拟线性退化抛物方程{δtu+δxf(u)=δxxA(u)-u^p,(x,t)∈R+^2=R×(0,+∞),u(x,0)=u0(x),x∈R来自于反应扩散等许多物理问题,有着深刻的应用背景.本文利用Young测度的概念和DivCurl引理证明了在0≤u0(x)∈L^2(R)∩L^p(R)和f是真正非线性函数的条件下,存在一L^p熵解.
The Quasilinear degenerate parabolic equation {δtu+δxf(u)=δxxA(u)-u^p,(x,t)∈R+^2=R×(0,+∞),u(x,0)=u0(x),x∈R comes from reaction diffusion etc physics problems, its applied background is very profound. The paper proves that there is a entropy solution provided that and f is a genuinely nonlinear function. Young measure and Div-Curl Lemma act as important roles in our proof.