Acta mathematica scientia,Series B ›› 2019, Vol. 39 ›› Issue (1): 127-138.doi: 10.1007/s10473-019-0112-y

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STABILITY OF GLOBAL MAXWELLIAN FOR NON-LINEAR VLASOV-POISSON-FOKKER-PLANCK EQUATIONS

Jie LIAO1, Qianrong WANG1, Xiongfeng YANG2   

  1. 1. Department of Mathematics, East China University of Science and Technology, Shanghai 200237, China;
    2. School of Mathematical Sciences;Key Laboratory of Scientific and Engineering Computing(MOE), Shanghai Jiao Tong University, Shanghai, 200240, China
  • Received:2017-09-15 Revised:2018-02-24 Online:2019-02-25 Published:2019-03-13
  • Contact: Jie LIAO E-mail:liaojie@ecust.edu.cn
  • Supported by:
    The research was partially supported by Fundamental Research Funds for the Central Universities, NSFC (11871335) and by the SJTU's SMC Projection.

Abstract: In this article, we establish the exponential time decay of smooth solutions around a global Maxwellian to the non-linear Vlasov—Poisson—Fokker—Planck equations in the whole space by uniform-in-time energy estimates. The non-linear coupling of macroscopic part and Fokker—Planck operator in the model brings new difficulties for the energy estimates, which is resolved by adding tailored weighted-in-v energy estimates suitable for the Fokker—Planck operator.

Key words: non-linear Vlasov-Poisson-Fokker-Planck equation, global Maxwellian, global a priori estimates, exponential convergence

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