\(L^ 1\) and \(L^ 2\) properties of a class of singular second order elliptic operators on \(\mathbb{R}^ N\) with measurable coefficients
The author considers the equations of motion of a compressible fluid under the correlation \(p= \lambda^2 p(\rho)\) where \(p\) is pressure and \(\rho\) is density. The parameter \(\lambda\) goes to infinity, and a theorem on convergence of the solution of compressible fluid equations to incompressible ones is proved. This corresponds to convergence of the Mach number to zero.
scientific article; zbMATH DE number 933267