Acta mathematica scientia,Series B ›› 2022, Vol. 42 ›› Issue (5): 1843-1874.doi: 10.1007/s10473-022-0509-x

• Articles • Previous Articles    

LARGE TIME BEHAVIOR OF THE 1D ISENTROPIC NAVIER-STOKES-POISSON SYSTEM

Qingyou He1, Jiawei Sun2   

  1. 1. Department of Mathematics, Capital Normal University, Beijing, 100048, China;
    2. Department of Mathematics, Shandong Normal University, Jinan, 250014, China
  • Received:2021-03-07 Revised:2022-05-19 Published:2022-11-02
  • Contact: Jiawei Sun,E-mail:sunjiawei0122@163.com E-mail:sunjiawei0122@163.com
  • Supported by:
    The research was supported by National Natural Science Foundation of China (11931010, 11671384, 11871047 and 12101372) and by the key research project of Academy for Multidisciplinary Studies, Capital Normal University, and by the Capacity Building for Sci-Tech InnovationFundamental Scientific Research Funds (007/20530290068).

Abstract: The initial value problem (IVP) for the one-dimensional isentropic compressible Navier-Stokes-Poisson (CNSP) system is considered in this paper. For the variables, the electric field and the velocity, under the Lagrange coordinate, we establish the global existence and uniqueness of the classical solutions to this IVP problem. Then we prove by the method of complex analysis, that the solutions to this system converge to those of the corresponding linearized system in the L2 norm as time tends to infinity. In addition, we show, using Green’s function, that the solutions to this system are close to a diffusion profile, pointwisely, as time goes to infinity.

Key words: 1D Navier-Stokes-Poisson system, well-posedness, L2-time decay rates, time-space pointwise behaviors

CLC Number: 

  • 35M10
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