| 概要 |
The linearized problem around space-time periodic solution of the compressible Navier-Stokes equation in an infinte layer is studied. The spectrum for the low frequency part of evolution operator is analyzed by employing Bloch transformation. It is shown that if the Reynold and Mach number is sufficiently small, solution of the linearized problem behaves like a solution of n-1 dimensional heat equation as time goes to infinity. A Floquet representation for this evolution operator is established.
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