Acta mathematica scientia,Series B ›› 2023, Vol. 43 ›› Issue (6): 2597-2614.doi: 10.1007/s10473-023-0617-2

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THE ANALYTIC SMOOTHING EFFECT OF LINEAR LANDAU EQUATION WITH SOFT POTENTIALS*

Haoguang LI1,2,†, Chaojiang XU3   

  1. 1. School of Mathematics and Statistics, South-Central Minzu University, Wuhan 430074, China;
    2. Key Laboratory of Mathematical Modelling and High Performance Computing of Air Vehicles, MIIT, Nanjing 210016, China;
    3. School of Mathematics and Key Laboratory of Mathematical MIIT, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
  • Received:2022-04-25 Revised:2023-05-20 Published:2023-12-08
  • Contact: †Haoguang LI, E-mail: lihaoguang@scuec.edu.cn
  • About author:Chaojiang XU, E-mail: xuchaojiang@nuaa.edu.cn
  • Supported by:
    Li's research was supported by the Natural Science Foundation of Hubei Province, China (2022CFB444) and the Key Laboratory of Mathematical Modelling and High Performance Computing of Air Vehicles (NUAA). Xu's research was supported by the NSFC (12031006) and the Fundamental Research Funds for the Central Universities of China.

Abstract: In this work, we study the linearized Landau equation with soft potentials and show that the smooth solution to the Cauchy problem with initial datum in $L^{2}(\mathbb{R}^3)$ enjoys an analytic regularization effect, and that the evolution of the analytic radius is the same as the heat equations.

Key words: linear Landau equation, analytic smoothing effect, soft potential

CLC Number: 

  • 35B65
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