摘要
考虑一维空间对流扩散方程(c)/(t)+u(c)/(x)=Dc_(xx)+c_(xt)-(c^2)_x解的L_p(2≤p≤∞)衰减估计,利用格林函数、频谱分析、能量估计等方法得到了解有与热核算子相同的衰减速度.
This paper investigated the Lp estimates of solutions to one-dimensional convection-diffusion equationsc/t + uc/x= Dc(xx) + c(xt)-(c^2)x,using Green's function method,frequency decomposition and energy estimates.We found that the decay rate of the solution is the same as that for heat fusion operator.
出处
《华东师范大学学报(自然科学版)》
CAS
CSCD
北大核心
2016年第3期21-26,共6页
Journal of East China Normal University(Natural Science)
基金
国家自然科学基金(11101121)
关键词
对流扩散方程
Lp衰减
频谱分析
格林函数
能量估计
convection-diffusion equation
Lp estimates
frequency decomposition
Green's function
energy estimates