zbMATH — the first resource for mathematics

Compactness of solutions of compressible isentropic Navier-Stokes equations. (Compacité des solutions des équations de Navier-Stokes compressibles isentropiques.) (French. Abridged English version) Zbl 0781.76072
Summary: We present a general result on the compactness of sequence of solutions of compressible, isentropic Navier-Stokes equations. This theorem is the central result allowing to prove the existence of global solutions for these equations. The type of compactness we obtain corresponds to the propagation in time of the \(L^ p\) compactness of the density, a fact which is somehow optimal in view of acoustic phenomena or of the propagation of oscillations for such systems of equations.

76N10 Existence, uniqueness, and regularity theory for compressible fluids and gas dynamics
35Q30 Navier-Stokes equations