep of China
Co-Author(s):    Wang,Lu
Abstract:
In this talk, I will present the global well-posedness of 3D inhomogenous Navier-Stokes system with variable viscosity only under the smallness assumptions of initial velocity fields in critical spaces. Compared with the previous results, we remove the small conditions on the initial density by virtue of the velocity decomposition method. In addition, the decay rate of the velocity fields is necessary.