Spectral properties of the semigroup for the linearized compressible Navier-Stokes equation around a parallel flow in a cylindrical domain

Reika Aoyama, Yoshiyuki Kagei

    Research output: Contribution to journalArticlepeer-review

    8 Citations (Scopus)

    Abstract

    This paper is concerned with the stability of a parallel flow of the compressible Navier-Stokes equation in a cylindrical domain. The spectrum of the linearized operator is analyzed for the purpose of the study of the nonlinear stability. It is shown that, if the Reynolds and Mach numbers are sufficiently small, then the linearized semigroup is decomposed into two parts; one behaves like a solution of a one dimensional heat equation as time goes to infinity and the other one decays exponentially. Some estimates related to the spectral projections are established, which will also be useful for the study of the nonlinear problem.

    Original languageEnglish
    Pages (from-to)265-300
    Number of pages36
    JournalAdvances in Differential Equations
    Volume21
    Issue number3-4
    Publication statusPublished - 2016

    All Science Journal Classification (ASJC) codes

    • Analysis
    • Applied Mathematics

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