数学物理学报 ›› 2011, Vol. 31 ›› Issue (6): 1662-1668.

• 论文 • 上一篇    下一篇

耗散线性Boltzmann方程的解的正则性

晋守博|陈攀峰|孙善辉   

  1. 1.宿州学院 智能信息处理实验室 |安徽宿州 234000;
    2.宿州学院 数学与统计学院 |安徽宿州 234000
  • 收稿日期:2010-11-24 修回日期:2011-12-06 出版日期:2011-12-25 发布日期:2011-12-25
  • 基金资助:

    宿州学院智能信息处理实验室开放课题(2011YKF12, 2011YKF14)和安徽省高校优秀青年人才基金(2011SQRL153)资助

Regularity of the Solution to the Dissipative Linear Boltzmann Equation

 JIN Shou-Bo, CHEN Pan-Feng, SUN Shan-Hui   

  1. 1.Laboratory of Intelligent Information Processing, Suzhou University, Anhui Suzhou 234000;
    2.School of Mathematics and Statistics, Suzhou University, Anhui Suzhou 234000
  • Received:2010-11-24 Revised:2011-12-06 Online:2011-12-25 Published:2011-12-25
  • Supported by:

    宿州学院智能信息处理实验室开放课题(2011YKF12, 2011YKF14)和安徽省高校优秀青年人才基金(2011SQRL153)资助

摘要:

该文讨论了一种与特定背景介质发生耗散碰撞的稀薄气体的线性Boltzmann方程, 当该方程的碰撞核具有拟Maxwell形式时, 考查了方程的解的正则性, 证明了当气体的初始分布f0(v)具有有限温度时, 如果f0(v)∈H(R3), 那么耗散线性Boltzmann方程的解f(v, t)∈H(R3).

关键词: 线性Boltzmann方程, 正则性, Sobolev空间, 傅里叶变换

Abstract:

This paper discusses a linear Boltzmann equation describing dissipative interactions of a gas of test particles with a fixed background. For a pseudo-Maxwellian collision kernel, it is proved that, if the initial distribution has finite  temperature and f0(v)∈H(R3),  the solution f(v, t)  of Boltzmann equation belongs to Sobolev space H(R3).

Key words: Linear Boltzmann equation, Regularity, Sobolev space, Fourier transform

中图分类号: 

  • 35Q58